[Code of Federal Regulations] [Title 30, Volume 1] [Revised as of July 1, 2002] From the U.S. Government Printing Office via GPO Access [CITE: 30CFR20.10] [Page 131] TITLE 30--MINERAL RESOURCES CHAPTER I--MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR PART 20--ELECTRIC MINE LAMPS OTHER THAN STANDARD CAP LAMPS--Table of Contents Sec. 20.10 Tests (class 1 and 2 lamps). 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.