The implementation standard of braided pipe is GB/T23448-2009 or JC886-2001. Because braided pipe is mainly used in the water supply connection of sanitary equipment or drinking water equipment, the water directly contacts human skin or is directly drunk after passing through the pipe. Therefore, the material of the inner tube in contact with the water source is very critical. The existing national standard or the standard of the Ministry of Construction requires that the inner pipe material must meet the "GBT17219-1998 Safety Evaluation Standard for Drinking Water Transmission and Distribution Equipment and Protective Materials" in order to ensure that the water source is not polluted. In Europe, Germany puts forward higher requirements for braided pipes, especially for braided pipes connected to drinking water, requiring the inner pipe to undergo microbial toxicity W270 test. Under this requirement, the original PVC, EPDM and other raw materials can no longer meet the requirements. . The latest inner tube material is now widely used in the European market, mainly silicone tube or PEX-B tube. Since the cost of silicone tube is too high, PEX-B tube in the European market will now be the future trend.
