GB/T 31402-2023 Chinese PDF (GB/T31402-2023) GB/T 45644-2025 304-2025_Chinese: National food safety standard

304-2025_Chinese: National food safety standard - Determination of trivalent chromium and hexavalent chromium in foods (Chinese: 食品安全国家标准 食品中三价铬和六价铬的测定)

English versions: GB 21257-2024

GB/T 45352-2025_Chinese: General rule for the quality of granulated chicken bouillon (Chinese: 鸡精调味料质量通则)

unvulcanized - Determinations using a shearing-disc viscometer - Part 2: Determinations of pre-vulcanization characteristics (Chinese: 未硫化橡胶 用圆盘剪切黏度计进行测定 第2部分：初期硫化特性的测定)

English versions: GB 14102

GB/T 31402-2023 Chinese PDF (GB/T31402-2023) GB/T 45644-2025 304-2025_Chinese: National food safety standardGB T 31402 2023_Chinese: Measurement of antibacterial activity on plastics and other non porous surfaces (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 31402 2023