This standard specifies the definition, technical requirements, test methods, inspection rules, marking, packaging, transportation and storage of compressed natural gas vehicle high-pressure pipelines (hereinafter referred to as high-pressure pipelines). This standard is applicable to high-pressure pipelines that use automotive compressed natural gas that meets the requirements of GB 18047, have a rated working pressure of 220MPa (the pressure values stated in this standard refer to gauge pressure), and a working environment temperature of -40°C to 120°C.
QC/T 746-2006 Referenced Document
GB 9571 Evaluation of the ozone resistance of rubber and plastic hoses under static conditions