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English versions: GB/T 22285-2025
English versions: GB/T 21478-2024
4-2025_Chinese: Quality requirements for enzyme preparations - Part 4: Immobilized glucose isomerase preparations (Chinese: 酶制剂质量要求 第4部分：固定化葡萄糖异构酶制剂)
GB/T 21638-2025_Chinese: Microbeam analysis - Guidelines for electron beam microanalysis of defects in steel materials (Chinese: 微束分析 钢铁材料缺陷电子束显微分析方法通则)
GB/T 22474-2025_Chinese: General quality for fruit and vegetable
GB/T 21551.4-2024 Chinese PDF (GB /T21551.4-2024) GB/T 14478-2025 English versions: GB/T 22285-2025GB T 21551. 4 2024_Chinese: Antimicrobial and cleaning function of household and similar electrical appliances Part 4: Particular requirements for refrigerator (Chinese: 4) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 21551. 4 2024
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