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Std ID |
Description (Standard Title) |
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GB/T 3655-2022
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Methods of measurement of the magnetic properties of electrical steel strip and sheet by means of an epstein frame
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GB/T 3656-2022
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Methods of coercivity measurement of magnetic iron and magnetically soft alloy by pulling out procedure
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GB/T 3658-2022
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Methods of measurement of the magnetic properties of magnetically soft metallic and powder materials at frequencies in the range 20 Hz to 100 kHz by the use of ring specimens
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GB/T 41079.2-2022
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Test methods for physical properties of liquid metals - Part 2: Determination of electrical conductivity
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GB/T 41751-2022
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Test method for radius of curvature of crystal plane in GaN single crystal substrate wafers
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GB/T 41765-2022
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Test method for dislocation density of monocrystalline silicon carbide
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GB/T 42161-2022
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Electrochemical performance test of lithium iron phosphate - Test method for the initial discharge specific capacity and the initial efficiency
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GB/T 42260-2022
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Electrochemical performance test of lithium iron phosphate - Test method for cycle life
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GB/T 42271-2022
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Test method for resistivity of semi-insulating monocrystalline silicon carbide by contactless measurement
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GB/T 39861-2021
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Electrochemical Performance Test of Lithium Manganese Oxide - Test Method for Discharge Plateau Capacity Ratio and Cycle Life
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GB/T 39864-2021
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Electrochemical Performance Test of Lithium Manganese Oxide - Test Method for the Initial Specific Discharge Capacity and the Initial Efficiency
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GB/T 5162-2021
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Metallic powders - Determination of tap density
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GB/T 19346.3-2021
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Methods of measurement of amorphous and nanocrystalline alloys - Part 3: AC magnetic properties of Fe-based amorphous strip using a single sheet specimen
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GB/T 14146-2021
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Test method for carrier concentration of silicon epitaxial layers - Capacitance-voltage method
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GB/T 1551-2021
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Test method for measuring resistivity of monocrystal silicon - In-line four-point probe and direct current two-point probe method
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GB/T 21227-2021
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AC loss measurements - Magnetometer methods for hysteresis loss in superconducting multifilamentary composites
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GB/T 40007-2021
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Nanotechnology - Contacting methods for measuring the resistivity of nanomaterials - General rules
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GB/T 1425-2021
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Determination of melting temperature range for precious metals and their alloys - Testing method of thermal analysis
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GB/T 15078-2021
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Testing method for contact resistance of precious metals electrical contact materials
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GB/T 24488-2021
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Test method for electrochemical properties of magnesium alloys sacrificial anode
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GB/T 40279-2021
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Test method for thickness of films on silicon wafer surface - Optical reflection method
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GB/T 40296-2021
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Practical superconducting wires - Twist pitch measurement method of Nb-Ti and Nb3Sn composite superconductors
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GB/T 40320-2021
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Measuring method for mechanical melting temperature of aluminum alloy
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GB/T 40380.1-2021
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Metallic powders - Determination of apparent density and flow rate at elevated temperatures - Part 1: Determination of apparent density at elevated temperatures
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GB/T 40380.2-2021
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Metallic powders - Determination of apparent density and flow rate at elevated temperatures - Part 2: Determination of flow rate at elevated temperatures
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GB/T 41079.1-2021
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Test methods for physical properties of liquid metals - Part 1: Determination of density
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GB/T 41155-2021
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Sintered metal materials, excluding hardmetals - Fatigue test pieces
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GB/T 8643-2021
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Determination of lubricant content in lubricated metal-powder mixes - Soxhlet extraction method
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GB/T 23605-2020
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Determination of β transus temperature of titanium alloys
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GB/T 38786-2020
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Testing method for cleanliness of magnesium and magnesium alloy ingots
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GB/T 38804-2020
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Test method for oxidation of metallic materials exposed in high-temperature steam
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GB/T 5252-2020
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Test method for dislocation density of monocrystal germanium
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GB/T 8763-2020
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Test methods for gas absorption characteristic of non-evaporation gettering materials and products
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GB/T 38980-2020
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Test method for artificial defect sizes of zirconium tube flaw detection comparison samples
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GB/T 39042-2020
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Measurement of the magnetic properties of electrical steels by means of a single sheet tester--H-coil method
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GB/T 8760-2020
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Test method for dislocation density of monocrystal gallium arsenide
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GB/T 25897-2020
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Residual resistance ratio measurement. Residual resistance ratio of Nb-Ti and Nb[3]Sn composite superconductors
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GB/T 351-2019
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Metallic Materials - Resistivity Measurement Method
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GB/T 19289-2019
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Methods of measurement of resistivity, density and stacking factor of electrical steel strip and sheet
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GB/T 37561-2019
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Standard practice for de-agglomeration of refractory metal powders and their compounds prior to particle size analysis
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GB/T 10129-2019
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Methods of measurement of magnetic properties of electrical steel strip and sheet at medium frequencies
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GB/T 18502-2018
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Critical current measurement -- DC critical current of Ag-and/or Ag alloy-sheathed Bi-2212 and Bi-2223 oxide superconductors
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GB/T 22586-2018
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Electronic characteristic measurements -- Surface resistance of superconductors at microwave frequencies
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GB/T 11107-2018
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Metallic and its compound powder -- Determination of specific surface and particle size -- Air permeating method
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GB/T 36705-2018
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Test method for carrier concentration of gallium nitride substrates -- Raman spectrum method
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GB/T 5167-2018
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Sintered metal materials and hard metals -- Determination of electrical resistivity
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GB/T 1550-2018
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Test methods for conductivity type of extrinsic semiconducting materials
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GB/T 19921-2018
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Test method for particles on polished silicon wafer surfaces
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GB/T 26068-2018
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Test method for carrier recombination lifetime in silicon wafers and silicon ingots -- Non-contact measurement of photoconductivity decay by microwave reflectance method
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GB/T 37201-2018
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Electrochemical performance test of lithium nickel cobalt manganese oxide - Test method for discharge specific capacity and charge-discharge coulombic efficiency of the first cycle
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GB/T 37207-2018
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Electrochemical performance test of lithium nickel cobalt manganese oxide - Test method for discharge plateau capacity ratio and cycle life
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GB/T 37213-2018
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Test method for silicon brick dimension -- Laser technology method
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GB/T 2522-2017
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Methods of test for the determination of coating insulation resistance and coating adhesion of electrical strip and sheet
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GB/T 19346.1-2017
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Amorphous and nanocrystalline alloys measurement methods -- Part 1: AC magnetic properties by the use of ring specimens
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GB/T 8753.1-2017
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Anodizing of aluminum and its alloys - Assessment of quality of sealed anodic oxidation coatings - Part 1: Measurement of the loss of mass after immersion in acid solution(s)
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GB/T 33908-2017
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Technical specification for testing of liquidus temperature of the electrolyte
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GB/T 19346.2-2017
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Methods of measurement for amorphous and nanocrystalline alloys -- Part 2: Lamination factor of amorphous alloy strips
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GB/T 34190-2017
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Surface coating weight (thickness) of electrical steel - X-ray spectrometric method
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GB/T 34210-2017
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Test method for determining the orientation of sapphire single crystal
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GB/T 34482-2017
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Determination of Thermal Transmittance for Architecture Aluminum Alloy Thermal Barrier Profiles
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GB/T 34612-2017
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Measurement method for X-ray double crystal diffraction rocking curve of sapphire crystals
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GB/T 4104-2017
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Determination of whiteness for zinc oxide produced by direct process
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GB/T 22587-2017
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Matrix to superconductor volume ratio measurement -- Copper to superconductor volume ratio of Cu/Nb-Ti composite superconducting wires
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GB/T 32791-2016
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Electromagnetic (eddy-current) examination method for electrical conductivity of copper and copper alloys
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GB/T 31474-2015
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Soldering fluxes for high-quality interconnections in electronics assembly
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GB/T 31475-2015
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Requirements for solder paste for high-quality interconnections in electronics assembly
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GB/T 31476-2015
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Requirements for solders for high-quality interconnections in electronics assembly
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GB/T 31522-2015
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Matrix to superconductor volume ratio measurement -- Copper to non-copper volume ratio of Nb (3) Sn composite superconducting wires
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GB/T 31527-2015
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Mechanical properties measurement -- Room temperature tensile test of NbTi/Cu composite superconductors
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GB/T 31780-2015
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Critical temperature measurement -- Critical temperature of composite superconductors by a resistance method
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GB/T 32188-2015
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Test method for full width at half maximum of double crystal X-ray rocking curve of GaN single crystal substrate
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GB/T 32189-2015
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Test method for surface roughness of GaN single crystal substrate by atomic force microscope
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GB/T 32278-2015
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Test method for flatness of monocrystalline silicon carbide wafers
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GB/T 32280-2015
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Test method for warp of silicon wafers -- Automated non-contact scanning method
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GB/T 32282-2015
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Test method for dislocation density of GaN single crystal -- Cathodoluminescence spectroscopy
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GB/T 30537-2014
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Superconductivity -- Measurements for bulk high temperature superconductors -- Trapped flux density of large grain oxide superconductors
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GB/T 30653-2014
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Test method for crystal quality of Ⅲ-nitride epitaxial layers
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GB/T 30654-2014
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Test method for lattice constant of Ⅲ-nitride epitaxial layers
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GB/T 30655-2014
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Test methods for internal quantum efficiency of nitride LED epitaxial layers
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GB/T 30857-2014
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Standard test method for thickness and thickness variation on sapphire substrates
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GB/T 30859-2014
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Test method for warp and waviness of silicon wafers for solar cells
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GB/T 30860-2014
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Test methods for surface roughness and saw mark of silicon wafers for solar cells
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GB/T 30869-2014
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Test method for thickness and total thickness variation of silicon wafers for solar cell
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GB/T 31352-2014
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Test methods for warp of sapphire substrates
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GB/T 31353-2014
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Test methods for bow of sapphire substrates
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GB/T 30140-2013
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Measuring method for the shielding effectiveness of magnetic material in low frequency alternating magnetic field
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GB/T 28871-2012
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Critical current measurement -- DC critical current of Nb3Sn composite superconductors
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GB/T 25897-2010
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Superconductivity: Residual resistance ratio measurement of Nb-Ti composite superconductors
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GB/T 6146-2010
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Test method for resistivity of precision resistance alloys
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GB/T 24271-2009
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Specification for strip component of thermostat metals
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GB/T 24272-2009
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Test method for mechanical torque rate of spiral coils of thermostat metal
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GB/T 24297-2009
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The test method for thermal deflection rate of spiral and helix coils of thermostat bimetal
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GB/T 24298-2009
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Standard test method for cross curvature of thermostat metals
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GB/T 24299-2009
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Test method for the mechanical life of snap action discs of thermostat bimetal
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GB/T 24488-2009
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Test method for electrochemical properties of magnesium alloys sacrificial anode
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GB/T 13012-2008
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Methods of measurement of d.c. magnetic properties of magnetically soft materials
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GB/T 13789-2008
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Methods of measurement of the magnetic properties of magnetic sheet and strip by means of a single sheet tester
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GB/T 21546-2008
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Critical current measurement -- DC critical current of Nb-Ti composite superconductors
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GB/T 22586-2008
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Measurements of surface resistance of high temperature superconductor thin film at microwave frequencies
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GB/T 22587-2008
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Matrix to superconductor volume ratio measurement -- Copper to superconductor volume ratio of Cu/Nb-Ti composite superconductors
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