GB/T 5275.1-2024 Chinese PDF (GB/T5275.1-2024) GB/T 33744-2025 1-2024_Chinese: Electronic data interchange for

1-2024_Chinese: Electronic data interchange for administration

GB/T 45125-2025_Chinese: Determining of the softening point of phenolic resin for digita printing material - Microscopic melting point method (Chinese: 数字印刷材料用酚醛树脂软化点的测定 显微熔点仪法)

94-2024_Chinese: Safety of household and similar electrical appliances - Part 94: Particular requirements for gas

2-2025_Chinese: Optics and photonics - Test methods for telescopic systems - Part 2: Binoculars (Chinese: 光学和光子学 望远镜系统试验方法 第2部分：双筒望远镜)

GB/T 5275.1-2024 Chinese PDF (GB/T5275.1-2024) GB/T 33744-2025 1-2024_Chinese: Electronic data interchange forGB T 5275. 1 2024_Chinese: Gas analysis Preparation of calibration gas mixtures using dynamic methods Part 1: General aspects (Chinese: 1) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 5275. 1 2024