This information is provided free of charge by the Department of Industrial Relations from its web site at These regulations are for the convenience of the user and no representation or warranty is made that the information is current or accurate. See full disclaimer at

Subchapter 7. General Industry Safety Orders
Group 10. Gas Systems for Welding and Cutting
Article 85. Service Piping for All Gases

Return to index
New query

§4826. Testing.

Piping systems shall be tested and proved gas-tight at 1 1/2 times the maximum working pressure and shall be thoroughly purged of air before being placed in service. The material used for testing oxygen lines shall be oil-free and non-combustible, flames shall not be used to detect leaks.

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


1. Amendment filed 6-12-87; operative 7-12-87 (Register 87, No. 26).

Go BackGo Back to Article 85 Table of Contents