May I ask whether the HG20538 standard can be applied to fluorine-lined carbon steel pipes?
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Fluorinated carbon steel pipes have a dedicated standard, HG/T4584, as well as a general standard, HG/T20538. Which standard is more appropriate to use?
Fluorine-lined carbon steel pipes have a dedicated standard, HG/T4584 \"Steel Pipes and Fittings Lined with Polytetrafluoroethylene\", as well as a general standard, HG/T20538 \"Technical Requirements for Lined Equipment\". In general, for specific and well-defined materials (such as carbon steel lined with fluorine), it is recommended to follow the dedicated standard HG/T4584, as this standard provides more explicit and detailed regulations regarding the specific materials, manufacturing processes, and quality control, offering greater applicability. The general standard HG/T20538 has a broader scope of application and is suitable for various lining materials; it can be used as a supplementary reference, provided that a specific standard is chosen first. Therefore, for carbon steel pipes lined with fluoropolymer, HG/T4584 is recommended as it is more professional and specific. In the event of any special requirements or matters not specified in the dedicated standards, the general standard HG/T20538 can be referred to for supplementary implementation. .