SY/T 6770.3-2018 in English

This standard outlines the requirements for the quality acceptance of non-metallic pipes, specifically focusing on thermoplastic inner-lined glass fiber reinforced plastic pipes. It provides detailed guidelines on the testing procedures, performance criteria, and inspection methods to ensure the conformity of the product with specified standards. The document covers various aspects such as material selection, manufacturing processes, and final product evaluation. It also includes specifications for dimensional tolerances, mechanical properties, and environmental resistance. The standard is structured to facilitate consistent quality control across different production facilities and ensures that the final products meet the necessary technical requirements for their intended applications.