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Electronic Code of Federal Regulations

e-CFR data is current as of January 23, 2020

Title 30Chapter ISubchapter BPart 27


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

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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.
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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.
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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.

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