Test Weights

5 Star Google Business Review Rating

Test weights can be used for daily calibration checks and adjustment of your scales and balances. Our test weights are available in brass, stainless steel and cast steel.

Historically, weights have always been used to carry out weighing procedures. This original purpose has almost disappeared along with traditional 2 pan balances. Today, weights are used almost exclusively for adjusting and
testing, i.e. the calibration of electronic balances. We therefore call them “Test Weights” as this is their purpose of use.

GNW also provide test-weight calibration services.

Adjustment or calibration?
Adjusting a balance means that you are intervening in the weighing system, to make sure that the display is set to show the correct nominal value. With calibration on the other hand, there is no intervention, you are testing whether the display is correct and documenting any deviation.

Testing, the right way!
The internationally valid OIML norm R111:2004 classifies test weights hierarchically in accuracy classes, where E1 is the most accurate and M3 is the least accurate weight class.

With GNW you get the whole test weight range in all OIML accuracy classes E1, E2, F1, F2, M1, M2, M3, all available with calibration certificates.

Learn more about test weights and their benefits here.