Variation Limits

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Variation Limits

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When specifying some concrete tests the coefficient of variation is used to determine if the test result is within tolerance limits.The coefficient of variation limits can be specifying by selecting Tools > GDMS > Concrete > Variation Limits. The Coefficient of Variation Limits form will be displayed.

 

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The coefficient of variation limits are specified differently for each specimen type. At the top of the form the specimen type and length units can be selected. The tolerance limits are based on the number of specimens, diameter, length, and test location (laboratory of field). Tolerance limits can be added and removed for a specimen type using the buttons at the top of the form.