本技术规范为以下焊接工艺的焊接工艺规范的最低要求提供指导: - 热气焊接:圆形喷嘴，高速喷嘴，楔形; - 挤压焊; - 加热工具焊接:对接，插座，楔形; - 溶剂焊接:插座; - 电熔焊接:插座，鞍座。 本技术规范适用于以下产品和热塑性材料制成的半成品的焊接: - 表 - 管道 - 配件; - 衬膜

This Technical Specification provides guidance for the minimum content of welding procedure specifications for the following welding processes: - hot gas welding: round nozzle, high speed nozzle, wedge; - extrusion welding; - heated tool welding: butt, socket, wedge; - solvent welding: socket; - electrofusion welding: socket, saddle. This Technical Specification applies to the welding of the following products and semi-finished products made of thermoplastic materials: - sheet; - pipe; - fittings; - lining membrane.