scope:

1.1 These minimum requirements cover equipment for manifolding high-pressure gas cylinders to supply gas for various industrial and commercial applications. Cylinders are manifolded for the purpose of centralizing the gas supply, to provide a continuous supply of gas, or to provide gas at a rate in excess of that which may be obtained from a single cylinder.

1.2 The requirements apply to manifolds for the following gases:

1. a) Acetylene;
2. b) Oxygen;
3. c) Fuel gases other than acetylene;
4. d) Nitrogen, carbon dioxide, air, and inert gases; and
5. e) Nonflammable medical gases.

1.3 Manifolds covered by this Standard are intended to be installed and used in accordance with the applicable Codes and Regulations as determined by the Authority Having Jurisdiction (AHJ), such as, but not limited to:

1. a) In the United States:
1. 1) For manifolds other than for nonflammable medical gas, the Standard for the Design and Installation of Oxygen-Fuel Gas Systems for Welding, Cutting, and Allied Processes, NFPA 51;
2. 2) For LP-Gas manifolds, the Liquefied Petroleum Gas Code, NFPA 58;
3. 3) For nonflammable medical gas manifolds, the Standard for Healthcare Facilities, NFPA 99.
2. b) In Canada:
1. 1) The Natural gas and propane storage and installation code, CSA B149 Series; and
2. 2) Provincial or other Regulations.

NOTE: For the purposes of this standard the terms "LP-Gas" and "Propane" are interchangeable.