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Status Key-comparison CCM.FF-K4 Volume calibration at 20 l and 100 ml

Status Key-comparison CCM.FF-K4 Volume calibration at 20 l and 100 ml. Pilot laboratory:. Cenam (Centro Nacional de Metrología). Planned exercise. C1. TS. TS. C2. C2. C1. TS. C2. C1. TS2. TS3. TS2. TS5. TS1. TS6. TS2. TS6. TS4. TS3. TS3. TS1. TS5. TS4. TS5. TS4. TS6.

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Status Key-comparison CCM.FF-K4 Volume calibration at 20 l and 100 ml

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  1. Status Key-comparison CCM.FF-K4Volume calibration at 20 l and 100 ml Pilot laboratory: Cenam (Centro Nacional de Metrología)

  2. Planned exercise C1 TS TS C2 C2 C1 TS C2 C1 TS2 TS3 TS2 TS5 TS1 TS6 TS2 TS6 TS4 TS3 TS3 TS1 TS5 TS4 TS5 TS4 TS6 TS1 C1 C1 C1 C1 C1 C1 C1 C1 C1 C1 C1 C1 C1 C1 C1 C1 C1 C1 CENAM: produced and tested the TS SP, CSIRO: tested 2001-2002 Phase 1 CENAM: produced and tested two clones of the 20 L TS and six 100 mL TSs 2003 Phase 2 SIM: CENAM, NIST, NRC/IC, INMETRO EUROMET: SP, PTB, NPL/NWML, IMGC APMP: CSIRO 2004 Phase 3 CCM.FF-K4 SIM.M.FF-K4 EUROMET.M.FF-K4 2005 APMP.M.FF-K4 Phase 4 RMO.FF-K4

  3. High repeatability Very nice finish of surface, but very sensitive to cleaning. No sealing between upper and lower part. Risk for scratches and leakage.

  4. Original schedule – changed and reduced with- drawn 8Participants for 20 l: CENAM, NIST, NRC, SP, PTB, IMGC, NMIA, INMETRO 6 Participants for 100 ml: CENAM, NRC, SP, IMGC, NMIA, INMETRO new

  5. Project status K4 mid of March 2005 • Brazil has finished the testing. • Results are expected later this week. • The standards are now at the Mexican customs in Mexico City. • Cenam is planning to perform the final measure-ment before end of March. • Roberto Arias (Cenam) will present the first version of draft A during WGFF meeting in Paris on April 25 th. • In general the spread between the results so far is 0,005% (maximum/minimum) for both volume standards 20 l and 100 ml.

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