GB/T 29246-2023 Chinese PDF (GB/T29246-2023) GB/T 33744-2025 GB/T 18891-2024_Chinese: Designation of phase

GB/T 18891-2024_Chinese: Designation of phase differences by hour numbers in three-phase AC systems (Chinese: 三相交流系统相位差的钟时序数标识)

English versions: GB/T 18690

GB 45671-2025_Chinese: Safety technical specifications for construction waterproof coatings (Chinese: 建筑防水涂料安全技术规范)

7-2023_Chinese: Forensic sciences - Physical and chemical examination of trace evidence - Part 7: Gas chromatography-mass spectrometry (Chinese: 法庭科学 微量物证的理化检验 第7部分：气相色谱-质谱法)

English versions: GB/T 10463-2024

GB/T 29246-2023 Chinese PDF (GB/T29246-2023) GB/T 33744-2025 GB/T 18891-2024_Chinese: Designation of phaseGB T 29246 2023_Chinese: Information security technology Information security management systems Overview and vocabulary (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 29246 2023