Weights yesterday and today

Weights have always been used to carry out weighing procedures. This
original purpose has almost disappeared. Today, weights are used almost
exclusively for adjusting and testing = calibration of electronic balances.
We therefore call them "Test weights" as this is their purpose of use.

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. For further information, see the glossary on page 151.

Testing, doing it right!

The internationally valid OIML Directive R111-2004 classifi es test
weights hierarchically into accuracy classes, where E1 is the most
accurate and M3 is the least accurate weight class. With KERN you get
the whole test weight range in all OIML accuracy classes E1, E2, F1, F2,
M1, M2, M3.
As the appropriate test weight is only classed as checking equipment to
ISO 9000ff if it has the relevant proof of accuracy, all KERN test weights
come with an appropriate DKD calibration certifi cate (optional). For
further details, see the DKD calibration service section on page 147.
KERN off ers you the appropriate test weight package for your balance,
consisting of the test weight, box and DKD calibration certifi cate, as
proof of its accuracy ... the best pre-requisite for proper balance calibration