46 C.F.R. § 162.050-14 Sample collection and preservation.
Title 46 - Shipping
(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.
Title 46: Shipping
PART 162—ENGINEERING EQUIPMENT
Subpart 162.050—Pollution Prevention Equipment
§ 162.050-14 Sample collection and preservation.
