GB/T 21294-2024 Chinese PDF (GB/T21294-2024) GB/T 17215.686-2024 1-2025_Chinese: Quality requirements for organic

1-2025_Chinese: Quality requirements for organic acids - Part 1: Citric acid (Chinese: 有机酸质量要求 第1部分：柠檬酸)

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)

GB/T 17626

GB/T 45362-2025_Chinese: Textiles - Determination of thermal effusivity of fabrics - Modified transient plane source method (Chinese: 纺织品 织物蓄热系数的测定 改型平面瞬态热源法)

1-2024_Chinese: Technical requirements and test methods for on-board positioning system - Part 1: Satellite positioning (Chinese: 车载定位系统技术要求及试验方法 第1部分：卫星定位)

GB/T 21294-2024 Chinese PDF (GB/T21294-2024) GB/T 17215.686-2024 1-2025_Chinese: Quality requirements for organicGB T 21294 2024_Chinese: Testing methods of physical and chemical performance of garments (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 21294 2024