组合使用关键词、标准类型、状态与 ICS 分类，快速定位所需国家标准。
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GB/T 20490-2006
Seamless and welded (except submerged arc-welded) steel tubes for pressure purposes - Ultrasonic testing for the detection of laminar imperfections
GB/T 13239-2006
Metallic materials―Tensile testing at low temperature
GB/T 8760-2006
Gallium arsenide single crystal-determination of dislocation density
GB/T 8758-2006
Measuring thickness of epitaxial layers of gallium arsenide by infrared interference
GB/T 8757-2006
Determination of carrier concentration in gallium arsenide by the plasma resonance minimum
GB/T 5252-2006
Germanium monocrystal - inspection of dislocation etch pit density
GB/T 4326-2006
Extrinsic semiconductor single crystals measurement of Hall mobility and Hall coefficient
GB/T 1557-2006
The method of determining interstitial oxygen content in silicon by infrared absorption
GB/T 11068-2006
Gallium arsenide epitaxial layer - determination of carrier concentration voltage-capacitance method
GB/T 20255.5-2006
Methods for chemical analysis of hardmetals - Determination of chromium content - Flame atomic absorption spectrometric method
GB/T 20255.4-2006
Methods for chemical analysis of hardmetals - Determination of cobalt, iron, manganese, molybdenum, nickel, titanium and vanadium contents - Flame atomic absorption spectrometric method
GB/T 20255.3-2006
Methods for chemical analysis of hardmetals - Determination of molybdenum, titanium and vanadium contents - Flame atomic absorption spectrometric method
GB/T 20255.2-2006
Methods for chemical analysis of hardmetals - Determination of cobalt, iron, manganese and nickel contents - Flame atomic absorption spectrometric method
GB/T 20255.1-2006
Methods for chemical analysis of hardmetals - Determination of calcium, potassium, magnesium and sodium contents - Flame atomic absorption spectrometric method
GB/T 20120.1-2006
Corrosion of metals and alloys - Corrosion fatigue testing - Part 1: Cycles to failure testing
GB/T 20127.9-2006
Steel and alloy - Determination of trace element contents Part 9: Determination of scandium content by inductively coupled plasma atomic emission spectrometric method
GB/T 20127.8-2006
Steel and alloy - Determination of trace element contents Part 8: Determination of antimony content by hydride generation-atomic fluorescence spectrometric method
GB/T 20127.7-2006
Steel and alloy - Determination of trace element contents Part 7: Determination of lead content by oscillopolarographic method
GB/T 20127.6-2006
Steel and alloy - Determination of trace element contents Part 6: Determination of germanium content by gallic acid oscillopolarographic method
GB/T 20127.5-2006
Steel and alloy - Determination of trace element contents Part 5: Determination of gallium content by extraction separation-rhodamine B photometric method