GB 30530-2024 Chinese PDF GB/T 45470-2025 GB/T 25187-2024_Chinese: Surface chemical analysis

GB/T 25187-2024_Chinese: Surface chemical analysis - Auger electron spectroscopy - Description of selected instrumental performance parameters (Chinese: 表面化学分析 俄歇电子能谱 选择仪器性能参数的表述)

GB/T 45635-2025_Chinese: Specifications for the control of biosafety risks in the operation and use of entry-exit special products (Chinese: 进出境特殊物品经营和使用生物安全风险控制规范)

English versions: GB/T 4447-2025

English versions: GB/T 27930

English versions: GB/T 2941-2025

GB 30530-2024 Chinese PDF GB/T 45470-2025 GB/T 25187-2024_Chinese: Surface chemical analysisGB 30530 2024_Chinese: Norm of energy consumption per unit production of dimethyl siloxane (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB 30530 2024