GB/T 31925-2015
厚壁无缝钢管超声波检验方法
Ultrasonic test methods of heavy wall thickness seamless steel pipes and tubes
- 实施日期
- 2016-06-01
- ICS 分类
- 77.040.20
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 31925-2015
Ultrasonic test methods of heavy wall thickness seamless steel pipes and tubes
GB/T 31924-2015
Nickel pig iron—Determination of nickel content—The dimethylglyoxime gravimetric method
GB/T 31909-2015
Permeable sintered metal materials—Determination of the air permeability
GB/T 226-2015
Test method for macrostructure and defect of steel by etching
GB/T 14849.9-2015
Methods for chemical analysis of silicon metal—Part 9: Determination of titanium content —Diantipyryl methane spectrophotometry
GB/T 14849.7-2015
Methods for chemical analysis of silicon metal—Part 7: Determination of phosphorus content—Phosphorus molybdenum blue spectrophotometry
GB/T 13298-2015
Inspection methods of microstructure for metals
GB/T 9769-2015
Rim contour measure
GB/T 31981-2015
Methods of sampling and sample preparation for chemical composition analysis of titanium and titanium alloy
GB/T 31969-2015
Test methods of rare earth three-band phosphors for fluorescent lamps—Measurement of phosphors application character
GB/T 31967.2-2015
Test method for physical property of rare earth permanent magnetic materials—Part 2:Determination of bending strength and fracture toughness
GB/T 31967.1-2015
Test method for physical property of rare earth permanent magnetic materials—Part 1:Determination of temperature coefficient of magnetic flux
GB/T 31959-2015
Determination of thermal oxidative resistance of carbon fiber
GB/T 31957-2015
Testmethod of chemical resistance of glass fibers
GB/T 31911-2015
Methods for determination of emissions from appliances burning gaseous fuels
GB/T 17430-2015
Estimating the maximum service temperature of thermal insulation
GB/T 14849.8-2015
Methods for chemical analysis of silicon metal—Part 8: Determination of copper content—Atomic absorption spectrometric method
GB/T 10297-2015
Test method for thermal conductivity of nonmetal solid materials—hot-wire method
GB/T 32006-2015
Evaluation of photothermal effect of gold nanorods
GB/T 6952-2015
Sanitary wares