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CEN/TR 14539:2021

Straight ammonium nitrate fertilizers - Comparative study on the determination of porosity (oil retention)

General information
Valid from 15.06.2021
Base Documents
CEN/TR 14539:2021
Directives or regulations
None
Standard history
Status
Date
Type
Name
15.06.2021
Main
04.11.2005
Main
This document gives the results of inter-laboratory testing to compare the accuracy and convenience of the official EC method for porosity measurement (given in Annex B) with two non-standardized alternative methods (given in Annexes C and D) already used in some participating laboratories. Three products, with a porosity between 1 % and 7 %, have been used in the inter-laboratory trials.
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Standard monitoring