Hardness reference blocks
Data retrieval via excel file for periodical test and measurement inaccuracy
Please only enter the MPA NRW No. and the hardness value!
New programme version since 2006-05-01!
The calculation of the measurement inaccuracy was adapted to the annex of the ISO standards (publication as DIN EN ISO dated 2006-03).
The databases from 2000-01-01 till 2006-04-30 have been removed from our data bank!
Should you need a file from this period, please contact us:
Tel.: +49 (0)231 4502 -376 / -466
Fax: +49 (0)231 4502 -666
E-Mail: balaschov[at]mpanrw.de (Hr. Balaschov)
or reinstaedt[at]mpanrw.de (Hr. Reinstädt)