GB/T 31015-2024 Chinese PDF (GB /T31015-2024) GB 4789.38-2025 183-2025_Chinese: National food safety standard

183-2025_Chinese: National food safety standard - Determination of urease in food (Chinese: 食品安全国家标准 食品中脲酶的测定)

English versions: GB/T 2424

GB/T 24851-2024_Chinese: Specification for equipping and managing of measuring instrument of energy in building material industry (Chinese: 建筑材料行业能源计量器具配备和管理要求)

1编码规则 第1部分:基本编码规则（BER）、正则编码规则（CER）和非典型编码规则（DER）规范)

GB/T 21551

GB/T 31015-2024 Chinese PDF (GB /T31015-2024) GB 4789.38-2025 183-2025_Chinese: National food safety standardGB T 31015 2024_Chinese: Public information guidance systems Design and setting principles and requirements for the consideration of accessible needs (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 31015 2024