CJ/T 197-2004 The corrugated hose assemblies of stainless for gas
This standard specifies the terms and definitions, specifications, type classification, and model marking, requirements, marking and labeling, as well as packaging, transportation, and storage of stainless steel corrugated hoses for gas use (hereinafter referred to as hoses).
This standard applies to hoses used for connecting gas appliances, gas meters, and gas pipelines with a nominal diameter of less than or equal to 50 mm and a nominal pressure of less than or equal to 0.1 MPa, hoses used inside gas appliances, and buried hoses (hereinafter referred to as buried pipes).