Are Coefficient of Variation (CV) and Relative Error (RE) values provided with the variable pipets?

Document ID

Document ID TE7754

Version

Version 5.0

Status

Status Published

Published Date

Published Date 04/16/2019
Question
Are Coefficient of Variation (CV) and Relative Error (RE) values provided with the variable pipets?
Summary
CV and RE values for the variable pipets
Answer
The Coefficient of Variation (CV) and Relative Error (RE) values are not provided with any of the variable pipets Hach sells, including the Pipette, Variable Volume, 1.0-5.0 mL (Product # BBP065), the Pipette, Variable Volume, 0.2-1.0 mL (Product # BBP078), the Tensette® Pipet, 0.1-1.0 mL (Product # 1970001), and Tensette® Pipet, 1.0-10.0 mL (Product # 1970010).

These pipettes are not tested against ISO 8655 so there is not a refined RE and CV value available. Hach can only provide our internal pass/fail criteria. For more information on how the pipets are checked for accuracy, please reference How are the Tensette® Pipets and the BBP Variable Pipets calibrations checked after assembly?

 

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