30 CFR § 20.10 - Tests (class 1 and 2 lamps).

---
identifier: "/us/cfr/t30/s20.10"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "30 CFR § 20.10 - Tests (class 1 and 2 lamps)."
title_number: 30
title_name: "Mineral Resources"
section_number: "20.10"
section_name: "Tests (class 1 and 2 lamps)."
chapter_name: "MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR"
subchapter_number: "B"
subchapter_name: "TESTING, EVALUATION, AND APPROVAL OF MINING PRODUCTS"
part_number: "20"
part_name: "ELECTRIC MINE LAMPS OTHER THAN STANDARD CAP LAMPS"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "30 U.S.C. 957, 961."
regulatory_source: "Schedule 10C, May 17, 1938, as amended at 5 FR 3467, Aug. 30, 1940, unless otherwise noted."
cfr_part: "20"
---


# 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 safety 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.