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GB standards are the China national standards; Prefix code GB are Mandatory standards, GB/T are Recommended standards; All products or service must be compliance with GB standards; If you want to export products or services to huge Chinese market, need ensure they are meet the requirements of GB china national standards;  We provide Chinese GB standards and English version GB standards  Lookup, Translate, Download, Imported Commodity GB standards Testing and Compliance review services.
  •  China "background" GB Standards English PDF List:
  • Standard  Code Standard Title Standard Class Order
    GB/T 18779.4-2020 Geometrical product specifications (GPS)—Inspection by measurement of workpieces and measuring equipment—Part 4: background on functional limits and specification limits in decision rules
    产品几何技术规范(GPS) 工件与测量设备的测量检验 第4部分:判定规则中功能限与规范限的基础
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    GB/T 35570-2017 Determination of tritium activity concentration in sea water—Low-background liquid scintillation spectrometry method
    海水中氚的测定 低本底液体闪烁能谱法
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    GB/Z 32490-2016 Surface chemical analysis—X-ray photoelectron spectroscopy—Procedures for determining backgrounds
    表面化学分析 X射线光电子能谱 确定本底的程序
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    GB/T 31709-2015 Data processing of background atmospheric carbon dioxide and methane concentration measured by in situ gas chromatographic (GC) system
    气相色谱法本底大气二氧化碳和甲烷浓度在线观测数据处理方法
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    GB/T 31707-2015 Data processing of background atmospheric carbon monoxide concentration measured by in situ gas chromatographic (GC) system
    气相色谱法本底大气一氧化碳浓度在线观测数据处理方法
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    GB/T 31705-2015 In situ mesaurement of background atmospheric carbon dioxide and methane concentration by gas chromatographic(GC) system
    气相色谱法本底大气二氧化碳和甲烷浓度在线观测方法
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    GB 31224-2014 Specifications for observing environs protection of atmosphere background watch station
    气象探测环境保护规范 大气本底站
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    GB/T 30151-2013 Characterization of the spectrum background in HPGe gamma-ray spectrometry
    高纯锗γ谱仪本底谱的特性
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    GB/T 11682-2008 Low background alpha and/or beta measuring instruments
    低本底α和/或β测量仪
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