GB 31604.61-2025 Chinese PDF GB 23394-2024 3-cyclobutanediol (Chinese: 食品安全国家标准 食品接触材料及制品 2

3-cyclobutanediol (Chinese: 食品安全国家标准 食品接触材料及制品 2

75-2025_Chinese: National food safety standard - Nutrition fortifier - 6S-5-methyltetrahydrofolate

40-2024_Chinese: Specifications for optical fibre test methods - Part 40: Measurement methods and test procedures for transmission characteristics - Attenuation (Chinese: 光纤试验方法规范 第40部分：传输特性的测量方法和试验程序 衰减)

GB 19578-2024_Chinese: Fuel consumption limits for passenger cars (Chinese: 乘用车燃料消耗量限值)

GB/T 10816-2024_Chinese: Zisha ware (Chinese: 紫砂陶器)

GB 31604.61-2025 Chinese PDF GB 23394-2024 3-cyclobutanediol (Chinese: 食品安全国家标准 食品接触材料及制品 2GB 31604. 61 2025_Chinese: National food safety standard Food contact materials and products Determination of migration of 2,2,4,4 tetramethyl 1,3 cyclobutanediol (Chinese: 2,2,4,4 1,3 ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB 31604. 61 2025