GB/T 23947.3-2023 Chinese PDF (GB/T23947.3-2023) GB/T 11828.4-2025 English versions: GB/T 20717-2024

English versions: GB/T 20717-2024

GB/T 45531-2025_Chinese: Guidelines for establishing single submission portal of international trade (Chinese: 国际贸易单一提交门户建立指南)

GB/T 45647-2025_Chinese: Technical specification for carbon dioxide recovery and disposal in metallurgical lime kiln (Chinese: 冶金石灰窑中二氧化碳回收处置技术规范)

GB/T 44115

English versions: GB/T 45439-2025

GB/T 23947.3-2023 Chinese PDF (GB/T23947.3-2023) GB/T 11828.4-2025 English versions: GB/T 20717-2024GB T 23947. 3 2023_Chinese: General method for the determination of arsenic in inorganic chemical products Part 3: Atomic fluorescence spectrometry (Chinese: 3) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 23947. 3 2023