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EUROMET Project 692

EUROMET Project 692. Volume calibration of a 100 ml Gay-Lussac Pycnometer. Portuguese Institute for uality. Run in parallel and in close co-operation. EUROMET Project 691. Calibration Inter-comparison of a 5-litre volume glass standard. SP - Swedish Testing and Research Institute.

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EUROMET Project 692

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  1. EUROMET Project 692 Volume calibration of a 100 ml Gay-Lussac Pycnometer Portuguese Institute for uality EUROMET Flow Meeting 2003

  2. Run in parallel and in close co-operation EUROMET Project 691 Calibration Inter-comparison of a 5-litre volume glass standard SP - Swedish Testing and Research Institute EUROMET Flow Meeting 2003

  3. EUROMET Project 691 and 692 Projects purpose • Compare experimental methods • Compare uncertainties calculation in the calibration of the pycnometer and flask • Will be representative for all type of laboratory glassware EUROMET Flow Meeting 2003

  4. EUROMET Project 691 and 692 Projects Details The instruments 100 ml Pycnometer 5 litre Flask EUROMET Flow Meeting 2003

  5. EUROMET Project 691 and 692 Projects Details The instruments • Easy handling • Easy to see air bubbles • Easy to clean • The volume can not be changed without breaking it EUROMET Flow Meeting 2003

  6. EUROMET Project 691 and 692 The suggest method • Gravimetry • Volume calculation formula for a temperature of 20ºC: • Perform 10 measurements EUROMET Flow Meeting 2003

  7. EUROMET Project 691 and 692 Results and uncertainty • A spreadsheet will be supplied • The uncertainty budget according to GUM • Discussion of results and uncertainty components EUROMET Flow Meeting 2003

  8. EUROMET Project 691 and 692 Preliminary results for the Pycnometer +/-0,01% Mean EUROMET Flow Meeting 2003

  9. EUROMET Project 691 and 692 Time Table EUROMET Flow Meeting 2003

  10. EUROMET Project 691 and 692 Transportation • The transportation of the instruments are done simultaneously • The carnet is paid by the pilot lab • Each laboratory are requested to take care of the transportation to the next one EUROMET Flow Meeting 2003

  11. EUROMET Project 691 and 692 Problems EUROMET Flow Meeting 2003

  12. EUROMET Project 691 and 692 Resolution • A new pycnometer was sent as soon as the damage occurred • Find and Correct the difference found due to the damage, if needed, at the end of the measurements EUROMET Flow Meeting 2003

  13. EUROMET Project 691 and 692 EUROMET Flow Meeting 2003

  14. EUROMET Project 691 and 692 EUROMET Flow Meeting 2003

  15. The coming key comparison • At least 2 volume standards. • In discussion a 100 ml pycnometer. • Tested a 20-l vessel for delivered volume in the state of cloning organised by CENAM in Mexico. EUROMET Flow Meeting 2003

  16. Key Comparison Project EUROMET Flow Meeting 2003

  17. Key Comparison Project EUROMET Flow Meeting 2003

  18. Key Comparison Project 20-l volume standard  0,0057 % EUROMET Flow Meeting 2003

  19. Key Comparison Project EUROMET Flow Meeting 2003

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