GB/T 3850-2015
致密烧结金属材料与硬质合金 密度测定方法
Impermeable sintered metal materials and hardmetals—Determination of density
- 实施日期
- 2016-07-01
- ICS 分类
- 77.160
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 3850-2015
Impermeable sintered metal materials and hardmetals—Determination of density
GB/T 3849.1-2015
Hardmetals—Rockwell hardness test(scale A)—Part 1: Test method
GB/T 3489-2015
Hardmetals—Metallographic determination of porosity and uncombined carbon
GB/T 32186-2015
Test methods of cleanliness of aluminium and aluminium alloy ingots
GB/T 19199-2015
Test method for carbon acceptor concentration in semi-insulating gallium arsenide single crystals by infrared absorption spectroscopy
GB/T 17170-2015
Test method for the EL2 deep donor concentration in semi-insulating gallium arsenide single crystals by infrared absorption spectroscopy
GB/T 8650-2015
Evaluation of pipeline and pressure vessel steels for resistance to hydrogen-induced cracking
GB/T 7734-2015
Method for ultrasonic testing of clad steel plates
GB/T 32282-2015
Test method for disoclation density of GaN single crystal—Cathodoluminescence spectroscopy
GB/T 32189-2015
Test method for surface roughness of GaN single crystal substrate by atomic force microscope
GB/T 32188-2015
The method for full width at half maximum of double crystal X-ray rocking curve of GaN single crystal substrate
GB/T 32287-2015
Methods of determination and calculation of heat balance for hot blast stove in blast furnace
GB/T 32281-2015
Test method for measuring oxygen, carbon, boron and phosphorus in solar silicon wafers and feedstock by secondary ion mass spectrometry
GB/T 32280-2015
Test method for warp of silicon wafers—Automated non-contact scanning method
GB/T 32278-2015
Test methods for flatness of monocrystalline silicon carbide wafers
GB/T 24578-2015
Test method for measuring surface metal contamination on silicon wafers by total reflection X-Ray fluorescence spectroscopy
GB/T 7963-2015
Sintered metal materials, excluding hardmetals—Tensile test pieces
GB/T 32252-2015
Investment casting process—General technology guidelines
GB/T 32251-2015
Investment casting process—Pollutants control
GB/T 18376.3-2015
Grades of cemented carbide—Part 3: Grades of cemented carbide for wear parts