OBJECT AND SCOPE
This Standard is intended to establish a common system to assist in identification of hazardous materials conveyed in piping systems and their hazards when released in the environment.
This scheme concerns identification of contents of piping systems. It is recommended for the identification of piping systems used in industrial, commercial, and institutional installations, and in buildings used for public assembly. It does not apply to buried pipelines nor to electrical conduits.
Existing schemes for identification shall be considered as meeting the requirements of this Standard if
(a) such schemes are described in writing
(b) employees are trained as to the operation and hazards of the piping systems