GB 31604.31-2025 Chinese PDF GB/T 12540-2024 3-2025_Chinese: Uncut finished spectacle lenses

3-2025_Chinese: Uncut finished spectacle lenses - Part 3: Transmittance test methods (Chinese: 眼镜镜片 第3部分：透射比试验方法)

2-2025_Chinese: Criteria for nuclear reactor instrumentation - Part 2: Pressurized water reactors (Chinese: 核反应堆仪表准则 第2部分：压水堆)

GB/T 11730-2025_Chinese: Rural domestic water quantity (Chinese: 农村生活饮用水量)

English versions: GB/T 1232

English versions: GB/T 10810

GB 31604.31-2025 Chinese PDF GB/T 12540-2024 3-2025_Chinese: Uncut finished spectacle lensesGB 31604. 31 2025_Chinese: National food safety standard Food contact materials and products Determination of residual and migration of vinyl chloride, 1,1 dichloroethylene and 1,1 dichloroethane (Chinese: 1,1 1,1 ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB 31604. 31 2025