GB/T 2680-2021.Glass in building-Determination of light transmittance, solar direct transmittance, total solar energy transmittance, ultraviolet transmittance and related glazing fa...
GB/T 31815-2015.Self-cleaning coatings for building exteriors.1范围GB/T 31815规定了建筑外表面用自清洁涂料产品的术语和定义、要求.试验方法、检验规则...
GB/T 15092.1-2020.Switches for appliances-Part 1 : General requirements.1范围GB/T 15092 的本部分规定了器具开关的标志与文件、防触电保护、结构要求、机构...
GB/T 14098-2020.Turbines and turbine sets-Measurement of emitted airborne noise-Engineering/ survey method.1范围GB/T 14098规定了在稳定运行工况下燃气轮机机组和汽轮...
GB/T 11032-2020.Metal-oxide surge arresters without gaps for a.c. systems.1范围GB/T 11032规定了交流无间腺金属氧化物避雷器(以下简称避雷器)的标志及分类.标...
GB/T 39533-2020.Preparation and testing of foamed cement slurries at atmospheric pressure.1范围GB/T 39533规定了常压下泡沫水泥浆及未起泡的基浆的制备及试验方法...
GB/T 39255-2020.Gases and gas mixtures for welding and cutting processes.1范围GB/T 39255规定了焊接与切制用保护气体的型号、技术要求、试验方法、复验和供...
GB/T 39271.1-2020.Rolling bearings-Load ratings for hybrid bearings with rolling elements made of ceramic-Part 1: Dynamic load ratings.范围GB/T 39271.1规定了轴承套圈由当代...
GB/T 39271.2-2020.Rolling bearings-Load ratings for hybrid bearings with rolling elements madeof ceramic-Part 2: Static load ratings.1范围GB/T 39271.2规定了轴承套圈由当代常...
GB/Z 39124-2020.Method for chemical analysis of lead concentrates-Determination of antimony content-Ce(SO4)2 titration method.1范围GB/Z 39124规定了铅精矿中锑含量的测定方...
