ISO 8639:2016 Glass-reinforced thermosetting plastics (GRP) pipes and fittings - Test methods for leaktightness and proof of structural design of flexible joints
2023ISO 8639:2023 Glass-reinforced thermosetting plastics (GRP) pipes and fittings — Test methods for leaktightness and proof of structural design of flexible joints
2016ISO 8639:2016 Glass-reinforced thermosetting plastics (GRP) pipes and fittings - Test methods for leaktightness and proof of structural design of flexible joints
2023ISO 8639:2003 Glass-reinforced thermosetting plastics (GRP) pipes and fittings — Test methods for leaktightness and proof of structural design of flexible joints
2000ISO 8639:2000 Glass-reinforced thermosetting plastics (GRP) pipes and fittings - Test methods for leaktightness of flexible joints