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30 C.F.R. · Mineral Resources
30 C.F.R. § 27.38

Tests to determine adequacy of windows and lenses.

Title 30 C.F.R. ● ACTIVE Primary Source
Regulatory Text

30 C.F.R. § 27.38 — Tests to determine adequacy of windows and lenses.

§ 27.38 Tests to determine adequacy of windows and lenses. Impact tests. A 4-pound cylindrical weight with a one-inch diameter hemispherical striking surface will be dropped (free fall) to strike the window or lens in its mounting or the equivalent thereof at or near the center. At least three out of four samples shall withstand the impact according to the following table: Overall lens diameter (inches) Height of fall (inches) Less than 4 6 4 to 5 9 5 to 6 15 Greater than 6 24 Lenses or windows of smaller diameter than 1 inch may be tested by alternate methods at the discretion of MSHA.

Source: ecfr.gov · govinfo.gov — public domain Official Source ↗
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◈ Machine-Readable Provenance Record Root-LD v1.0 · boisestandard.org
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BS-CFR30-SEC-1DE4F8
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REGULATION / FEDERAL-CFR-SECTION
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boisestandard.org
Citation
30 C.F.R. § 27.38
Corpus
CFR — Code of Federal Regulations
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PRIMARY-SOURCE
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✓ TRUE
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e35113a5d52dab2d...
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The regulatory text of 30 C.F.R. § 27.38 is reproduced from the official Code of Federal Regulations as published by the Office of the Federal Register and the National Archives and Records Administration.
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Title 30 — Mineral Resources
30 C.F.R. § 1.130 C.F.R. § 1.230 C.F.R. § 1.330 C.F.R. § 3.130 C.F.R. § 5.1030 C.F.R. § 5.3030 C.F.R. § 5.4030 C.F.R. § 5.5030 C.F.R. § 6.130 C.F.R. § 6.230 C.F.R. § 6.1030 C.F.R. § 6.2030 C.F.R. § 6.3030 C.F.R. § 7.130 C.F.R. § 7.230 C.F.R. § 7.330 C.F.R. § 7.430 C.F.R. § 7.530 C.F.R. § 7.630 C.F.R. § 7.730 C.F.R. § 7.830 C.F.R. § 7.930 C.F.R. § 7.1030 C.F.R. § 7.2130 C.F.R. § 7.2230 C.F.R. § 7.2330 C.F.R. § 7.2430 C.F.R. § 7.2530 C.F.R. § 7.2630 C.F.R. § 7.27
30 C.F.R. — public domain ← All Legislation
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boisestandard.org → United States → Law → CFR → Title 30 → 30 C.F.R. § 27.38