摘 要：JJG 141——2013《工作用貴金屬熱電偶檢定規(guī)程》實施后，為了解我國校準貴金屬熱電偶的能力，中國合格評定國家認可委員會（CNAS）組織工作用貴金屬熱電偶校準能力驗證，全國28個省、市、自治區(qū)的88家實驗室參加。該研究主要介紹工作用貴金屬熱電偶校準能力驗證計劃的試驗背景和實施過程，包括方案設計、樣品制備、穩(wěn)定性試驗、結(jié)果統(tǒng)計等，并對能力驗證結(jié)果進行分析。結(jié)果顯示：校準工作用貴金屬結(jié)果滿意率為98.86%，參加能力驗證的絕大多數(shù)實驗室可以按照修訂后的新規(guī)程準確校準工作用貴金屬熱電偶，我國校準工作用貴金屬熱電偶實驗室具有較高的水平。
關鍵詞：貴金屬；熱電偶；能力驗證；實驗室；校準
文獻標志碼：A 文章編號：1674-5124（2015）12-0017-04
Proficiency testing for calibrating working noble metal thermocouple
FU Zhiyong， HAN Zhixin
（National Institute of Measurement and Testing Technology，Chengdu 610021，China）
Abstract: In order to understand the capability of working noble metal thermocouple after implementation the JJG 141——2013 Verification Regulation of Working Noble metal Thermocouple. China National Accreditation Service for Conformity Assessment（CNAS） organized the proficiency test of working noble metal thermocouple.88 laboratories form 28 provinces/cities/municipals took part in the proficiency test.In this paper， the implementation process of the test was described， including project design，sample preparation，homogeneity stability test，result statistic and analysis， etc. The resulted showed that 98.86% laboratories have satisfactory results.In conclusion，most laboratories taking part in the proficiency test have good competence in calibrating working noble metal thermocouple.
Keywords: noble metal； thermocouple； proficiency testing； laboratory； calibrating
