GB/T 1677-2023 Chinese PDF (GB/T1677-2023) GB 44246-2024 20-2025_Chinese: Methods for chemical analysis

20-2025_Chinese: Methods for chemical analysis of tungsten concentrates - Part 20: Determination of mercury content - Solid sampling and direct mercury analysis method (Chinese: 钨精矿化学分析方法 第20部分：汞含量的测定 固体进样直接测定法)

English versions: GB/T 45571-2025

GB/T 45100-2024_Chinese: Diagnostic techniques for enzootic abortion of ewes (Chinese: 羊地方性流产诊断技术)

1-2024_Chinese: Digital fittings - Performance evaluation protocol for systems - Part 1: Virtual human body representation (Chinese: 数字化试衣 系统性能评估 第1部分：虚拟人体表示)

English versions: GB/T 37752

GB/T 1677-2023 Chinese PDF (GB/T1677-2023) GB 44246-2024 20-2025_Chinese: Methods for chemical analysisGB T 1677 2023_Chinese: Determining the epoxy value of plasticizers (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 1677 2023