national reference standard

基本解釋

The results are in agreement with certified values of first grade national standard reference materials.
經(jīng)國家一級標(biāo)準(zhǔn)物質(zhì)分析驗證，測定值與標(biāo)準(zhǔn)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.
并采用類似方案處理國家茶樹葉成份分析標(biāo)準(zhǔn)物質(zhì)（GBW08513），進(jìn)行了驗證性實驗，測定值在參考值范圍內(nèi)。
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.
報道了日本理學(xué)3080E3型X-射線熒光光譜儀在測定甜瓜樣品常量和微量礦質(zhì)元素中的應(yīng)用。