用户登录

未生效 XB/T 520-2021铈掺杂钆镓铝石榴石多晶闪烁体

未生效 EN IEC 62037-2-2021Passive RF and microwave devices, intermodulation level measurement - Part 2: Measurement of passive intermodulation in coaxial cable assemblies

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 SY/T 6660-2021用旋转容积式气体流量计测量天然气流量

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

未生效 EN ISO 18229-2021Essential technical requirements for mechanical components and metallic structures foreseen for Generation IV nuclear reactors (ISO 18229:2018)

未生效 JJF 1933-2021光学轴类测量仪校准规范

未生效 NB/SH/T 6024-2021ZSM—5分子筛相对结晶度的测定 X射线衍射法

未生效 EN 15528-2021Railway applications - Line categories for managing the interface between load limits of vehicles and infrastructure

未生效 NY/T 3948-2021植物源农产品中叶黄素、玉米黄质、β-隐黄质的测定 高效液相色谱法

未生效 EN ISO 16672-2021Ophthalmic implants - Ocular endotamponades (ISO 16672:2020)

未生效 EN ISO 20344-2021Personal protective equipment - Test methods for footwear (ISO 20344:2021)

未生效 EN IEC 60545-2021Guidelines for commissioning and operation of hydraulic turbines, pump-turbines and storage pumps

未生效 EN IEC 61557-2-2021Electrical 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 2: Insulation resistance

未生效 HG/T 2427-2021肥料级氰氨化钙

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

未生效 DB32/T 4206-2022微型月季潮汐灌溉栽培技术规程

未生效 SC/T 1151-2021池蝶蚌

未生效 JJF 1927-2021医用CD/DR性能模体校准规范

未生效 NB/T 10816-2021非工业用户供电系统用谐波治理装置技术条件

未生效 JJF 1939-2021热式风速仪校准规范

未生效 JJF(机械) 1066-2021超声显微镜性能校准规范

未生效 SY/T 5822-2021油田化学剂分类及命名规范

未生效 JJF 1925-2021低频电压表校准规范

未生效 YS/T 1345.7-2021高铋铅化学分析方法第7部分：铜、铁、镍、镉、砷、锑、铋含量的测定电感耦合等离子体原子发射光谱法

未生效 DB35/T 2040-2021扁圆吻鲴繁育技术规范

未生效 SY/T 5587.9-2021常规修井作业规程 第9部分：换井口装置

未生效 YS/T 1434-2021六氯乙硅烷组分含量的测定 气相色谱法

未生效 EN ISO 6330-2021Textiles - Domestic washing and drying procedures for textile testing (ISO 6330:2021)

未生效 NB/T 10722-2021矿井漏泄通信系统通用技术条件