CNAS-RL02：2012《能力验证规则》中规定,申请认可和已获认可的实验室,根据检验领域和项目,选择1次/1年或1次/2年的周期参加相关项目的能力验证或测量审核,没有能力验证计划的项目可选择与权威机构进行比对,也可以选择参加权威机构组织的实验室间比对,证明其检验项目在该领域的检验能力。为此,国家合成橡胶质量监督检验中心策划组织46家合成橡胶行业所属的实验室,开展了丁二烯橡胶门尼粘度的比对工作。丁二烯橡胶门尼粘度实验室间的比对,比对结果统计与分析采用稳健统计技术,Z值绝对值平均值均小于0．87,满意结果在95%以上,有2个离群结果,占样本总数的4．4%,各实验室的测试水平较以往有大幅度提升。
《The ability to verify the rules》 of CNAS-RL02:2012 specifies:The laboratory ask for recognition and accredited laboratory,according to the test area and project,could select once a year or 2 years to participate in the ability verification or measurement audit of relevant projects,the labs without proof test projects can prove their test capacity through comparison with authority laboratories organized by authority. Therefore,national quality supervi-sion and inspection center of synthetic rubber planned and organized 46 laboratories in synthetic rubber industry, carried out the butadiene rubber Mooney viscosity comparison work. Comparison of butadiene rubber Mooney vis-cosity between the laboratories,each participating laboratory used Mooney viscometer calibrated with standard mate-rial,the average of Z absolute values was below 0. 87,satisfactory results exceeded 95%,two results deviated from the group,accounting for 4. 4% of the total number of samples,the laboratory test level has been increased greatly than in the past.
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