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Short- and long-term stability of electrolytic conductivity certified reference materials
Accreditation and Quality Assurance ( IF 0.9 ) Pub Date : 2020-02-18 , DOI: 10.1007/s00769-019-01416-5
L. Deleebeeck , J. Avnskjold , A. Snedden

Electrolytic conductivity is a common parameter measured within industry. Proper usage of electrolytic conductivity sensors requires the periodic calibration using solutions of known conductivity. This parameter can be disseminated through the use of certified reference materials (CRMs) produced according to ISO 17034. A part of the certification of reference materials relates to their stability both in the material they are packaged in and as a function of time, both at the short- and long-time scales. Electrolytic conductivity CRMs produced at DFM A/S are evaluated for the stability in various bottle types, and under various storage and transport conditions. Materials with nominal conductivity values between 10 mS m −1 and 10 mS m −1 are shown to be stable at short-time (~ 1 month) and long-time (expected shelf life and beyond) scales.

中文翻译:

电解电导率认证标准物质的短期和长期稳定性

电解电导率是工业内测量的常用参数。正确使用电解电导率传感器需要使用已知电导率的溶液进行定期校准。该参数可以通过使用根据 ISO 17034 生产的认证参考材料 (CRM) 进行传播。参考材料认证的一部分涉及它们在包装材料中的稳定性和作为时间函数的稳定性,两者都在短期和长期的尺度。对 DFM A/S 生产的 CRM 的电解电导率进行了评估,以评估其在各种瓶子类型以及各种储存和运输条件下的稳定性。标称电导率值介于 10 mS m -1 和 10 mS m -1 之间的材料在短期(约 1 个月)和长期(预期保质期及更长)范围内均表现稳定。
更新日期:2020-02-18
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