QB/T 2986-2008.Auxiliaries for lamps- Particular requirements for electronic invertors and convertors for high-frequency operation of cold start tubular discharge lamps (neon tubes)...
QB/T 2947.2-2008.Electric bicycles-cell or battery and chargers Part 2: metal-hydride Ni-ion batteries and chargers.1范围QB/T 2947.2规定了电动自行车用金属氢化物镍蓄电...
GB/T 22792. 1-2009.Office furniture- Screens-Part 1:Dimensions.1范围GB 22792的本部分规定了办公用屏风的主要尺寸。2要求2.1高度当屏风用于视觉划分功能时...
GB/T 14255-1993.Method of sound power levels of noise emitted by household sewing machine head.1主题内容 与适用范围GB/T 14255规定了在一个反射平面上方为自由场的...
GB/T 14217-1993.Method of test for dielectric dissipation factor (tan 8) of capacitor paper at power frequence.1主题内容与适用范围GB/T 14217规定了采用金属圆柱电极测...
GB/T 14150-1993.Guangdong oaglaze decoration porcelain.5.14运用表5分级须符合下列规定:a.除明确规定者外,表中所规定的缺陷尺寸均指显见面的缺陷尺寸...
GB/T 14149-1993.Laboratory glassware- Interchangeable spherial ground joints.GB/T 14149等同采用国际标准ISO 641- 19756实验室玻璃仪器一互换球形 磨砂接头》。1主...
GB/T 14148-1993.Glass blank of ophthalmic lenses.5.2规格尺 寸的检验5.2.1直径:用分 度值为0. 02mm的游标卡尺测量。5.2.2中心厚度 :用分度值为0. 02mm的测厚...
GB/T 14044-2005.Ballasts for tubular fluorescent lamps-Performance requirements.1.1 范围GB/T 14044规定了使用50Hz或60Hz,1000V以下交流电源，与管形预热阴极荧光灯...
GB/T 14044-1993.Ballasts for tubular fluorescent lamps Performance requirements.GB/T 14044参照采用国际标准IEC921(1988)《管形荧光灯镇流器性能要求》。1主题内容...
