Air line respirators (HS code(s): 9020); (ICS code(s): 13.340.30)

National Standard of the P.R.C., Respiratory Protection—Air Line Respirators

This document specifies the product classification, components, technical requirements, test methods and marking of air-line respirators.

This document applies to occupational workplaces where air-line respirators are required. This document does not apply to fire-fighting workplaces.