30 CFR 36.48
§ 36.48 Tests of surface temperature of engine and components of the cooling system.
United States · 30 CFR — Mineral Resources · Status: effective
Cite this
- Citation
- 30 CFR 36.48, § 36.48 Tests of surface temperature of engine and components of the cooling system, United States, version 1 as recorded 2026-07-09, yourstate.us, https://yourstate.us/provision/132000
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ys:prov:132000@1- SHA-256
309152aa3b36026b51acbcaf7ec3f18778c0ef97a00c7cebb6623d53533a5aa5
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Full text
(a) The surface temperatures of the engine, exhaust cooling system, and other components subject to heating by engine operation shall be determined with the engine operated as prescribed by MSHA. All parts of the engine, cooling system, and other components shall have reached their respective equilibrium temperatures. The exhaust cooling system shall be operated, but air shall not be circulated over the engine or components. Surface temperatures shall be measured at various places prescribed by MSHA to determine where maximum temperatures develop.
(b) The temperature of any surface shall not exceed 400 °F.
The engine may be operated under test conditions prescribed by MSHA while completely surrounded by a flammable mixture. MSHA reserves the right to apply combustible materials to any surface for test. Operation under such conditions shall not ignite the flammable mixture.
Legislative history
This is a federal regulation, adopted through agency rulemaking under the Administrative Procedure Act — not enacted by a recorded vote of Congress.