Fedchak, J.
(2014),
Bilateral key comparison CCM.P-K3.1 for absolute pressure measurements from 3 × 10-6 Pa to 9 × 10-4 Pa, Metrologia, [online], https://doi.org/10.1088/0026-1394/51/1A/07005
(Accessed March 13, 2025)
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Bilateral key comparison CCM.P-K3.1 for absolute pressure measurements from 3 × 10-6 Pa to 9 × 10-4 Pa
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Author(s)
Abstract
This report describes a bi-lateral key-comparison between the National Institute of Standards and Technology (NIST) and Physikalisch-Technische Bundesanstalt (PTB) for absolute pressure in the range of 3×10-6 Pa to 9×10-4 Pa. This comparison was a follower to the CCM.P-K3. Two ionization gauges and two spinning rotor gauges (SRGs) were used as the transfer standards for the comparison. The SRGs were used to compare the standards at a pressure of 9×10-4 Pa and to normalize the ionization gauge readings. The two ionization gauges were used to compare the standards in the pressure range of 3×10-6 Pa to 3×10-4 Pa. Both laboratories used dynamic expansion chambers as standards in the comparison. The two labs showed excellent agreement to each other and to the KCRV over the entire rangeCitation
Metrologia
Volume
51
Pub Type
Journals
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Keywords
Ionization Gauges, key comparison, low pressure standard, vacuum standard
Citation
Issues
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Created January 1, 2014, Updated November 10, 2018