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Electronic Code of Federal Regulations

e-CFR data is current as of February 20, 2020

Title 30Chapter ISubchapter BPart 27Subpart C → §27.37


Title 30: Mineral Resources
PART 27—METHANE-MONITORING SYSTEMS
Subpart C—Test Requirements


§27.37   Tests to determine adequacy of safety devices for bulbs.

The glass envelope of bulbs with the filament incandescent at normal operating voltage shall be broken in flammable methane-air or natural gas-air mixtures in a gallery to determine that the safety device will prevent ignition of the flammable mixtures.

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