T/WJGY 013-2022 Impact-resistant Polypropylene Composite Pipe
T/WJGY 013-2022 Impact-resistant Polypropylene Composite Pipe
Basic Information
Scope
Scope: This document specifies the terms and definitions, marking, requirements, test methods, inspection rules, marking, packaging, transportation, and storage of impact-resistant polypropylene composite pipes. This document is applicable to impact-resistant polypropylene composite pipes used for conveying domestic drinking water, cold and hot water, heating media, and other fluids. Main technical content: 5.1 Appearance 5.2 Dimensions 5.3 Hydraulic strength 5.4 Physical and chemical properties: ash content, melting temperature, oxidation induction time, oxidation induction time after 95°C and 1000-hour hydraulic strength test, pigment dispersion, longitudinal shrinkage rate, simple beam impact test, melt flow rate/MFR, light transmittance, and drop hammer impact test 5.5 Hygiene performance 5.6 Internal pressure test