TY - BOOK
T1 - High pressure comparisons between seven European National Laboratories
T2 - Range 50 MPa to 500 MPa
AU - Rantanen, Markku
AU - Semenoja, Sari
AU - Ackerholm, Måns
AU - Condereys, Antoine
AU - Krajicek, Zdenek
AU - Sabuga, Wladimir
AU - Verbeek, Jos
AU - Wüthrich, Christian
PY - 2007
Y1 - 2007
N2 - An inter-comparison in the high oil pressure range was
arranged in 2005-2007. The participating laboratories
were CMI/Czech Republic, Metas/Switzerland,
MIKES/Finland, NMi-VSL/The Netherlands, PTB/Germany,
SMD/Belgium and SP/Sweden. CMI, Metas, NMi-VSL and PTB
are pressure laboratories of the primary level, and the
three others are traceable to LNE/France. The transfer
standard was a Desgranges & Huot piston-cylinder unit
with a nominal effective area of 1,96 mm², mounted in a
D&H 5316 balance body. The participants determined the
effective area at ten nominal pressures from 50 MPa to
500 MPa in steps of 50 MPa. All the results were in a
good agreement with the reference values, calculated as
weighted means of the results from the four primary level
laboratories. The results fully support the uncertainties
claimed in the CMC tables of the participants. The
transfer standard was not as stable as expected, and the
uncertainties of the reference values were to some extent
increased by the observed drift.
AB - An inter-comparison in the high oil pressure range was
arranged in 2005-2007. The participating laboratories
were CMI/Czech Republic, Metas/Switzerland,
MIKES/Finland, NMi-VSL/The Netherlands, PTB/Germany,
SMD/Belgium and SP/Sweden. CMI, Metas, NMi-VSL and PTB
are pressure laboratories of the primary level, and the
three others are traceable to LNE/France. The transfer
standard was a Desgranges & Huot piston-cylinder unit
with a nominal effective area of 1,96 mm², mounted in a
D&H 5316 balance body. The participants determined the
effective area at ten nominal pressures from 50 MPa to
500 MPa in steps of 50 MPa. All the results were in a
good agreement with the reference values, calculated as
weighted means of the results from the four primary level
laboratories. The results fully support the uncertainties
claimed in the CMC tables of the participants. The
transfer standard was not as stable as expected, and the
uncertainties of the reference values were to some extent
increased by the observed drift.
KW - interlaboratory comparison
KW - oil pressure
M3 - Report
SN - 978-952-5610-37-6
T3 - MIKES Publication
BT - High pressure comparisons between seven European National Laboratories
PB - Centre of Metrology and Accreditation (MIKES)
CY - Espoo
ER -