California Code of Regulations
Title 8 - Industrial Relations
Division 1 - Department of Industrial Relations
Chapter 4 - Division of Industrial Safety
Subchapter 17 - Mine Safety Orders
Article 32 - Gases in Mines
UNDERGROUND
Section 7104 - Tests for Gases

Universal Citation: 8 CA Code of Regs 7104

Current through Register 2024 Notice Reg. No. 38, September 20, 2024

(a) Tests for flammable gases shall be made with a permissible methane detector or by chemical analysis.

NOTE: To be of most value in active mines, it is necessary that the percent of gas present be quickly and accurately determined. Because of the time required to collect and analyze air samples, and the relative insensitivity of the flame safety lamp, it is strongly recommended that a permissible methane detector be used for testing.

(b) Tests for any gas other than flammable gas shall be made by chemical analysis or by use of a testing device designed to detect the particular gas for which the test is being made, and to measure its concentration.

(c) When the air in any part of a mine is known to contain or is suspected of containing dangerous or explosive gas, it shall be tested by means acceptable to the Division of Industrial Safety before employees are allowed to work therein. These tests shall be made by an individual who has been certified by the Division to make them.

Every person requesting certification as a gas tester shall submit a completed application form to the Division. Upon submission of an application for certification as a gas tester, the Division shall collect the amount of $15.00 for examination fee which is non-refundable. Renewal fees are $5.00 annually.

NOTE: See Section 6967 (b) for Labor Code excerpts.

1. Repealer of subsection (c) and new subsection (c) filed 8-1-74; effective thirtieth day thereafter (Register 74, No. 31).
2. Change without regulatory effect amending subsection (c) and NOTE filed 3-17-2011 pursuant to section 100, title 1, California Code of Regulations (Register 2011, No. 11).

Note: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code

Disclaimer: These regulations may not be the most recent version. California may have more current or accurate information. We make no warranties or guarantees about the accuracy, completeness, or adequacy of the information contained on this site or the information linked to on the state site. Please check official sources.
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.