T/ZZB 1224-2019 General-purpose synthetic fiber round lifting strap
T/ZZB 1224-2019 General-purpose synthetic fiber round lifting strap
Basic Information
Scope
Main technical content: This standard specifies the terms and definitions, basic requirements, technical requirements, test methods, inspection rules, marking, packaging, transportation and storage for circular sling straps (hereinafter referred to as sling straps) made of synthetic fiber materials such as polyamide, polyester, and polypropylene. The maximum working load can reach 100 tons. The sling straps are suitable for general use in lifting operations of general materials and items. This standard does not apply to lifting operations including: lifting people, potentially dangerous items such as molten metals, acids, glass panels, fragile items, nuclear reactors, and lifting operations in special environments. The sling straps specified in this standard are suitable for use and storage within the following temperature ranges: a) polyester and polyamide: -40°C to 100°C; b) polypropylene: -40°C to 80°C. This standard does not apply to the following types of sling straps: a) sling straps used for fixing or bundling goods on pallets and platforms or in vehicles; b) unpadded tubular sling straps. The technical requirements specified in this standard should minimize the failures listed in Appendix A, which are likely to occur when the sling straps are used in accordance with the instructions and technical specifications provided by the manufacturer or authorized representative.