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１ 引言由于全球计量互认的需要 ,检定规程应尽量与国际建议ＯＩＭＬＲ１１１一致 ,尤其是标准砝码的等级划分及不确定度评估。为此 ,保留ＪＪＧ９９ -１９９０《砝码》检定规程中的Ｅ１、Ｅ２、Ｆ１、Ｆ２、Ｍ１、Ｍ１１、Ｍ２、Ｍ２２、Ｍ３ 这９个等级而取消其它的等级是合
1 Introduction Due to the need of mutual recognition of global measurement, the verification procedures should be consistent with the international recommendation OIMLR111, especially the classification of the standard weights and the evaluation of the uncertainty. To this end, to retain the JJG99 -1990 “weight” verification procedures in the E1, E2, F1, F2, M1, M11, M2, M22, M3 these nine levels and cancel the other levels are combined