California Code of Regulations
Title 8 - Industrial Relations
Division 1 - Department of Industrial Relations
Chapter 4 - Division of Industrial Safety
Subchapter 7 - General Industry Safety Orders
Group 10 - Gas Systems for Welding and Cutting
Article 85 - Service Piping for All Gases
Section 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.

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

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