Browse Standards

铌板材、带材和箔材

Niobium sheet，strip and foil

钽及钽合金板材、带材和箔材

Tantalum and tantalum alloy sheet，strip and foil

钨条

Tungsten bars and rods

钨粉

Tungsten Powder

烧结金属材料（不包括硬质合金） 可渗性烧结金属材料 密度、含油率和开孔率的测定

Sintered metal materials，excluding hardmetals - Permeable sintered metal materials - Determination of density，oil content，and open porosity

金属粉末 振实密度的测定

Metallic powders - Determination of tap density

砷化镓单晶位错密度的测量方法

Gallium arsenide single crystal-determination of dislocation density

砷化镓外延层厚度红外干涉测量方法

Measuring thickness of epitaxial layers of gallium arsenide by infrared interference

砷化镓中载流子浓度等离子共振测量方法

Determination of carrier concentration in gallium　arsenide by the plasma resonance minimum

锗单晶位错腐蚀坑密度测量方法

Germanium monocrystal - inspection of dislocation etch pit density

非本征半导体单晶霍尔迁移率和霍尔系数测量方法

Extrinsic semiconductor single crystals measurement of Hall mobility and Hall coefficient

硅晶体中间隙氧含量的红外吸收测量方法

The method of determining interstitial oxygen content in silicon by infrared absorption

砷化镓外延层载流子浓度电容-电压测量方法

Gallium arsenide epitaxial layer - determination of carrier concentration voltage-capacitance method

涡轮机高温螺栓用钢

Steels for turbine bolts at high temperature

高压锅炉用内螺纹无缝钢管

Multi-rifled seamless steel tubes for high-pressure boiler

金属材料低温拉伸试验方法

Metallic materials―Tensile testing at low temperature

铅精矿化学分析方法 氧化镁的测定 火焰原子吸收光谱法

Methods for chemical analysis of lead concentrates―Determination of magnesium oxide content―Flame atomic absorption spectrometric method

铅精矿化学分析方法 铜量的测定 火焰原子吸收光谱法

Methods for chemical analysis of lead concentrates―Determination of copper content―Flame atomic absorption spectrometric method

铅精矿化学分析方法 锌量的测定 EDTA滴定法

Methods for chemical analysis of lead concentrates―Determination of zinc content―EDTA titration method

铅精矿化学分析方法 镉量的测定 火焰原子吸收光谱法

Methods for chemical analysis of lead concentrates―Determination of cadmium content―Flame atomic absorption spectrometric method