What standards are used for PP pipes?
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As the title suggests, I would like to ask the experts: what standards should be followed for PP pipes used in exhaust systems, as well as for the fittings, flanges, and valves? Thank you.
Can I write HG 20539-92 Enhanced Polypropylene Pipes and Fittings?
I saw that this standard is for composite pipes; I’m currently using PP pipes for exhaust, which are simply regular PP pipes
There are many types of PP, such as PPR, PPH, PPB, FRPP, and so on. Which one are you asking about? Generally, the GB/T 18742 standard for polypropylene pipes for hot and cold water can be used; it is quite comprehensive. For a perfect match, it is ISO 15494 – industrial polyethylene, polypropylene, and polybutylene pipes. You can refer to this standard. Those starting with HG are standards from the Ministry of Chemical Industry; for FRPP pipes, this can be used as a reference