用户登录

未生效 EN 13757-1-2021Communication systems for meters - Part 1: Data exchange

未生效 JJF(通信) 052-20215G 移动通信综合测试仪校准规范

未生效 HG/T 4133-2021工业磷酸二氢铵

未生效 JJF(石化) 049-2021落球回弹测定仪校准规范

未生效 SY/T 6680-2021石油天然气钻采设备 钻机和修井机出厂验收规范

未生效 YS/T 1493-2021高纯铂化学分析方法杂质元素含量的测定辉光放电质谱法

未生效 HG/T 4132-2021工业磷酸氢二铵

未生效 YS/T 1505-2021高纯钌化学分析方法杂质元素含量的测定辉光放电质谱法

未生效 EN ISO 12543-1-2021Glass in building - Laminated glass and laminated safety glass - Part 1: Vocabulary and description of component parts (ISO 12543-1:2021)

未生效 QB/T 4049-2021塑料饮水口杯

未生效 EN IEC 61850-7-420-2021Communication networks and systems for power utility automation - Part 7-420: Basic communication structure - Distributed energy resources and distribution automation logical nodes

未生效 EN IEC 61954-2021Static VAR compensators (SVC) - Testing of thyristor valves

未生效 JJF(石化) 043-2021自热物质试验仪校准规范

未生效 JTG 2112-2021城镇化地区公路工程技术标准

未生效 JJF 1936-2021紫外分析仪校准规范

未生效 EN IEC 60695-11-11-2021Fire hazard testing - Part 11-11: Test flames - Determination of the characteristic heat flux for ignition from a non-contacting flame source

未生效 SJ/T 11791-2021电视接收设备激光投影显示规范

未生效 SAE AS81914/3 REV C-2017TUBING, PLASTIC, FLEXIBLE, CONVOLUTED, HELICAL FLUORINATED ETHYLENE PROPYLENE (FEP) STANDARD CONVOLUTION

未生效 JJF 1955-2021次声传感器校准规范（耦合腔比较法）

未生效 EN 12952-2-2021Water-tube boilers and auxiliary installations - Part 2: Materials for pressure parts of boilers and accessories

未生效 SC/T 3305-2021调味烤虾

未生效 EN IEC 62271-100-2021High-voltage switchgear and controlgear - Part 100: Alternating-current circuit-breakers

未生效 HJ 1192-2021水质 9 种烷基酚类化合物和双酚A 的测定 固相萃取/高效液相色谱法

未生效 YS/T 1462.1-2021粗锡化学分析方法第1部分：锡含量的测定碘酸钾滴定法

未生效 SY/T 5464-2021测井与射孔生产指标的统计和计算方法

未生效 EN IEC 60519-4-2022Safety in installations for electroheating and electromagnetic processing - Part 4: Particular requirements for arc furnace installations

未生效 JJF(兵工民品) 0010-2021旋转蒸发器校准规范

未生效 EN 877-2021Cast iron pipe systems and their components for the evacuation of water from works - characteristics and test methods

未生效 EN 13523-7-2021Coil coated metals - Test methods - Part 7: Resistance to cracking on bending (T-bend test)

未生效 EN ISO 16647-2021Nuclear facilities - Criteria for design and operation of confinement systems for nuclear worksite and for nuclear installations under decommissioning (ISO 16647:2018)