GB 31604.61-2025 Chinese PDF GB 28263-2024 GB/T 11856

GB/T 11856

GB/T 10361-2024_Chinese: Wheat

GB 17918-2025_Chinese: Safety specification for dust explosion protection in bulk grain loading and unloading system in port (Chinese: 港口散粮装卸系统粉尘防爆安全规范)

English versions: GB/T 18299-2024

English versions: GB 19081-2025

GB 31604.61-2025 Chinese PDF GB 28263-2024 GB/T 11856GB 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