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未生效 JJF(通信) 055-2021传导骚扰抗扰度测试仪校准规范

未生效 SY/T 6865-2021钻井液滤失量测试仪校准方法

未生效 EN IEC 61557-4-2021Electrical safety in low voltage distribution systems up to 1 000 V AC and 1 500 V DC - Equipment for testing, measuring or monitoring of protective measures - Part 4: Resistance of earth connection and equipotential bonding

未生效 DB33/T 2427-2022公路桥梁不中断交通常用支座更换技术规程

未生效 EN ISO 1833-22-2021Textiles - Quantitative chemical analysis - Part 22: Mixtures of viscose or certain types of cupro or modal or lyocell with flax fibres (method using formic acid and zinc chloride) (ISO 1833 22:2020)

未生效 HG/T 5929-2021化学试剂色谱用一水合庚烷磺酸钠

未生效 GM/T 0115-2021信息系统密码应用测评要求

未生效 YS/T 1462.5-2021粗锡化学分析方法第5部分：锑含量的测定火焰原子吸收光谱法和硫酸铈滴定法

未生效 DB51/T 10001.3-2021智慧高速公路 第3部分：路测设施设置规范

未生效 NB/T 10714-2021热储开发方案编制技术要求

未生效 YS/T 1475-2021锆及锆合金高低倍组织检验方法

未生效 SY/T 0538-2021管式加热炉规范

未生效 EN 14322-2021Wood-based panels - Melamine faced boards for interior uses - Definition, requirements and classification

未生效 SY/T 5954-2021开钻前验收项目及要求

未生效 JJF(通信) 005-2021网络损伤仿真仪校准规范

未生效 EN IEC 62271-112-2021High-voltage switchgear and controlgear - Part 112: Alternating current high-speed earthing switches for secondary arc extinction on transmission lines

未生效 EN IEC 61557-5-2021Electrical safety in low voltage distribution systems up to 1 000 V AC and 1 500 V DC - Equipment for testing, measuring or monitoring of protective measures - Part 5: Resistance to earth

未生效 JJF(机械) 1062-2021绝缘油介电强度测试仪校准规范

未生效 EN 16603-10-04-2021Space engineering - Space environment

未生效 DB35/T 2044-2021虚拟现实应用软件性能测试要求

未生效 DB32/ 4148-2021燃煤电厂大气污染物排放标准

未生效 NB/T 10760-2021矿用设备地面通电试验安全规程

未生效 NB/T 10843-2021页岩气井油基钻井液重复利用技术规范

未生效 YS/T 1440-2021碲化铋

未生效 EN ISO 19085-2-2021Woodworking machines - Safety - Part 2: Horizontal beam panel circular sawing machines (ISO 19085-2:2021)

未生效 SC/T 5025-2021蟹笼通用技术要求

未生效 EN IEC 61557-6-2021Electrical safety in low voltage distribution systems up to 1 000 V a.c. and 1 500 V d.c. - Equipment for testing, measuring or monitoring of protective measures - Part 6: Effectiveness of residual current devices (RCD) in TT, TN and IT systems

未生效 EN IEC 60974-11-2021Arc welding equipment - Part 11: Electrode holders

未生效 JJF(通信) 018-2021时间综合测试仪校准规范

未生效 JT/T 1405-2022公路水运工程项目生产安全事故应急预案编制要求