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English versions: GB/T 22252-2024
GB/T 45295-2025_Chinese: Guideline for diagnosis and treatment service of pet medical institutions (Chinese: 宠物诊疗机构诊疗服务指南)
GB/T 45028-2024_Chinese: Determination of oxygenates in alcohols/ethers-based aromatics - Gas chromatographic method (Chinese: 醇醚基芳烃中含氧化合物的测定 气相色谱法)
safety integrity levels (SIL) determination and verification (Chinese: 保护层分析（LOPA）、安全完整性等级（SIL）定级和验证质量控制导则)
English versions: GB/T 28988-2024
GB/T 15558.5-2023 Chinese PDF (GB/T15558.5-2023) GB 44503-2024 English versions: GB/T 22252-2024GB T 15558. 5 2023_Chinese: Buried polyethylene(PE) piping systems for the supply of gaseous fuels Part 5: Fitness for purpose of the system (Chinese: PE 5) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 15558. 5 2023
