GB/T 18281.5-2024 Chinese PDF (GB /T18281.5-2024) GB 19053-2024 307-2025_Chinese: National food safety standard

307-2025_Chinese: National food safety standard - Determination of formaldehyde in foods (Chinese: 食品安全国家标准 食品中甲醛的测定)

13-2025_Chinese: Forensic sciences - Physical and chemical examination of trace evidence - Part 13: Wavelength dispersive X-ray fluorescence spectrometry (Chinese: 法庭科学 微量物证的理化检验 第13部分：波长色散X射线荧光光谱法)

GB/T 18216

36-2024_Chinese: Electromagnetic compatibility - Testing and measurement techniques - Part 36: Intentional electromagnetic interference immunity test methods for equipment and systems (Chinese: 电磁兼容 试验和测量技术 第36部分：设备和系统的有意电磁干扰抗扰度试验方法)

GB 20943-2025_Chinese: Minimum allowable values of energy efficiency and energy efficiency grades for AC-DC and AC-AC power supplies (Chinese: 交流-直流和交流-交流电源能效限定值及能效等级)

GB/T 18281.5-2024 Chinese PDF (GB /T18281.5-2024) GB 19053-2024 307-2025_Chinese: National food safety standardGB T 18281. 5 2024_Chinese: Sterilization of health care products Biological indicators Part 5: Biological indicators for low temperature steam and formaldehyde sterilization processes (Chinese: 5) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 18281. 5 2024