GB/T 39227-2020.Immunity time testing method under voltage dip for sensitive process rated less than 1 000 V.1范围GB/T 39227规定了1000V以下敏感过程电压暂降免疫时间测...
GB 39496-2020.Safety regulation for tailings pond.1范围GB 39496规定了尾矿库在建设、生产运行、回采、闭库、安全检查、生产经营单位应急管理、安全评...
GB/T 28963-2020.Ships and marine technology-Fire-extinguishing systems for protection of galley cooking equipment.1范围GB/T 28963规定了预制灭火系统单元以特定型式、配...
GB/T 39535-2020.Test method for shore hardness of carbon materials.1范围GB/T 39535规定了炭素材料肖氏硬度的原理、仪器设备、试样、试验步骤、精密度、试...
GB/T 20801.2-2020.Pressure piping code-Industrial piping-Part 2 : Materials.1范围GB/T 20801的本部分规定了压力管道元件用材料的基本要求.包括材料的选用.基于...
GB/T 39387-2020.Application effect evaluation of heat pump technology in household appliances.1范围GB/T 39387规定了热泵技术在家用电器中应用时效果评价的术语和...
GB/T 39336-2020.Technical requirement of roadside bag filling for gob-side entry retaining with high-water material.1范围GB/T 39336规定了沿空留巷高水材料巷旁袋式充填...
GB/T 5023.5-2008.Polyvinyl chloride insulated cables of rated voltages up to and including 450/750 V-Part 5: Flexible cables (cords).1总则1.1 范围GB/T 5023.5详细规定了额定电...
GB/T 7424.24-2020.Optical fibre cable generic specification-Part 24 :Basic optical cable test procedures- Electrical test methods.1范围GB/T 7424.24规定了光缆电气性能试验的...
GB/T 2820.11-2012.Reciprocating internal combustion engine driven alternating current generating sets- Part 11 :Rotary uninterruptible power systems-Performance requirements and tes...
