H21 金属物理性能试验方法 标准查询与下载

YB/T 6162-2024 取向电工钢涂层对基体的张应力测试方法

本文件规定了取向电工钢的涂层对基体的张应力测试方法的原理、试样、测量步骤、计算、数值修约、测试报告。 本文件适用于公称厚度为0.15mm～0.35mm的取向电工钢带（片）。其他规格的电工钢带（片）可参照使用。

Test method for tensile stress of oriented electrical steel coating on substrate

XB/T 702-2022 金属氢化物-镍电池负极用稀土系贮氢合金粉电化学性能的测试 三电极体系测试法

本文件规定了金属氢化物-镍电池负极用稀土系贮氢合金粉电化学性能测试方法中的三电极体系测试方法。

Three-electrode system test method for testing the electrochemical properties of rare earth hydrogen storage alloy powder for metal hydride-nickel battery negative electrodes

YS/T 1491-2021 镍基高温合金粉末球形率测定方法 扫描电镜法

Method for determination of sphericity of nickel-based high-temperature alloy powder by scanning electron microscopy

YS/T 1161.4-2021 拟薄水铝石分析方法 第4部分：氧化钠含量的测定

Methods for analysis of pseudoboehmite Part 4: Determination of sodium oxide content

YS/T 1490-2021 镍基高温合金粉末夹杂物含量检测方法

Detection method for inclusion content in nickel-based high-temperature alloy powder

YS/T 738.5-2020 填料用氢氧化铝分析方法 第5部分：粒度的测定

Methods for analysis of aluminum hydroxide for fillers Part 5: Determination of particle size

DIN CEN/TS 17510:2020 从报废轮胎中获得的材料. 粉末比表面积的测定. 基于氪吸附的方法; 德文版 CEN/TS 17510-2020

This document specifies a method for the determination of low specific surface area of powders ELTs rubber by measuring the amount of physically adsorbed krypton gas and applying the theoretical multipoint Brunnauer, Emmett and Teller (BET) method. This document defines a specifi

Materials obtained from end-of-life tyres - Determination of the specific surface area of powders - Method based on krypton adsorption; German version CEN/TS 17510:2020

YS/T 1309-2019 钛及钛合金涂层 绝缘性能检测方法

Testing method for insulation properties of titanium and titanium alloy coatings

YS/T 1257-2018 有色金属材料 熔化和结晶热焓试验 差示扫描量热法

Differential scanning calorimetry for melting and crystallization enthalpy tests of non-ferrous metal materials

YS/T 1258-2018 有色金属材料 熔融和结晶温度试验 热分析方法

Thermal Analysis Methods for Testing Melting and Crystallization Temperatures of Nonferrous Metal Materials

YS/T 679-2018 非本征半导体中少数载流子扩散长度的测试 表面光电压法

Surface photovoltage method for measuring minority carrier diffusion length in extrinsic semiconductors

YS/T 1256-2018 有色金属材料 比热容试验 差示扫描量热法

Differential scanning calorimetry for specific heat capacity test of non-ferrous metal materials

ISO 4490:2018 金属粉末.用校准漏斗(霍尔流量计)测定流动率

This document specifies a method for determining the flow rate of metallic powders, including powders for hard metals, by means of a calibrated funnel (Hall flowmeter). The method is applicable only to powders which flow freely through the specified test orifice.

Metallic powders - Determination of flow rate by means of a calibrated funnel (Hall flowmeter)

DB44/T 2042-2017 刀具锋利度和耐用度试验方法

本标准规定了刀具锋利度和耐用度试验方法的术语和定义、试验原理、试验环境、试验程序、试验结果及报告。

Test method for sharpness and durability of knives

YB/T 4618-2017 耐指纹镀锌钢板表面电阻试验方法

Test method for surface resistance of fingerprint-resistant galvanized steel sheets

ASTM A340-17a 与磁性试验有关的符号和定义的标准术语

Standard Terminology of Symbols and Definitions Relating to Magnetic Testing

BS ISO 18203:2016 钢材. 表面硬化层厚度的测定

Steel. Determination of the thickness of surface-hardened layers

IEC 60444-8:2016 石英晶体元件参数的测量.第8部分:表面贴装石英晶体元件用测量夹具

This part of IEC 60444 describes test fixtures suitable for leadless surface mounted quartz crystal units in enclosures as defined in IEC 61837 (all parts). These fixtures allow the measurement of (series) resonance frequency, (series) resonance resistance, and equivalent electrical circuit parameters L1, C1 and C0 using the measurement techniques specified in IEC 60444-5 and for the determination of load resonance frequency and load resonance resistance according to IEC TR 60444-4 and IEC 60444-11. Two test fixtures are described in this document: 1) A fixture using the -network circuit with electrical values as described in IEC 60444-1 for measurements in transmission mode up to 500 MHz. This fixture includes optional means to add physical load capacitors for the measurement of load resonance parameters up to 30 MHz in accordance with IEC 60444-4. The range of load capacitance is 10 pF or more. Calibration of the measurement system and CL adapter board is explained hereinafter. 2) A fixture based on the reflection method, suitable for a frequency range up to 1200 MHz. No provisions for adding a physical load capacitance are anticipated. Load resonance parameters can be measured by using the method of IEC 60444-11.

Measurement of quartz crystal unit parameters - Part 8: Test fixture for surface mounted quartz crystal units

YS/T 1161.3-2016 拟薄水铝石分析方法 第3部分：孔容和比表面积的测定 氮吸附法

Methods for analysis of pseudoboehmite Part 3: Determination of pore volume and specific surface area Nitrogen adsorption method

YS/T 1124-2016 磁性溅射靶材透磁率测试方法

Test method for magnetic permeability of magnetic sputtering targets