46 C.F.R. Subpart 162.050—Pollution Prevention Equipment
Title 46 - Shipping
Source: CGD 76–088a, 44 FR 53359, Sept. 13, 1979, unless otherwise noted.
(a) This subpart contains— (1) Procedures for approval of 100 p.p.m. separators, 15 p.p.m. separators, cargo monitors, bilge monitors, and bilge alarms; (2) Design specifications for this equipment; (3) Tests required for approval; (4) Procedures for obtaining designation as a facility authorized to conduct approval tests; (5) Marking requirements; and (6) Factory inspection procedures. (b) [Reserved] (a) p.p.m. means parts per million by volume of oil in water; (b) 100 p.p.m. separator means a separator that is designed to remove enough oil from an oil-water mixture to provide a resulting mixture that has an oil concentration of 100 p.p.m. or less; (c) 15 p.p.m. separator means a separator that is designed to remove enough oil from an oil-water mixture to provide a resulting mixture that has an oil concentration of 15 p.p.m. or less; (d) Cargo monitor means an instrument that is designed to measure and record the oil content of cargo residues from cargo tanks and oily mixtures combined with these residues; (e) Bilge monitor means an instrument that is designed to measure and record the oil content of oily mixtures from machinery space bilges and fuel oil tanks that carry ballast; (f) Bilge alarm means an instrument that is designed to measure the oil content of oily mixtures from machinery space bilges and fuel oil tanks that carry ballast and activate an alarm at a set concentration limit; and (g) Independent laboratory means a laboratory that— (1) Has the equipment and procedures necessary to approve the electrical components described in §§162.050–21(b) and 162.050–25(c), or to conduct the test described in §162.050–37(a); and (2) Is not owned or controlled by a manufacturer, supplier, or vendor of separators, monitors, or bilge alarms. (a) The following documents are incorporated by reference into this subpart: (1) Underwriters Laboratories Standard 913 (as revised April 8, 1976). (2) “Experimental Statistics”, National Bureau of Standards Handbook No. 91 (October 1966). (3) ASTM D 2777–98, Standard Practice for Determination of Precision and Bias of Applicable Test Methods of Committee D–19 on Water—162.050–15. (b) The documents listed in this section may be obtained as follows: (1) The UL standard may be obtained from Underwriters Laboratories, Inc., (UL), 12 Laboratory Drive, Research Triangle Park, NC 27709–3995. (2) You may obtain the ASTM Standard from the American Society for Testing and Materials, 100 Barr Harbor Drive, West Conshohocken, PA 19428–2959. (3) The NBS handbook may be obtained from the Superintendent of Documents, U.S. Government Printing Office, Washington, DC 20402. (c) The documents listed in this section are also on file in the Federal Register library. (d) Approval to incorporate by reference the materials listed in this section was obtained from the Director of the Federal Register on August 21, 1979. [44 FR 53359, Sept. 13, 1979, as amended by USCG–1999–6216, 64 FR 53228, Oct. 1, 1999; USCG–1999–5151, 64 FR 67185, Dec. 1, 1999] (a) An application for approval of a 15 p.p.m. separator, a cargo or bilge monitor, or a bilge alarm must contain the following information: (1) A brief description of the item submitted for approval. (2) The name and address of the applicant and its manufacturing facility. (3) A detailed description of quality control procedures, in-process and final inspections and tests followed in manufacturing the item, and construction and sales record keeping systems maintained. (4) Arrangement drawings and piping diagrams of the item that give the information prescribed by §56.01–10(d) of this chapter. (5) Detailed electrical plans of the type described in §110.25–1 of this chapter. (6) An instructions manual containing detailed instructions on installation, operation, calibration and zeroing, and maintenance of the item. (7) For each monitor and bilge alarm and each control on a separator, the vibration test report described in §162.050–37. (8) For each cargo monitor, a statement of whether it is to be used with crude oils, refined products, or both. (9) A list of the substances used in operating the item that require certification under part 147 of this chapter as articles of ships' stores and supplies. (10) The name of the facility to conduct approval testing. (11) If the applicant intends to use a test rig other than a test rig of the facility, a detailed description of the rig. (b) An applicant may incorporate by reference in his application information that he has submitted in a previous application. [44 FR 53359, Sept. 13, 1979, as amended by USCG–1999–6216, 64 FR 53228, Oct. 1, 1999] (a) An application for approval of equipment under this subpart must be sent to the Commanding Officer, U.S. Coast Guard Marine Safety Center, Engineering Division, 400 Seventh Street SW., Washington, DC 20590–0001. (b) The application is examined by the Coast Guard to determine whether the item complies with the design requirements and vibration standard prescribed in this subpart and to determine what probability the item has of passing the approval tests. The applicant is notified of the results of the examination. (c) If examination of the application reveals that it is incomplete, it is returned to the applicant with a statement of reasons why it is incomplete. (d) The applicant must make arrangements for approval testing directly with a testing facility and must provide the facility with a copy of the instructions manual for the equipment to be tested. (e) If applications for approval of a separator have been made for more than one size, the applicant, in lieu of submitting each size for approval testing, may submit each size that has a capacity exceeding fifty (50) cubic meters per hour throughput, if any, and two additional sizes that have a capacity of fifty (50) cubic meters per hour throughput or less. One of the additional sizes must have a capacity that is in the highest quartile of capacities manufactured in the 0–50 cubic meters per hour throughput range and the other must be from the lowest quartile. (f) Each approval test must be performed by a facility designated under §162.050–15. The facility must perform each test in accordance with the test conditions prescribed in this subpart for the test, prepare a test report for the item if it completes all of the tests, and send the report with four copies to the Commanding Officer, USCG Marine Safety Center. The applicant may observe the tests. (If an item does not complete testing, a new application must be made before retesting.) (g) The Commanding Officer, USCG Marine Safety Center, sends a copy of the test report to the applicant and advises him whether the item is approved. If the item is approved, an approval certificate is sent to the applicant. The approval certificate lists conditions of approval applicable to the item. (h) A separator is approved under this subpart if— (1) It meets the design requirements in §162.050–21 and is tested in accordance with this subpart; (2) In the case of a 15 p.p.m. separator, the oil content of each sample of separated water effluent taken during approval testing is 15 p.p.m. or less; (3) During Test No. 3S an oily mixture is not observed at the separated water outlet of the separator; (4) During Test No. 5S its operation is continuous; and (5) Any substance used in operating the separator that requires certification under part 147 of this chapter as an article of ships' stores or supplies has been certified. (i) A cargo monitor is approved under this subpart if— (1) It meets the design requirements in §162.050–25 and is tested in accordance with this subpart; (2) Each oil content reading recorded during approval testing is within ±10 p.p.m. or ±20 percent of the oil content of the sample of influent mixture taken at the time of the reading; (3) Its response time is twenty (20) seconds or less in Test No. 3CM; (4) The time intervals between successive readings recorded in Test No. 4CM are twenty (20) seconds or less; and (5) Any substance used in operating the monitor that requires certification under part 147 of this chapter as an article of ships' stores or supplies has been certified. (j) A bilge monitor is approved under this subpart if— (1) It meets the design requirements in §162.050–29 and is tested in accordance with this subpart; (2) Except as provided in paragraph (j)(5) of this section, each oil content reading recorded during approval testing is within ±10 p.p.m. or ±20 percent of the oil content of the sample of influent mixture taken at the time of the reading; (3) The time intervals between successive readings recorded in Test No. 3BM are twenty (20) seconds or less; (4) The time intervals between successive readings recorded in Test No. 4BM are twenty (20) seconds or less; (5) The oil content of the sample taken each time the device required by §162.050–29(c)(1) actuates is 15 p.p.m. ±5 p.p.m.; (6) The oil content of the sample taken each time the device required by §162.050–29(c)(2) actuates is 100 p.p.m. ±20 p.p.m.; and (7) Any substance used in operating the monitor that requires certification under part 147 of this chapter as an article of ships' stores or supplies has been certified. (k) A bilge alarm is approved under this subpart if— (1) It meets the design requirements in §162.050–33 and is tested in accordance with this subpart; (2) The oil content of each sample taken during approval testing is 15 p.p.m. ±5 p.p.m.; (3) Its response time is twenty seconds or less in Test No. 2A; and (4) Any substance used in operating the alarm that requires certification under part 147 of this chapter as an article of ships' stores or supplies has been certified. [44 FR 53359, Sept. 13, 1979, as amended by CGD 82–063b, 48 FR 4783, Feb. 3, 1983; 48 FR 45114, Oct. 3, 1983; CGD 88–070, 53 FR 34537, Sept. 7, 1988; CGD 95–072, 60 FR 50467, Sept. 29, 1995; CGD 96–041, 61 FR 50734, Sept. 27, 1996; USCG–1999–6216, 64 FR 53228, Oct. 1, 1999; USCG 2001–10224, 66 FR 48621, Sept. 21, 2001] (a) A report of approval testing must contain the following: (1) Name of the testing facility. (2) Name of the applicant. (3) Date of receiving the item for testing and the dates of the tests conducted. (4) Trade name and brief description of the item. (5) A listing of the following properties of the test oils used: (i) Relative density at 15 °C. (ii) Viscosity in centistokes at 37.8 °C. (iii) Flashpoint. (iv) Weight of ash content. (v) Weight of water content. (vi) Relative density at 15 °C. the of water used during testing and the weight of solid content in the water. (vii) The data recorded during each test. (b) [Reserved] (a) Each separator, monitor, and bilge alarm manufactured under Coast Guard approval must be plainly marked by the manufacturer with the information listed in paragraph (b) of this section. The marking must be securely fastened to the item. (b) Each marking must include the following information: (1) Name of the manufacturer. (2) Name or model number of the item. (3) If the item is a separator, the maximum throughput and the maximum influent pressure at which the separator is designed to operate. (4) The month and year of completion of manufacture. (5) The manufacturer's serial number for the item. (6) The Coast Guard approval number assigned to the item in the certificate of approval. (7) A list of bilge cleaners, solvents, and other chemical compounds that do not impair operation of the item. (8) If the item is a cargo monitor, the oils for which use has been approved. (9) If the item is a separator that uses replaceable filter or coalescer elements, the part numbers of the elements. (a) Equipment manufactured under Coast Guard approval must be of the type described in the current certificate of approval issued for the equipment. (b) Equipment manufactured under Coast Guard approval is not inspected on a regular schedule at the place of manufacture. However, the Commanding Officer, USCG Marine Safety Center, may detail Coast Guard personnel at any time to visit a factory where the equipment is manufactured to conduct an inspection of the manufacturing process. [44 FR 53359, Sept.13, 1979, as amended by USCG 2001–10224, 66 FR 48621, Sept. 21, 2001] (a) Each sample obtained in approval testing must be approximately one (1) liter in volume and must be collected in a narrow-necked glass bottle that has a pressure sealing cap. The cap must be lined with a material that will not affect the oil content of the sample. (b) Each sample must be preserved by the addition of 5 ml. of hydrochloric acid at the time of collection. The hydrochloric acid must consist of equal amounts of concentrated reagent grade hydrochloric acid and distilled water. (c) Each sample must be refrigerated at or below 4 °C. until analyzed. However, refrigeration is not necessary if there is no time delay between sample collection and analysis. (a) Each request for designation as a facility authorized to perform approval tests must be submitted to the Commanding Officer, U.S. Coast Guard Marine Safety Center, Engineering Division, 400 Seventh Street SW., Washington, DC 20590–0001. (b) Each request must include the following: (1) Name and address of the facility. (2) Each type of equipment the facility proposes to test. (3) A description of the facility's capability to perform approval tests including detailed information on the following: (i) Management organization including personnel qualifications. (ii) Equipment available for conducting sample analysis. (iii) Materials available for approval testing. (iv) Each of the facility's test rigs, if any. (c) The Coast Guard reviews each request submitted to determine whether the facility meets the requirements of paragraphs (g)(1) through (g)(4) of this section. (d) If the facility meets the requirements in paragraphs (g)(1) through (g)(4) of this section, it is then supplied with twelve samples containing mixtures of oil in water that are within a 10 to 30 p.p.m. range. (e) The facility must measure the oil content of each sample using the method described in §162.050–39 and report the value of each of the 12 measurements to the Commanding Officer, U.S. Coast Guard Marine Safety Center, Engineering Division, 400 Seventh Street SW., Washington, DC 20590–0001. (f) The measurements must meet the following criteria: (1) Except as provided in paragraph (f)(2) of this section, the absolute value of Tn for each measurement, as determined by the American Society for Testing and Materials, “Standard Practice for Determination of Precision and Bias of Methods of Committee D–19 on Water”, D 2777 (incorporated by reference, see §162.050–4), must be less than or equal to 2.29 at a confidence level of 0.05. (2) The absolute value of Tn for one measurement may exceed 2.29 if the Tn values for the other eleven measurements are less than or equal to 2.23 at a confidence level of 0.05. If the Tn value for one measurement exceeds 2.29, that measurement is not used in the method described in paragraph (f)(3) of this section. (3) The value of X
(g) To obtain authorization to conduct approval tests— (1) A facility must have the management organization, equipment for conducting sample analysis, and the materials necessary to perform the tests; (2) Each facility test rig must be of a type described in §162.050–17 or §162.050–19; (3) The loss or award of a specific contract to test equipment must not be a substantial factor in the facility's financial well being; (4) The facility must be free of influence and control of the manufacturers, suppliers, and vendors of the equipment; and (5) The oil content measurements submitted to the Commandant must meet the criteria in paragraph (f) of this section. (h) A facility may not subcontract for approval testing unless previously authorized by the Coast Guard. A request for authorization to subcontract must be sent to the Commanding Officer, U.S. Coast Guard Marine Safety Center, Engineering Division, 400 Seventh Street SW., Washington, DC 20590–0001. [44 FR 53359, Sept. 13, 1979, as amended by CGD 82–063b, 48 FR 45114, Oct. 3, 1983; CGD 88–070, 53 FR 34537, Sept. 7, 1988; CGD 95–072, 60 FR 50467, Sept. 29, 1995; CGD 96–041, 61 FR 50734, Sept. 27, 1996; USCG–1999–5151, 64 FR 67185, Dec. 1, 1999; USCG 2001–10224, 66 FR 48621, Sept. 21, 2001] (a) This section contains requirements for test rigs used in approval testing of separators. A diagram of a typical test rig is shown in Figure 162.050–17(a). (b) Each mixture pump on a test rig must— (1) Be a centrifugal pump capable of operating at one thousand (1,000) revolutions per minute or more; (2) Have a delivery capacity of at least one and one half (1.5) times the maximum throughput at which the separator being tested is designed to operate; (3) Have a maximum delivery pressure that is equal to or greater than the maximum influent pressure at which the separator is designed to operate; and (4) Have either bypass piping to its suction side or a throttle valve or orifice on its discharge side. (c) The inlet piping of the test rig must be sized so that— (1) Influent water flows at a Reynolds Number of at least ten thousand; (2) The influent flow rate is between one and three meters per second; and (3) Its length is at least twenty (20) times its inside diameter. (d) Each sample point on a test rig must meet the design requirements described in Figure 162.050–17(e) and must be in a vertical portion of the test rig piping. (a) This section contains requirements for test rigs used in approval testing of monitors and bilge alarms. A typical test rig is described in Figure 162.050–19. The mixture pipe shown in Figure 162.050–19 is the portion of test rig piping between the oil injection point and the monitor or bilge alarm piping. (b) Each sample point on a test rig must be of the type described in Figure 162.050–17(e) and must be in a vertical portion of the test rig piping. (c) Each test rig must have a centrifugal pump that is designed to operate at one thousand (1,000) revolutions per minute or more. (d) The mixture pipe on a test rig must have a uniform inside diameter. (a) A separator must be designed to operate in each plane that forms an angle of 22.5° with the plane of its normal operating position. (b) The electrical components of a separator that are to be installed in an explosive atmosphere must be approved by an independent laboratory as components that Underwriters Laboratories Standard 913 (dated April 8, 1976) defines as intrinsically safe for use in a Class I, Group D hazardous location. (c) Each separator component that is a moving part must be designed so that its movement during operation of the separator does not cause formation of static electricity. (d) Each separator must be designed in accordance with the applicable requirements in subchapters F and J of this chapter. (e) Each separator must be designed to be operated both automatically and manually. Each separator to be installed in an unattended machinery space must be capable of operating automatically for at least twenty-four (24) hours. (f) Each separator must be designed so that adjustments to valves or other equipment are not necessary to start it. (g) Each part of a separator that is susceptible to wear and tear must be readily accessible for maintenance in its installed position. (h) A separator must be designed so that it does not rely in whole or in part on dilution of influent mixtures as a means of performing its function. (a) Test Conditions. (1) Each test described in this section must be performed at a throughput and influent pressure equal to the maximum throughput and pressure at which the separator being tested is designed to operate. The tests and each of the steps in the tests must be carried out in the order described in this section. Each test must be performed without time delay between steps in the test. (2) Except as provided in Test No. 6S, the influent oil used in each test must be a heavy fuel oil that has a relative density of approximately 0.94 at 15 °C and a viscosity of at least 220 centistokes (approximately 900 seconds Redwood No. 1) at 37.8 °C. (3) A test rig of the type described in §162.050–17 must be used in performing each test. (4) If a separator has a supply pump, it must be tested using that pump. If a separator does not have a supply pump, it must be tested using the mixture pump on the test rig. (5) The influent water used in each test must be clean fresh water or clean fresh water in solution with sodium chloride. The water or solution must have a relative density at 15 °C that is equal to or less than 0.085 plus the relative density of the heavy fuel oil used in the tests. (6) Each test must be conducted at an ambient temperature of between 10 °C and 30 °C. (7) The oil content of each sample must be measured using the method described in §162.050–39. (8) Influent oil content must be determined during testing by measuring the flow rates of the oil and water that are mixed to form the influent or by use of an oil content meter on the inlet piping of the test rig. If an oil content meter is used, a sample of influent and a meter reading must be taken at the beginning of each test. If the meter reading is not within ±10 percent of the oil content of the sample, the meter readings subsequently taken during the test are unacceptable test results. (9) When collecting a sample at a sample point that has a stop cock, the first minute of fluid flow through the stop cock must not be included in the sample collected. (10) In each test, the separator must be operated in accordance with the procedures described in its instruction manual. (11) No maintenance, including replacement of parts, may be performed on a separator during or between the tests described in this section. (12) A one (1) liter sample of each oil to be used in testing must be taken and provided for use in the sample analysis required by §162.050–39 . (13) The separator may not be operated manually in Test No. 5S. (b) Test No. 1S. The separator is filled with water and started. It is fed with oil for at least five (5) minutes and then with an oil-water influent containing an oil content of between 5,000 and 10,000 p.p.m. until a steady flow rate occurs. After the flow rate is steady, the influent is fed to the separator for thirty (30) minutes. Samples of separated water effluent are taken after the first ten (10) and twenty (20) minutes. At the end of the thirty (30) minute period, the air cock on the test rig is opened and, if necessary, the oil and water supply valves are closed to stop the flow of influent. A sample is then taken of the separated water effluent as the effluent flow ceases. (c) Test No. 2S. Test No. 1S is repeated using an influent containing approximately 25 percent oil and 75 percent water. (d) Test No. 3S. The separator is fed with oil until oil is discharged at the oil discharge outlet of the separator at essentially the same rate that oil is being fed to the separator. The separator is then fed with oil for five (5) additional minutes. If any oily mixture is discharged from the separated water outlet on the separator during the test, that observation is recorded. (e) Test No. 4S. The separator is fed with water for fifteen (15) minutes. Samples of the separated water effluent are taken at the beginning of the test and after the first ten (10) minutes. (f) Test No. 5S. The separator is operated automatically for three (3) hours. During the test, the separator is continuously fed with an influent varying from water to a mixture of 25 percent oil in water and back to water every fifteen (15) minutes. The oil concentration in the influent is varied in at least five (5) equal increments during each fifteen (15) minute period and the time intervals between the incremental changes are equal. During the last hour, the separator must be inclined at an angle of 22.5° with the plane of its normal operating position. During the last time increment in which the unit is fed a 25 percent oil mixture, a sample of the separated water effluent is taken. If the separator stops at any time during this test, that observation is recorded. (g) Test No. 6S. Tests No. 1S and No. 2S are repeated using, in lieu of a heavy fuel oil in the influent, a light distillate fuel oil having a relative density of approximately 0.83 at 15 °C. (a) This section contains requirements that apply to cargo monitors. (b) Each monitor must be designed so that it is calibrated by a means that does not involve manually mixing a known quantity of oil and a known quantity of water to form a mixture and manually feeding the mixture into the monitor. (c) The electrical components of a monitor that are to be installed in an explosive atmosphere must be approved by an independent laboratory as components that Underwriters Laboratories Standard 913 (dated April 8, 1976) defines as intrinsically safe for use in a Class I, Group D hazardous location. (d) Each monitor component that is a moving part must be designed so that its movement during operation of the monitor does not cause formation of static electricity. (e) A monitor must be designed to operate in each plane that forms an angle of 22.5° with the plane of its normal operating position. (f) Each monitor must be designed in accordance with the applicable requirements contained in subchapters F and J of this chapter. (g) Each monitor must be designed so that it records each change in oil content of the mixture it is measuring within twenty (20) seconds after the change occurs. (h) Each monitor must have a device that produces a warning signal and a signal that can be used to actuate valves in a vessel's fixed piping system, when— (1) The oil content of the mixture being measured exceeds the concentration limit set by the operator of the monitor; and (2) Malfunction, breakdown, or other failure of the monitor occurs. (i) Each monitor must have a means to determine whether it is accurately calibrated. [44 FR 53359, Sept. 13. 1079, as amended by CGD 76–088c, 48 FR 45727, Oct. 6, 1983] (a) This section contains requirements that apply to cargo monitors. (b) Test conditions. (1) The tests and each step in the tests must be carried out in the order described in this section. Each test must be performed without time delay between steps in the test. (2) A test rig of the type described in §162.050–19 must be used in performing each test. (3) Each mixture used during the tests must be prepared by combining oil supplied from the oil injection pipe of the test rig and water supplied from the mixture tank of the test rig. However, if the flow of oil through the oil injection pipe becomes intermittent, oil and water may be combined in the mixture tank to form the mixture. (4) A mixture may be circulated through a monitor only once during testing. (5) Unless otherwise provided in a specific test, the water used in each test must be clean, fresh water. (6) The oil used in each test, except Test No. 2CM, must be Arabian light crude oil. (7) Each test must be performed at an ambient temperature of between 10 °C and 30 °C. (8) Unless otherwise provided in a specific test, each test must be performed at the maximum mixture pressure, the maximum flow rate, and the power supply ratings at which the monitor is designed to operate. (9) The particulate contaminant described in Table 162.050–27(g) must be of a type that does not lose more than three (3) percent of its weight after ignition and must be insoluble in a 500 p.p.m. mixture. (10) In each test the monitor must be operated in accordance with the procedures described in its instructions manual. (11) Unless otherwise provided in a specific test, the centrifugal pump shown in Figure 162.050–19 must be operated at one thousand (1,000) revolutions per minute or more in each test. (12) Whenever the oil content of a mixture is recorded, a sample of the mixture must also be taken. The oil content of the sample must be measured using the method described in §162.050–39. (13) A one (1) liter sample of each oil to be used in testing must be taken and provided for use in the sample analysis required by §162.050–39. (c) Test No. 1CM. The cargo monitor is calibrated and zeroed. It is then fed with water for 15 minutes and then with mixtures in the following concentrations: 15 p.p.m., 50 p.p.m., 100 p.p.m., and each additional concentration, in increments of 50 p.p.m. up to the highest oil concentration that can be read on the monitor. Each mixture is fed to the monitor in the order listed for fifteen (15) minutes. Water is fed to the monitor for a (15) minute period between each mixture. At the end of each (15) minute period, an oil content reading is obtained and recorded. (d) Test No. 2CM. (1) If the cargo monitor is designed for use with crude oils, it is fed with a mixture of water and the first oil listed in Table 162.050–27(d) at the following concentrations: 15 p.p.m., 100 p.p.m., and a concentration that is ninety (90) percent of the highest oil concentration in water that can be read on the monitor. Each concentration is fed to the monitor in the order listed until a steady reading occurs and is recorded. After each steady reading is recorded, the monitor is fed with water for fifteen (15) minutes. At the end of each fifteen (15) minute period of feeding the monitor with water, an oil content reading is again obtained and recorded. (2) The steps described in paragraph (d)(1) of this section are repeating using each of the other oils listed in Table 162.050–27(d). (3) If any oil listed in Table 162.050–27(d) is unavailable, an oil with similar properties may be substituted in testing. (4) If the monitor is to be used with refined oil products, the steps described in paragraph (d)(1) of this section are performed using each of the following: (i) Leaded regular grade automotive gasoline. (ii) Unleaded automotive gasoline. (iii) Kerosene. (iv) Light diesel or No. 2 fuel oil. (e) Test No. 3CM. (1) The cargo monitor is fed with water, zeroed, and then fed with a 100 p.p.m. mixture. The time at which the monitor first detects oil in the mixture, the times of reading 63 p.p.m. and 90 p.p.m., and the time of reaching the highest steady reading of oil content are recorded. The oil content of the mixture at the highest steady reading is also recorded. (2) The metering pump is turned off and the time at which the highest reading starts to decrease, the times of reading 37 p.p.m. and 10 p.p.m., and the time of returning to the lowest steady oil content reading are recorded. The oil content of the mixture at the lowest steady reading is also recorded. (3) The time interval between first detecting oil in the mixture and reading 63 p.p.m., and the time interval between the first decrease in the highest reading and reading 37 p.p.m., are averaged and recorded as the response time for the monitor. (f) Test No. 4CM. (1) The cargo monitor is fed with water, zeroed, and then fed with a mixture containing ten (10) percent oil for one (1) minute. The following times occurring during this procedure are recorded: (i) Time at which the monitor first detects oil. (ii) Time of reading 100 p.p.m. (iii) Time of exceeding the highest oil concentration that can be read on the monitor. (iv) Time of returning to the highest oil concentration that can be read on the monitor. (v) Time of returning to a reading of 100 p.p.m. (vi) Time of returning to the lowest steady oil content reading. (2) The oil content of the mixture at the lowest steady reading described in paragraph (f)(1)(vi) of this section is recorded. (3) The monitor is fed with water, zeroed, and then fed with oil for one (1) minute after which the flow of water is resumed. The times described in paragraph (f)(1) of this section are recorded. (4) The monitor is fed with a 100 p.p.m. mixutre until a steady oil content reading is obtained and recorded. (g) Test No. 5CM. (1) The cargo monitor is fed with a 500 p.p.m. mixture until a steady reading is obtained and recorded. (2) The monitor is fed with a 500 p.p.m. mixture to which enough sodium chloride has been added to provide a concentration of 60,000 parts per million of sodium chloride in water. The oil content reading, when steady, is recorded. (3) The monitor is fed with a 500 p.p.m. mixture to which enough of the contaminant described in Table 162.050–27(g) has been added to provide a concentration of 100 parts per million of particulate contaminant in water. The oil content reading, when steady, is recorded. (h) Test No. 6CM. (1) The cargo monitor is fed with a 100 p.p.m. mixture until a steady oil content reading is obtained and recorded. (2) The monitor is fed with a 100 p.p.m. mixture that has first passed through the centrifugal pump of the test rig. The pump is run at one fourth ( (3) The steps described in paragraph (h)(2) of this section are repeated with the pump running at one-half ( (i) Test No. 7CM. (1) The steps described in paragraph (h)(1) of this section are repeated. (2) The temperature of the mixture is adjusted to 10 °C and the flow continued until a steady oil content reading is obtained and recorded. (3) The steps described in paragraph (i)(2) of this section are repeated with the temperature of the mixture at 65 °C or the highest mixture temperature at which the cargo monitor is designed to operate, whichever is lower. (j) Test No. 8CM. (1) The steps described in paragraph (h)(1) of this section are repeated. (2) If the monitor has a positive displacement mixture pump, the mixture pressure is lowered to one half of the monitor's maximum design pressure. If the monitor has a centrifugal mixture pump, or is not equipped with a mixture pump, the mixture flow rate is reduced to one-half of the monitor's design flow rate. The reduced flow rate or mixture pressure is maintained until a steady oil content reading is obtained and recorded. (3) If the monitor has a positive displacement mixture pump, the mixture pressure is increased to twice the monitor's design pressure. If the monitor has a centrifugal mixture pump or does not have a mixture pump, the mixture flow rate is increased to twice the monitor's maximum design flow rate. The increased flow rate or mixture pressure is maintained until a steady oil content reading is obtained and recorded. (k) Test No. 9CM. (1) The steps described in paragraph (h)(1) of this section are repeated. (2) The water and metering pumps on the test rig are stopped for eight (8) hours after which the steps described in paragraph (h)(1) of this section are repeated. (l) Test No. 10CM. (1) The supply voltage to the cargo monitor is increased to one hundred and ten (110) percent of its design supply voltage. The monitor is then fed a 100 p.p.m. mixture for one (1) hour. At the end of the one (1) hour period, an oil content reading is obtained and recorded. (2) The steps described in paragraph (l)(1) of this section are repeated with the supply voltage to the monitor lowered to ninety (90) percent of its design supply voltage. (3) Upon completing the steps described in paragraph (l)(2) of this section, the supply voltage to the monitor is returned to the design rating. (4) The steps described in paragraphs (l)(1), (l)(2), and (l)(3) of this section are repeated varying each other power supply to the monitor in the manner prescribed in those steps for supply voltage. (m) Test No. 11CM. (1) The monitor is calibrated and zeroed. (2) The steps described in paragraph (h)(1) of this section are repeated. (3) A 100 p.p.m. mixture is fed to the monitor for eight (8) hours. At the end of the eight (8) hour period, an oil content reading is obtained and recorded. (4) The monitor is fed with water until a steady oil content reading is obtained and recorded. (n) Test No. 12CM. (1) All power to the monitor is shut off for one (1) week. After one week the monitor is started, zeroed, and calibrated. (2) The monitor is fed with a 100 p.p.m. mixture for one (1) hour. An oil content reading is then obtained and recorded. (3) The monitor is fed with water for one (1) hour. An oil content reading is then obtained and recorded. (4) The steps described in paragraphs (n)(2) and (n)(3) of this section are repeated three (3) additional times. During the last hour in which the monitor is fed with a 100 p.p.m. mixture, the monitor is inclined at an angle of 22.5° with the plane of its normal operating position. (a) This section contains requirements that apply to bilge monitors. (b) Each bilge monitor must be designed to meet the requirements of this section and the requirements for a cargo monitor in §§162.050–25 (b) through (g) and §162.050–25(i). (c) Each bilge monitor must have— (1) A device that produces a warning signal, and a signal that can be used to actuate stop valves in a vessel's fixed piping system, when the oil content of the mixture being measured exceeds 15 p.p.m. ±5 p.p.m.; (2) A device that produces a warning signal, and a signal that can be used to actuate stop valves in a vessel's fixed piping system, when the oil content of the mixture being measured exceeds 100 p.p.m. ±20 p.p.m.; and (3) A device that produces a warning signal, and a signal that can be used to actuate stop valves in a vessel's fixed piping system, when malfunction, breakdown, or other failure of the bilge monitor occurs. (d) Each bilge monitor must have a device that is designed to record continuously the concentration of oil in p.p.m. that the monitor measures and to record the date and time of the measurements. The record must be durable enough to be kept for three (3) years. If the device has more than one scale, it must have a means to show on the record the scale in use at the time of the reading. (a) This section contains requirements that apply to bilge monitors. (b) Test conditions. (1) Each test must be conducted under the conditions prescribed in this section and under the conditions prescribed for cargo monitors in §§162.050–27 (b)(1) through (b)(4) and §§162.050–27 (b)(7) through (b)(13). (2) Except as provided in Test No. 2BM, the oil used in each test must be a heavy fuel oil that has a relative density of approximately 0.94 at 15 °C. and a viscosity of at least 220 centistokes (approximately 900 seconds Redwood No. 1) at 37.8 °C. (3) The water used in each test must be clean fresh water or clean fresh water in solution with sodium chloride. The water must have a relative density at 15 °C. that is equal to or less than 0.085 plus the relative density of the heavy fuel oil used in the tests. (c) Test No. 1BM. (1) The bilge monitor is calibrated and zeroed. It is then fed with water for 15 minutes and then with mixtures in the following concentrations: 15 p.p.m., 50 p.p.m., 75 p.p.m., 100 p.p.m., and each additional concentration, in increments of 25 p.p.m. up to the highest oil concentration that can be read on the monitor. Each concentration is fed to the monitor in the order listed for fifteen (15) minutes. Water is fed to the monitor for fifteen (15) minutes between each mixture. At the end of each fifteen (15) minute period an oil content reading is obtained and recorded. (2) The metering and water pumps of the test rig are started and the oil content of the mixture is increased until the device required by §162.050–29(c)(1) actuates. The oil content of the mixture causing actuation is recorded. (3) The oil content of the mixture is then increased until the device required by §162.050–29(c)(2) actuates. The oil content of the mixture causing actuation is recorded. (d) Test No. 2BM. Test No. 1BM is repeated using, in lieu of a heavy fuel oil in the mixture, a light distillate fuel oil having a relative density of approximately 0.83 at 15 °C. (e) Test No. 3BM. (1) The bilge monitor is fed with water, zeroed, and then fed with a 15 p.p.m. mixture until a steady reading is obtained and recorded. The time of first detecting oil in the mixture and the time of reaching the highest steady reading of oil content are also recorded. The metering pump is turned off after the highest steady reading is obtained. The time at which the highest steady reading starts to decrease and the time of returning to the lowest steady oil content reading are recorded. The oil content of the lowest steady reading is also recorded. (2) The steps in paragraph (l) of this section are repeated using a 100 p.p.m. mixture. (f) Test No. 4BM. (1) The bilge monitor is fed with water, zeroed, and then fed with a mixture containing (10) percent oil for one (1) minute. The following times occurring during this procedure are recorded: (i) Time at which the monitor first detects oil. (ii) Time of actuation of the device required by §162.050–29(c)(1). (iii) Time of actuation of the device required by §162.050–29(c)(2). (iv) Time of exceeding the highest oil concentration that can be read on the monitor. (v) Time of returning to the highest oil concentration that can be read on the monitor. (vi) Time of returning to the lowest steady oil content reading. (2) The oil content of the mixture at the lowest steady reading described in paragraph (f)(1)(vi) of this section is recorded. (3) The monitor is fed with water, zeroed, and then fed with oil for one (1) minute after which the flow of water is resumed. The times described in paragraph (f)(1) of this section are recorded. (4) The monitor is fed with a 15 p.p.m. mixture until a steady oil content reading is obtained and recorded. (5) The monitor is fed with a 100 p.p.m. mixture until a steady oil content reading is obtained and recorded. (g) Test No. 5BM. (1) The bilge monitor is fed with an 80 p.p.m. mixture until a steady reading is obtained and recorded. (2) The monitor is fed with an 80 p.p.m. mixture to which enough sodium chloride has been added to provide a concentration of 60,000 parts per million of sodium chloride in water. The oil content reading, when steady, is recorded. (3) The monitor is fed with an 80 p.p.m. mixture to which enough of the contaminant described in Table 162.050–27(g) has been added to provide a concentration of 20 parts per million of particulate contaiminant in water. The oil content reading, when steady, is recorded. (h) Test No. 6BM. (1) The bilge monitor is fed with a 5–10 p.p.m. mixture until a steady reading is obtained and recorded. (2) If the monitor has a positive displacement mixture pump, the mixture pressure is lowered to one half of the monitor's maximum design pressure. If the monitor has a centrifugal mixture pump or is not equipped with a mixture pump, the mixture flow rate is reduced to one half of the monitor's maximum design flow rate. After reduction of the pressure or flow rate, the oil content of the mixture is increased until the device required by §162.050–29(c)(1) actuates. The oil content causing actuation is recorded. (3) The monitor is fed with an 80 p.p.m. mixture until a steady reading is obtained and recorded. The oil content of the mixture is then increased until the device required by §162.050–29(c)(2) actuates. The oil content causing actuation is recorded. (4) If the monitor has a positive displacement mixture pump, the mixture pressure is increased to twice the monitor's maximum design pressure. If the monitor has a centrifugal mixture pump or if the monitor is not equipped with a mixture pump, the mixture flow rate is increased to twice the monitor's maximum design flow rate. After increasing the pressure or flow rate, the oil content of the mixture is increased until the device required by §162.050–29(c)(1) actuates. The oil content causing actuation is recorded. (5) The steps described in paragraph (h)(3) of this section are repeated. (i) Test No. 7BM. (1) The steps described in paragraphs (c)(2) and (c)(3) of this section are repeated. (2) The water and metering pumps on the test rig are stopped for eight (8) hours after which the steps described in paragraphs (c)(2) and (c)(3) of this section are repeated. (j) Test No. 8BM. (1) The supply voltage to the bilge monitor is increased to one hundred and ten (110) percent of its design supply voltage. The monitor is then fed a 10 p.p.m. mixture for one (1) hour. At the end of the one (1) hour period, the oil content reading is recorded. (2) The oil content of the mixture is increased until the device required by §162.050–29(c)(1) actuates. The oil content causing actuation is recorded. (3) The bilge monitor is fed with an 80 p.p.m. mixture for one (1) hour. At the end of the one (1) hour period, an oil content reading is obtained and recorded. (4) The oil content of the mixture is increased until the device required by §162.050–29(c)(2) actuates. The oil content causing actuation is recorded. (5) The steps described in paragraphs (j)(1) through (j)(4) of this section are repeated with the supply voltage to the bilge monitor lowered to ninety (90) percent of its design voltage. (6) Upon completing the steps described in paragraph (j)(5) of this section, the supply voltage to the monitor is returned to the design rating. (7) The steps described in paragraphs (j)(1) through (j)(4) of this section are repeated varying each other power supply to the monitor in the manner prescribed in those steps for supply voltage. (k) Test No. 9BM. (1) The steps described in paragraphs (c)(2) and (c)(3) of this section are repeated. (2) An 80 p.p.m. mixture is fed to the bilge monitor for eight (8) hours. At the end of the eight (8) hour period, an oil content reading is obtained and recorded. (3) The steps described in paragraphs (c)(2) and (c)(3) of this section are repeated. (4) The monitor is fed with water until a steady reading is obtained and recorded. (l) Test No. 10BM. (1) All power to the bilge monitor is shut off for one (1) week. After one week the monitor is started, zeroed, and calibrated. (2) The monitor is fed with an 80 p.p.m. mixture for one (1) hour. An oil content reading is then obtained and recorded. (3) The steps described in paragraphs (c)(2) and (c)(3) of this section are repeated. (4) The monitor is fed with water for one (1) hour. An oil content reading is then obtained and recorded. (5) The steps described in paragraphs (l)(2), (l)(3), and (l)(4) of this section are repeated three (3) additional times. During the last time that the step described in paragraph (i)(2) of this section is repeated, the monitor is inclined at an angle of 22.5° with the plane of its normal operating position. (a) This section contains requirements that apply to bilge alarms. (b) Each bilge alarm must be designed to meet the requirements for a cargo monitor in §§162.050–25(b) through (g), §162.050–25(i), and the requirements in this section. (c) Each bilge alarm must have a device that produces a warning signal, and a signal that can be used to actuate stop valves in a vessel's fixed piping system, when— (1) the oil content of the mixture being measured by the bilge alarm exceeds 15 p.p.m. ±5 p.p.m., and (2) malfunction, breakdown, or other failure of the bilge alarm occurs. (a) This section contains requirements that apply to bilge alarms. (b) Test Conditions. (1) Each test must be conducted under the conditions prescribed for cargo monitors in §§162.050–27 (b)(1) through (b)(5), §§162.050–27 (b)(7), (b)(8), (b)(10), (b)(11), and (b)(13). (2) Each test must be performed using a light distillate fuel oil having a relative density of approximately 0.83 at 15 °C. (3) The oil content of each sample must be measured using the method described in §162.050–39. (c) Test No. 1A. The bilge alarm is calibrated and zeroed. The metering and water pumps of the test rig are started and the oil content of the mixture is increased until the alarm actuates. A sample of the mixture causing actuation of the alarm is taken. The alarm is then fed with water for fifteen (15) minutes. (d) Test No. 2A. (1) The bilge alarm is fed with a 40 p.p.m mixture until the bilge alarm actuates. The time of turning on the metering pump of the test rig and the time of alarm actuation are recorded. The flow rate on the flow meter of the test rig is also recorded. (2) The response time of the alarm is calculated as follows:
T2=time of alarm actuation T1=time of turning on the metering pump of the test rig D=inside diameter of the mixture pipe (cm) L=length of the mixture pipe (cm) Q=flow rate (cm3 /sec) (e) Test No. 3A. (1) The metering and water pumps of the test rig are started and the oil content of the mixture is increased until the bilge alarm actuates. A sample of the mixture causing actuation of the alarm is taken. (2) If the alarm has a positive displacement mixture pump, the mixture pressure is reduced to one-half ( (3) If the alarm has a positive displacement mixture pump, the influent pressure is increased to twice the alarm's minimum design pressure. If the alarm has a centrifugal mixture pump or if the alarm is not equipped with a mixture pump, the influent flow rate is increased to twice the alarm's maximum design flow rate. After increasing the pressure or flow rate, the oil content in the mixture is increased until the alarm actuates. A sample of the mixture causing actuation is taken. (f) Test No. 4A. (1) The steps described in paragraph (e)(1) of this section are repeated. (2) The metering and water pumps of the test rig are stopped for eight (8) hours. (3) The metering and water pumps are started and the oil content of the mixture is increased until the bilge alarm actuates. A sample of the mixture causing actuation is taken. (g) Test No. 5A. (1) The supply voltage to the bilge alarm is raised to one-hundred ten (110) percent of its design supply voltage. The oil content of the mixture is then increased until the alarm actuates. A sample of the mixture causing actuation is taken. (2) The supply voltage to the alarm is lowered to ninety (90) percent of its design suppy voltage. The oil content of the mixture is then increased until the alarm actuates. A sample of the mixture causing actuation is taken. (3) Upon completion of the steps described in paragraph (g)(2) of this section, the supply voltage to the alarm is returned to its design value. (4) The steps described in paragraphs (g)(1), (g)(2), and (g)(3) of this section are repeated varying each other power supply to the alarm in the manner prescribed in those steps for supply voltage. (h) Test No. 6A. (1) The steps described in paragraph (e)(1) of this section are repeated. (2) The bilge alarm is fed with a 5 to 10 p.p.m. mixture for eight (8) hours. After eight (8) hours the oil content of the mixture is then increased until the alarm actuates. A sample of the mixture causing actuation is taken. (i) Test No. 7A. (1) All power to the bilge alarm is shut off for one (1) week. After one (1) week the alarm is then started, zeroed, and calibrated. (2) The steps described in paragraph (e)(1) of this section are repeated. Water is then fed to the monitor for one (1) hour. (3) The steps described in paragraph (i)(2) are repeated seven (7) additional times. During the last hour, the alarm must be inclined at an angle of 22.5° with the plane of its normal operating position. (a) Equipment submitted for Coast Guard approval must first be tested under the conditions prescribed in paragraph (b) of this section. The test must be performed at an independent laboratory that has the equipment to subject the item under test to the vibrating frequencies and amplitudes prescribed in paragraph (b) of this section. The test report submitted with the application for Coast Guard approval must be prepared by the laboratory and must contain the test results. (b) Each monitor and bilge alarm and each control of a separator must be subjected to continuous sinusoidal vibration in each of the following directions for a 4 hour period in each direction: (1) Vertically up and down. (2) Horizontally from side to side. (3) Horizontally from end to end. The vibrating frequency must be 80Hz, except that the vibrating frequency of equipment that has a resonant frequency between 2Hz and 80Hz must be the resonant frequency. If the vibrating frequency is between 2Hz and 13.2Hz, the displacement amplitude must be ±1mm. If the vibrating frequency is between 13.2Hz and 80 Hz, the acceleration amplitude must be ±[(.7)(gravity)]. (a) Scope. This section describes the method and apparatus to be used in measuring the oil content of a sample taken in approval testing of each separator, monitor, or alarm. Light oil fractions in the sample, with the exception of volatile components lost during extractions, are included in each measurement. (b) Summary of method. Each sample is acidified to a low pH and extracted with two volumes of solvent. The oil content of the sample is determined by comparison of the infrared absorbance of the sample extract against the absorbance of known concentrations of a reference oil in solvent. (c) Apparatus. The following apparatus is used in each measurement: (1) Separatory funnel that is 1000 ml. or more in volume and that has a Teflon stopcock. (2) Infrared spectrophotometer. (3) A cell of 5 mm. pathlength that has sodium chloride or infrared grade quartz with a minimum of 80 percent transmittance at 2930 cm−1. (This cell should be used if the oil content of the sample to be measured is expected to have a concentration of between 2 p.p.m. and 80 p.p.m.) (4) A cell of pathlength longer than 5 mm. that has sodium chloride or infrared grade quartz with a minimum of 80 percent transmittance at 2930 cm−1. (This cell should be used if the oil content of the sample to be measured is expected to have a concentration of between 0.1 p.p.m. and 2 p.p.m.) (5) Medium grade filter paper. (6) 100 ml. glass stoppered volumetric flasks. (d) Reagents. The following regaents are used in each measurement: (1) Hydrochloric acid prepared by mixing equal amounts of concentrated, reagent grade hydrochloric acid and distilled water. (2) Reagent grade sodium chloride. (3) One of the following solvents: (i) Spectrographic grade carbon tetrachloride. (ii) Reagent grade Freon 113, except that this solvent may not be used to analyze samples in approval testing of cargo monitors. (Ucon 113, Genatron 113, or an equivalent fluorocarbon solvent are also acceptable.) (4) Reference oil, which is the oil used in the portion of the test during which the sample is collected. (5) Stock reference standard prepared by weighing 0.30 g. of reference oil in a tared 100 ml. volumetric flask and diluting to 100 ml. volume with solvent. (e) Preparation of calibration standards. A series of dilutions is prepared by pipetting volumes of stock reference standard into 100 ml. volumetric flasks and diluting to volume with solvent. A convenient series of volumes of the stock reference standard is 5, 10, 15, 20, and 25 ml. The exact concentrations of the dilutions in milligrams of oil per 100 milliliters of diluted stock reference standard are calculated. The calibration standards are the dilutions. (f) Extraction. (1) A reagent blank is carried through each step described in this paragraph and paragraph (g) of this section. (2) The pH of each sample is checked by dipping a glass rod into the sample and touching the rod with pH-sensitive paper to ensure that the pH is 2 or lower. More acid is added if necessary until the pH is 2 or lower. The glass rod is then rinsed in the sample bottle with solvent. (3) The sample is poured into a separatory funnel and 5 g. of sodium chloride are added. (4) Fifty (50) ml. of solvent are added to the sample bottle. The bottle is capped tightly and shaken thoroughly to rinse its inside. The contents of the bottle are then transferred to the separatory funnel containing the sample and extracted by shaking vigorously for 2 minutes. The layers are allowed to separate. (5) The solvent layer is drained through a funnel containing solvent moistened filter paper into a 100 ml. volumetric flask. (6) Fifty (50) ml. of solvent are added to the sample bottle. The bottle is capped tightly and shaken thoroughly to rinse its inside surface. The contents of the bottle are then transferred to the separatory funnel containing the water layer of the sample. The contents of the separatory funnel are then extracted by shaking vigorously for 2 minutes. The layers are allowed to separate. The solvent layer is then drained through a funnel containing solvent moistened filter paper into the volumetric flask containing the solvent layer of the sample. (7) The tips of the separatory funnel, filter paper, and funnel are rinsed with small portions of solvent and the rinsings are collected in the volumetric flask containing the solvent layer of the sample. The volume is adjusted with solvent up to 100 ml. The flask is then stoppered and its contents are thoroughly mixed. (8) The water layer remaining in the separatory funnel is drained into a 1000 ml. graduated cylinder and the water volume estimated to the nearest 5 ml. (g) Infrared spectroscopy. (1) The infrared spectrophotometer is prepared according to manufacturer instructions. (2) A cell is rinsed with two volumes of the solvent layer contained in the volumetric flask. The cell is then completely filled with the solvent layer. A matched cell containing solvent is placed in the reference beam. (3) If a scanning spectrophotometer is used, the solvent layer in the cell and the calibration standards are scanned from 3200 cm−1 to 2700 cm−1. If a single beam or non-scanning spectrophotometer is used, the manufacturer's instructions are followed and the absorbance is measured at or near 2930 cm−1. (4) If the scan is recorded on absorbance paper, a straight baseline of the type described in Figure 162.050–39(g) is constructed. To obtain the net absorbance, the absorbance of the baseline at 2930 cm−1 is subtracted from the absorbance of the maximum peak on the curve at 2930 cm−1. (5) If the scan is recorded on transmittance paper, a straight baseline is constructed on the hydrocarbon band plotted on the paper. The net absorbance is: (6) A plot is prepared for net absorbance vs. oil content of the calibration standards or of the percentages of stock reference standard contained in the calibration standards. (7) If the net absorbance of a sample determined by the calibration plot exceeds 0.8 or the linear range of the spectrophotometer, a dilution of the solvent layer contained in the volumetric flask after completing the step described in paragraph (f)(7) of this section is prepared by the pipetting an appropriate volume of the solvent layer into a second volumetric flask and diluting to volume with solvent. If the net absorbance is less than 0.1 when determined in accordance with the procedures in this paragraph, it is recalculated using a longer pathlength cell. (h) Calculations. (1) The plot described in paragraph (g)(6) of this section is used to determine the milligrams of oil in each 100 ml. of solvent layer contained in the volumetric flask after completing the steps described in paragraph (f) or paragraph (g)(7) of this section. (2) The oil content of the sample is calculated using the following formula: oil content of sample=R×D×1000/V
R = mg. of oil in 100 ml. of solvent layer determined from plot. D = 1 or, if the step described in paragraph (g)(7) of this section is performed, the ratio of the volume of the second volumetric flask described in that paragraph to the volume of solvent layer pipetted into the second volumetric flask. V = The volume of water in milliliters drained into the graduated cylinder at the step described in paragraph (f)(8) of this section. (3) The results are reported to two significant figures for oil contents below 100 mg/l and to three significant figures for oil contents above 100 mg/l. The results are converted to p.p.m.
Title 46: Shipping
PART 162—ENGINEERING EQUIPMENT
Subpart 162.050—Pollution Prevention Equipment
§ 162.050-1 Scope.
§ 162.050-3 Definitions.
§ 162.050-4 Documents incorporated by reference.
§ 162.050-5 Contents of application.
§ 162.050-7 Approval procedures.
§ 162.050-9 Test report.
§ 162.050-11 Marking.
§ 162.050-13 Factory production and inspection.
§ 162.050-14 Sample collection and preservation.
§ 162.050-15 Designation of facilities.
§ 162.050-17 Separator test rig.
§ 162.050-19 Monitor and bilge alarm test rig.
§ 162.050-21 Separator: Design specification.
§ 162.050-23 Separator: Approval tests.
§ 162.050-25 Cargo monitor: Design specification.
§ 162.050-27 Cargo monitor: Approval tests.
Table 162.050-27(d)_Oil Type and Characteristics------------------------------------------------------------------------ Oil type Characteristics------------------------------------------------------------------------1. Sahara blend crude oil.......... Density_low. Viscosity_low. Pour point_very low. Producing country_Algeria. General description_mixed base.2. Arabian light crude oil......... Density_medium. Viscosity_medium. Pour point_low. Producing country_Saudi Arabia. General description_mixed base.3. Nigerian medium crude oil....... Density_high. Viscosity_medium. Pour point_low. Producing country_Nigeria. General description_naphthenic base.4. Bachaquero 17 crude oil......... Density_very high. Viscosity_very high. Pour point_low. Producing country_Venezuela. General description_asphaltic base.5. Minas crude oil................. Density_medium. Viscosity_high. Pour point_very high. Producing country_Indonesia. General description_paraffinic base.6. Residual fuel oil............... Bunker C or No. 6 Fuel Oil.------------------------------------------------------------------------
Table 162.050-27(g)_Insoluble Particulate Contaminant; Physical Description------------------------------------------------------------------------ ------------------------------------------------------------------------Particle sizes, microns: Percentage \1\ 0-5...................................................... 39±2 5-10..................................................... 18±3 10-20.................................................... 16±3 20-40.................................................... 18±3 40-80.................................................... 9±3------------------------------------------------------------------------\1\ By weight of particle size in contaminant.
§ 162.050-29 Bilge monitor: Design specification.
§ 162.050-31 Bilge monitor: Approval tests.
§ 162.050-33 Bilge alarm: Design specification.
§ 162.050-35 Bilge alarm: Approval tests.
§ 162.050-37 Vibration test.
§ 162.050-39 Measurement of oil content.
