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30 C.F.R. PART 27--METHANE-MONITORING SYSTEMS

TITLE 30--Mineral Resources

CHAPTER I--MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR

SUBCHAPTER B--TESTING, EVALUATION, AND APPROVAL OF MINING PRODUCTS

PART 27--METHANE-MONITORING SYSTEMS

Subpart A--GENERAL PROVISIONS

�27.1

Purpose.

�27.2

Definitions.

�27.3

Consultation.

�27.4

Application procedures and requirements.

�27.5

Letter of certification.

�27.6

Certification of components.

�27.7

Certification plate or label.

�27.8

[Reserved]

�27.9

Date for conducting tests.

�27.10

Conduct of investigations, tests, and demonstrations.

�27.11

Extension of certification.

�27.12

Withdrawal of certification.

Subpart B--CONSTRUCTION AND DESIGN REQUIREMENTS

�27.20

Quality of material, workmanship, and design.

�27.21

Methane-monitoring system.

�27.22

Methane detector component.

�27.23

Automatic warning device.

�27.24

Power-shutoff component.

Subpart C--TEST REQUIREMENTS

�27.30

Inspection.

�27.31

Testing methods.

�27.32

Tests to determine performance of the system.

�27.33

Test to determine explosion-proof construction.

�27.34

Test for intrinsic safety.

�27.35

Tests to determine life of critical components and subassemblies.

�27.36

Test for adequacy of electrical insulation and clearances.

�27.37

Tests to determine adequacy of safety devices for bulbs.

�27.38

Tests to determine adequacy of windows and lenses.

�27.39

Tests to determine resistance to vibration.

�27.40

Test to determine resistance to dust.

�27.41

Test to determine resistance to moisture.