ＥＡＬ的认可方针Ｒ．Ｋａａｒｌｓ１引言国际社会对测量标准化的要求已有一百多年的历史了，而实际上，只是在近五十年当中才建立了一些对传递和使用测量标准的实验室进行能力考核的正式机构。在此之前，有些公司曾制定了自己的评估计划，这样虽有助于提高采购的有效性，... EAL’s approval policy Kaarls1 INTRODUCTION The international community has been testing the standardization of measurement more than a hundred years ago. In fact, it is only in the past 50 years that some formal agencies have been established to test the ability of laboratories to transmit and use measurement standards. Prior to this, some companies have developed their own evaluation plan, although this will help to improve the effectiveness of procurement, ...