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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| GB/T 43884-2024 |
Metallic coatings - Zinc for steel parts diffusion layer - zinc infiltration - technical requirements {译} 金属覆盖层-钢铁制件的锌扩散层-渗锌-技术要求 |
China National Standards diffusion |
 English PDF |
| GB/T 21228.2-2023 |
Acoustics - Surface sound scattering properties - Part 2: Free-field directional diffusion coefficient measurement {译} 声学 表面声散射特性 第2部分：自由场方向性扩散系数测量 |
China National Standards diffusion |
English PDF |
| GB/T 41964-2022 |
Photography Washing Waste Liquid Determination of Ammonia Nitrogen Content (Micro-diffusion Method) {译} 摄影 冲洗废液 氨态氮含量的测定 (微扩散法) |
China National Standards diffusion |
English PDF |
| GB/T 41965-2022 |
Photography Flushing Waste Liquid Determination of Total Content of Ammonia Nitrogen (Micro-diffusion Kjeldahl Nitrogen Method) {译} 摄影 冲洗废液 氨态氮总含量的测定 (微扩散凯氏氮法) |
China National Standards diffusion |
English PDF |
| GB/T 42160-2022 |
Grain Boundary diffusion NdFeB Permanent Magnets {译} 晶界扩散钕铁硼永磁材料 |
China National Standards diffusion |
English PDF |
| GB/T 42272-2022 |
Test method for chloride ion diffusion coefficient of cement mortar {译} 水泥胶砂氯离子扩散系数检测方法 |
China National Standards diffusion |
English PDF |
| GB/T 39539-2020 |
Technical requirements for determination of gas diffusion coefficient in shale reservoir 页岩储层气体扩散系数的测定技术要求 |
China National Standards diffusion |
English PDF |
| GB/T 37098-2018 |
Rating requirements for knowledge diffusion competence of innovation method 创新方法知识扩散能力等级划分要求 |
China National Standards diffusion |
English PDF |
| GB/T 35516-2017 |
Light diffusion polycarbonate for LED luminaire LED灯罩用光扩散聚碳酸酯 |
China National Standards diffusion |
English PDF |
| GB/T 35414-2017 |
Requirements of oxygen conditioning for indoor oxygen diffusion in plateau area 高原地区室内空间弥散供氧（氧调）要求 |
China National Standards diffusion |
English PDF |
| GB/T 5275.8-2014 |
Gas analysis―Preparation of calibration gas mixtures using dynamic volumetric methods―Part 8: diffusion method 气体分析 动态体积法制备校准用混合气体 第8部分：扩散法 |
China National Standards diffusion |
English PDF |
| GB/Z 28820.1-2012 |
Long-term radiation ageing in polymers - Part 1: Techniques for monitoring diffusion-limited oxidation 聚合物长期辐射老化 第1部分：监测扩散限制氧化的技术 |
China National Standards diffusion |
English PDF |
| GB/T 24414-2009 |
Silver halid diffusion CTP plates 银盐（CTP）版 |
China National Standards diffusion |
English PDF |
| GB/T 18380.22-2008 |
Tests on electric and optical fibre cables under fire conditions - Part 22:Test for vertical flame propagation for a single small insulated wire or cable - Procedure for diffusion flame 电缆和光缆在火焰条件下的燃烧试验 第22部分：单根绝缘细电线电缆火焰垂直蔓延试验 扩散型火焰试验方法 |
China National Standards diffusion |
English PDF |
| GB/T 20944.1-2007 |
Textiles - Evaluation for antibacterial activity - Part 1: Agar diffusion plate method 纺织品 抗菌性能的评价 第1部分：琼脂平皿扩散法 |
China National Standards diffusion |
English PDF |
| GB/T 5169.7-2001 |
Fire hazard testing for electric and electronic products--Test methods--diffusion type and premixed type flame test methods 电工电子产品着火危险试验 试验方法 扩散型和预混合型火焰试验方法 |
China National Standards diffusion |
English PDF |
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