NMIM Publications

Calibration of Relative Humidity Devices

Calibration of Relative Humidity Devices
/ Title

Inter-Laboratory Comparison for Calibration of Relative Humidity Devices Among Accredited Laboratories in Malaysia

/ Authors

F. Hussain, S. Khairuddin, H. Othman

/ Journal

International Journal of Thermophysics

/ Abstract

An inter-laboratory comparison in relative humidity measurements among accredited laboratories has been coordinated by the National Metrology Institute of Malaysia. It was carried out to determine the performance of the participating laboratories. The objective of the comparison was to acknowledge the participating laboratories competencies and to verify the level of accuracies declared in their scope of accreditation, in accordance with the MS ISO/IEC 17025 accreditation.

The measurement parameter involved was relative humidity for the range of 30 to 90 %rh at a nominal temperature of 50 C. Eight accredited laboratories participated in the inter-laboratory comparison. Two units of artifacts have been circulated among the participants as the transfer standards.

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