30 C.F.R. § 20.10 Tests (class 1 and 2 lamps).
Title 30 - Mineral Resources
Such tests will be made as are necessary to prove the adequacy of a lamp or any of its parts in fulfilling the purposes for which it was designed. These tests include the following: (a) Safety tests, including tests of safey devices, electrical contacts, and explosion-proof features. (b) Photometric tests. (c) Tests to demonstrate adequacy of mechanical strength. (d) Tests of nonspilling features (storage-battery lamps of class 1). (e) Temperature tests.
Title 30: Mineral Resources
PART 20—ELECTRIC MINE LAMPS OTHER THAN STANDARD CAP LAMPS
§ 20.10 Tests (class 1 and 2 lamps).

