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Calibration services
Mass
 
Parameter
Verification levels
 
Echelon I
 
 
ASTM Class 0, 1
OIML Class E2
30 kg to 1 mg
Echelon II
ASTM Class 2, 3
OIML Class F1, F2
30 kg to 1 mg
Echelon III
ASTM Class 4, 5, 6, 7
OIML Class M1, M2, M3
NIST Class F, legal/regulatory enforcement
2000 kg to 1 mg
 
Uncertainties of the calibrations are evaluated according to the applicable tolerance class and specification in order to ensure that the required uncertainty ratios are maintained.

Volume
Parameter
Verification levels
Gravimetric
glass standards and metal provers
20L to 1 ml
Volume transfer
glass standards and metal provers
4000L to 100ml

 
 
 
Uncertainties of the calibrations are evaluated according to the applicable tolerance class and specification in order to ensure that the required uncertainty ratios are maintained.

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