national reference standard

常见例句

The results are in agreement with certified values of first grade national standard reference materials.
经国家一级标准物质分析验证，测定值与标准值相符。
www.ykcs.ac.cn
Meanwhile, the analytical results of the 5 trace elements in the national standard reference samples of tea-leaf(GBW08513) were in good agreement with the certified values.
并采用类似方案处理国家茶树叶成份分析标准物质（GBW08513），进行了验证性实验，测定值在参考值范围内。
www.bimag.com.cn
Rigaku 3080E3 X-ray spectrometer was applied to the determination of major and trace mineral elements in muskmelon, calibration was made by using national plant standard reference materials.
报道了日本理学3080E3型X-射线荧光光谱仪在测定甜瓜样品常量和微量矿质元素中的应用。