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随着社会经济的发展、科学技术的进步和国际国内物资交流频繁，分析测试量值的准确性和可比性日益为人们所关注。国际计量委员会1992年还专门设立了化学计量工作组进行化学量值的国际对比研究。标准物质是一种或多种特性已经被确定了的物料或物质，它具有高度的均匀性、稳定性
With the development of society and economy, the progress of science and technology and the frequent exchange of materials both at home and abroad, the accuracy and comparability of analytical test values are increasingly concerned by people. In 1992, the International Metrology Commission also set up a special international working group on chemical measurement to conduct an international comparative study of chemical values. Reference material is one or more characteristics of the material or substance has been identified, it has a high degree of uniformity, stability