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6. Application of the GUM method
GUM for Guide to the expression of the Uncertainty in Measurement.
The tables in this paragraph show the calculations performed to determine the uncertainty on the volume V 20 of a micropipette with the following characteristics:
nominal volume: 100 × 10 –9 m 3 (100 μL) ;
coefficient of expansion: 4.5 × 10 –4 °C –1 .
The certified instruments used to measure ambient parameters are shown in table
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Application of the GUM method
Application of the EURACHEM method
Events
Metrology Congress
The 17th International Metrology Congress, organized by the Collège français de métrologie, will take place in Paris from September 21 to 24, 2015.
This congress, which takes place every two years, has the following objectives:
review original calibration and measurement techniques developed or under development;
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Standards and norms
- Détermination de l'incertitude de mesure pour les mesurages volumétriques effectués au moyen de la méthode gravimétrique - ISO/TR 20461 - 11-00
- Laboratory water for analytical use – Specification and test methods. Identical to ISO 3696 - NF EN ISO 3696 - 09-95
- Oil measurement system – Calibration – Temperature correction for use with volumetric reference measuring systems. Identical to ISO 8222 - NF EN ISO 8222...
Directory
Pipette manufacturers (non-exhaustive list)
Contact details in brackets are those of the French representative.
Eppendorf http://www.eppendorf.com/fr/france/about.html
Biohit (Sartorius) http://www.biohit.com
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