بخش 2.page-10.5

2-7 EN 476, General requirements for components used in discharge pipes, drains and sewers for gravity systems
2-8 EN 637, Plastics piping systems - Glass-reinforced plastics components - Determination of the amounts of constituents using the gravimetric method
2-9 EN 705, Plastics piping systems - Glass-reinforced thermosetting plastics (GRP) pipes and fittings - Methods for regression analyses and their use
2-10 EN 13121-1, GRP tanks and vessels for use above ground - Part 1: Raw materials - Specification conditions and acceptance conditions
2-11 ISO 75-2, Plastics - Determination of temperature of deflection under load - Part 2: Plastics, ebonite and long-fibre-reinforced composites
2-12 ISO/TR 7620, Rubber materials - Chemical resistance