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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| GB 9706.228-2020 |
Medical electrical equipment—Part 2-28: Particular requirements for the basic safety and essential performance of X-ray tube assemblies for medical diagnosis 医用电气设备 第2-28部分：医用诊断X射线管组件的基本安全和基本性能专用要求 |
China National Standards 28: |
 English PDF |
| GB/T 26958.28-2020 |
Geometrical product specifications (GPS)—Filtration—Part 28: Profile filters：End effects 产品几何技术规范（GPS） 滤波 第28部分: 轮廓滤波器 端部效应 |
China National Standards 28: |
English PDF |
| GB/T 3780.28-2020 |
Carbon black—Part 28: Determination the content of polycyclic aromatic hydrocarbons 炭黑 第28部分：多环芳烃含量的测定 |
China National Standards 28: |
English PDF |
| GB/T 20975.28-2019 |
Methods for chemical analysis of aluminium and aluminium alloys—Part 28:Determination of cobalt content—Flame atomic absorption spectrometry 铝及铝合金化学分析方法 第28部分：钴含量的测定 火焰原子吸收光谱法 |
China National Standards 28: |
English PDF |
| GBZ/T 300.128-2018 |
Determination of toxic substances in workplace air - Part 128: methacrylates 工作场所空气有毒物质测定-第128部分：甲基丙烯酸酯类 |
China National Standards 28: |
English PDF |
| GB/T 15670.28-2017 |
Toxicological test methods for pesticides registration—Part 28: Combined chronic toxicity/carcinogenicity study 农药登记毒理学试验方法 第28部分：慢性毒性与致癌合并试验 |
China National Standards 28: |
English PDF |
| GB 19079.28-2013 |
Operation conditions and technical requirements for gymnasium and playground―Part 28: Wushu sanda place 体育场所开放条件与技术要求 第28部分：武术散打场所 |
China National Standards 28: |
English PDF |
| GB 30000.28-2013 |
Rules for classification and labelling of chemicals - Part 28: Hazardous to the aquatic environment 化学品分类和标签规范 第28部分：对水生环境的危害 |
China National Standards 28: |
English PDF |
| GB/T 4324.28-2012 |
Methods for chemical analysis of tungsten - Part 28: Determination of molybdenum content - The thioyanate spectrophotometry 钨化学分析方法 第28部分：钼量的测定 硫氰酸盐分光光度法 |
China National Standards 28: |
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| GB/T 14506.28-2010 |
Methods for chemical analysis of silicate rocks - Part 28: Determination of 16 major and minor elements content 硅酸盐岩石化学分析方法 第28部分：16个主次成分量测定 |
China National Standards 28: |
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| GB/T 9649.28-2009 |
Terminology classification and code of geology and mineral resources - Part 28: Geophysical exploration 地质矿产术语分类代码 第28部分：地球物理勘查 |
China National Standards 28: |
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| GB/T 5169.28-2008 |
Fire hazard testing for electric and electronic products - Part 28: Smoke obscuration - Small-scale static test - Materials 电工电子产品着火危险试验 第28部分：烟模糊 小规模静态试验方法 材料 |
China National Standards 28: |
English PDF |
| GB/T 18311.28-2007 |
Fibre optic interconnecting devices and passive components - Basic test and measurement procedures - Part 3-28: Examinations and measurements - Transient loss 纤维光学互连器件和无源器件 基本试验和测量程序 第3-28部分: 检查和测量 瞬间损耗 |
China National Standards 28: |
English PDF |
| GB/T 17980.128-2004 |
Pesticide--Guidelines for the field efficacy trials(Ⅱ)--Part 128:Herbicides against weeds in cotton 农药 田间药效试验准则(二) 第128部分:除草剂防治棉花田杂草 |
China National Standards 28: |
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| GB/T 5271.28-2001 |
Information technology--Vocabulary--Part 28:Artificial intelligence--Basic concepts and expert system 信息技术 词汇 第28部分:人工智能 基本概念与专家系统 |
China National Standards 28: |
English PDF |
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