The list shows all projects coordinated within the Technical Committee for Length.

Projects TC-L

Reg. No.
Coordinating Institute
Collaboration Type
L 376 1996-01-01 Danish Reference Laboratory for Dimensional Metrology DFM completed Consultation
L 672 2002-09-01 Determination of form/topography of high-quality flats PTB completed Research
L 244 1992-05-01 Development of a Length Bar Interferometer NPL completed Consultation
L 228 1991-01-01 Development of a practical air refractometer METAS completed Research
L 369 1995-06-01 Diameter calibration of cylindrical artefacts with nominal diameters of 2.5 mm PTB completed Comparison
L 406 1997-03-01 Dimensional calibration of small holes PTB completed Comparison
L 1005 2007-06-14 Dimensional measurements - Using AFM and profilometers in Surface Measurement DFM completed Consultation
L 1045 2008-12-01 Direct comparison of 3 optical femtosecond comb generators BEV completed Comparison
L 1495 2020-02-01 Dissemination and verification of dimensional nanometrology technologies NPL in progress Research
L 743 2004-05-15 EURAMET Key Comparison L - K6, CMM 2-D Artifact: Ball Plate PTB completed Comparison
L 1063 2008-08-18 EURAMET link to the CCL key comparison CCL-K11 MIKES completed Traceabillity
L 630 2001-07-01 EUROMET Initiative on Nanometrology METAS completed Research
L 602 2001-06-01 EUROMET key comparison on calibration of long gauge blocks, EUROMET.L-K2 NPL completed Comparison
L 288 1993-10-05 EUROMET-Workshop on 'Temperature Measurement in Dimensional Metrology PTB completed Research
L 654 2002-05-01 Exchange of experience in gauge blocks and material measures of length measurements GUM completed Consultation
L 767 Exchange of experience in length calibration and proficiency testing DFM completed Research
L 1299 2013-10-14 Follow-up of Euromet L-K4.2005 VSL in progress Comparison EURAMET.L-K4.2005.1
L 1490 2020-04-01 High precision flatness over 300 mm PTB in progress Comparison EURAMET.L-S28
L 533 1998-11-01 High precision roundness NPL completed Comparison
L 1489 2020-02-01 High precision roundness measurement by error separation techniques CEM in progress Comparison EURAMET.L-S30
L 275 1993-02-01 Intercomparison for coefficient of thermal expansion of gauge blocks METAS completed Comparison
L 299 1993-10-11 Intercomparison of 127 I2 stabilized He-Ne lasers at 633 nm Aalto completed Comparison
L 379 1996-04-01 Intercomparison of 127-I-2 stabilised He-Ne lasers at 633 nm RISE completed Comparison
L 301 1994-04-01 Intercomparison of calibration facilities for depth setting standards VSL completed Comparison
L 498 1999-09-01 Intercomparison of Iodine stabilised He-Ne lasers at 633 nm BEV completed Comparison
L 707 2003-07-01 Intercomparison of Measurement on Step Height Standards by SPM PTB completed Comparison
L 925 2006-08-01 Intercomparison of Measurements on Step Height Standards by SPM (EURAMET.L-S15.a) PTB completed Comparison EUROMET.L-S15.a
L 600 2001-03-01 Intercomparison of Measurements on Surface Roughness Standards PTB completed Comparison
L 1003 2007-11-09 Intercomparison of Measurements on Surface Texture Standards LNE completed Comparison EURAMET.L-K8
L 361 1995-06-01 Intercomparison of roundness profiles VSL completed Comparison
L 337 1993-07-12 Intercomparison of techniques for identifying CMM geometry errors INRIM completed Comparison
L 390 1997-06-01 Intercomparison of thermal expansion etalons. PTB completed Comparison
L 462 1997-11-03 Intercomparison of ^127 I_2 stabilized 633 nm He-Ne lasers locked by 5th harmonic method MIKES completed Comparison
L 564 2000-04-01 Interferometric and mechanical measurements of gauge blocks GUM completed Consultation
L 618 2000-04-01 Interferometric and mechanical measurements of gauge blocks GUM completed Consultation
L 866 2006-01-01 Interferometric calibration of microdisplacement actuators INRIM completed Research
L 450 1997-11-20 Interferometric measurement of long gauge blocks RISE completed Comparison
L 1016 2008-01-02 Interferometric measurements of gauge blocks DZM completed Consultation
L 914 2006-09-01 Introduction of primary standard of length into a national metrology laboratory MIRS/UM-FS/LTM completed Consultation
L 647 2002-03-01 Investigation of techniques for absolute laser frequency measurements using an optical femtosecond comb generator BEV completed Research
L 1053 2008-07-28 Involute Gear Artifacts PTB completed Comparison EURAMET.L-S24
L 131 1991-01-01 Ion traps for new wavelength and frequency standards NPL completed Research
L 1365 2016-01-01 Key Comparison EURAMET.L-K5.2016 Calibration of a Step Gauge NPL in progress Comparison EURAMET.L-K5.2016
L 1245 2013-01-01 Key comparison on surface roughness standards METAS completed Comparison EURAMET.L-K8.2013
L 438 Laboratory for dimensional measurements of GUM GUM completed Consultation
L 1463 2018-10-22 Laser sources for interferometry NPL in progress Research
L 1012 2008-02-01 Limitations of measuring methods for the depth of the groove DZM completed Research
L 1343 2014-11-01 MacroScale conference series PTB ongoing Research
L 1488 2020-06-01 Measurement of a 1 mm Stage Micrometer BEV in progress Comparison EURAMET.L-S29
L 1242 2013-09-01 Measurement of areal roughness parameters PTB in progress Research
144 result(s)