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EURAMET.L-K8.n01

Metrology area, Sub-field	Length, Dimensional Metrology
Description	Calibration of surface roughness parameters
Time of measurements	2020 - 2021
Status	Measurements in progress

References	EURAMET.L-K8.n01 Technical protocol
Measurand	Surface texture parameters: d, Ra, Rq, Rz, Rt, RSm Nominal values : (Type A2 standard) d : from 0.15 μm to 9.00 μm (Type C3 standard) Ra : 2.3 μm, RSm 200 μm (Type D1 Standard) Ra : 0.5 μm, Rz: 3 μm (Type D2 Standard) Ra : 80 nm, Rz : 450 nm, 0.15 µm to 10 µm
Transfer device	Four surface texture standards (ISO 5436-1 ) are used for the comparison: 1 type A2, 1 type C3, 1 type D1 and 1 type D2.

Comparison type	Key Comparison
Consultative Committee	CCL (Consultative Committee for Length )
Conducted by	EURAMET (European Association of National Metrology Institutes)
RMO Internal Identifier	EURAMET Project No 1502
Pilot institute	PTB Physikalisch-Technische Bundesanstalt Germany
Contact person	Lena Jung-Albrecht 0049 531 592 5124

Pilot laboratory
PTB	Physikalisch-Technische Bundesanstalt, Germany, EURAMET

BEV	Bundesamt für Eich- und Vermessungswesen, Austria, EURAMET

CEM	Centro Español de Metrologia, Spain, EURAMET

CMI	Czech Metrology Institute, Czechia, EURAMET

DFM	Danish Fundamental Metrology A/S, Denmark, EURAMET

FSB-LPMD

FSB - Laboratory for precise measurement of length, Croatia, EURAMET

GUM	Glowny Urzad Miar, Central Office of Measures, Poland, EURAMET

INM	National Institute of Metrology, Romania, EURAMET

METAS

Federal Institute of Metrology, Switzerland, EURAMET

NIM	National Institute of Metrology, China, APMP

NMIA	National Measurement Institute, Australia, Australia, APMP

NPL	National Physical Laboratory, United Kingdom, EURAMET

VNIIMS

Russian Scientific Research Institute for Metrological Service, Rosstandart, Russian Federation, COOMET

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