| Calibration services |
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| Mass |
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Parameter
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Verification levels
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Echelon I
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ASTM Class 0, 1
OIML Class E2
30 kg Ð 1 mg
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Echelon II
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ASTM Class 2, 3
OIML Class F1, F2
30 kg Ð 1 mg
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Echelon III
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ASTM Class 4, 5, 6, 7
OIML Class M1, M2, M3
NIST Class F, legal/regulatory enforcement
2000 kg Ð 1 mg
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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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| Length |
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Parameter
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Verification levels
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Steel tapes
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up to 25 meters (100 ft)
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Ridged rules
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up to 45 cm (18 in)
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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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| Volume |
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Parameter
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Verification levels
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Gravimetric
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glass standards and metal provers
20L to 1 ml
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Volume transfer
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glass standards and metal provers
4000L to 100ml
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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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| More information on metrology |
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