This document specifies the terms and definitions, classification, basic requirements, technical requirements, test methods, inspection rules, marking, packaging, transportation and storage, and quality commitments of hinges for building windows. This document applies to hinges (hinges) for casement windows in buildings. This document does not apply to hinges for frameless casement glass doors, hinges for screen doors and windows (hinges), hinges for folding doors and windows, and outward-opening windows.
T/ZZB 2907-2022 history
2022T/ZZB 2907-2022 Building hardware for windows and doors 一 Friction hinges