Where traceability of measurements to si units is not possible and / or not relevant, the same requirements for traceability to, for example, certified reference materials, agreed methods and / or consensus standards, are required as for calibration laboratories ( see 5.6 . 2.1 . 2 ) 2測(cè)量無(wú)法溯源到si單位或與之無(wú)關(guān)時(shí),與對(duì)校準(zhǔn)實(shí)驗(yàn)室的要求一樣,要求測(cè)量能夠溯源到諸如有證參考物質(zhì)、約定的方法和(或)協(xié)議標(biāo)準(zhǔn)(見(jiàn)5.6.2.1.2)