The CMA humidity standard

Martti Heinonen

doi:10.1016/0263-2241(96)00026-7

The CMA humidity standard

Martti Heinonen

BA17 National metrology institute VTT MIKES

Research output: Contribution to journal › Article › Scientific › peer-review

10 Citations (Scopus)

Abstract

A two-temperature humidity generator has been developed at the Centre for Metrology and Accreditation (CMA) in order to have a reliable humidity standard. The system has been tested and the analysis of uncertainty has been carried out. The disturbance of the saturation equilibrium, the accuracy of temperature measurements, pressure differences, leaks, desorption and contamination have been investigated. The measurement range of the system is from -40 to +60°C with an uncertainty of less than ±0.25°C (k = 2). The system was found suitable to be used as the CMA humidity standard.

Original language	English
Pages (from-to)	183-188
Number of pages	6
Journal	Measurement
Volume	17
Issue number	3
DOIs	https://doi.org/10.1016/0263-2241(96)00026-7
Publication status	Published - 1 Jan 1996
MoE publication type	A1 Journal article-refereed

Keywords

Analysis of uncertainty
Dew-point
Humidity standard
Saturation

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10.1016/0263-2241(96)00026-7

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