Which code specifies how gas piping materials must be supported?

The National Fire Protection Association (NFPA) 54 code, also known as the National Fuel Gas Code, specifically addresses the installation of gas piping and the materials used in gas systems. This code outlines the requirements for the installation, maintenance, and operation of gas piping to ensure safety and prevent hazards, including how these piping materials should be properly supported.

One of the key aspects of NFPA 54 is that it provides guidelines on how to properly support gas piping systems to ensure structural integrity and safety. This includes specifics on the types of supports required, spacing of the supports, and other installation practices that protect the piping from physical damage and ensure safe operation.

In contrast, the other codes listed address different areas. NFPA 70 pertains to electrical installations, focusing on the safe use of electricity. The International Building Code (IBC) covers broader construction standards but does not specifically focus on gas piping materials. OSHA (Occupational Safety and Health Administration) is centered around workplace safety standards across various industries and does not dictate specific plumbing or gas piping requirements. Thus, NFPA 54 is the correct choice for specifications regarding how gas piping materials must be supported.