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7
The metrology features of the balance and any possible available adjusting weight must be
checked at regular intervals within the scope of quality assurance. For this purpose, the
answerable user must define a suitable interval as well as the nature and scope of this check.
Information is available on KERNs home page (
www.kern-sohn.com
) with regard to the
monitoring of balance test substances and the test weights required for this. Test weights and
balances can be adjusted quickly and at a reasonable price in KERNs accredited DKD
calibration laboratory (return to national normal).
General:
According to the EU guideline 90/384/EEC balances must be verified officially if they are to be used
as follows (legally regulated area):
a)
For commercial transactions if the price of goods is determined by weighing
b)
For the production of medines in pharmacies as well as for analyses in the medical
and pharmaceutical laboratory
c)
For official purposes
d)
For the production of finished packages
In case of doubt, please contact your local office of weights and measures.
Verification information
An EU qualification approval is available for those balances marked as appropriate for verification in
the technical data. In the event that the balance is applied in an area subject to verification as described
above, it must be officially verified and re-verified at regular intervals.
Re-verification of a balance is carried out in compliance with the respective legal provisions of the
states. The term of verification validity for balances in Germany, for example, is normally 2 years.
The legal provisions of the country of use are to be observed.
1.6
Monitori
ng
the
test
substances
1.6
Monitori
ng
the
test
substances
1.6
Monitori
ng
t h
e
test
substances
1.7
Verification
1.6
Monitoring the test substances
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