NEN - NPR-CEN/TR 14539
Straight ammonium nitrate fertilizers - Comparative study on the determination of porosity (oil retention)
active, Most Current
| Organization: | NEN |
| Publication Date: | 1 July 2021 |
| Status: | active |
| Page Count: | 22 |
| ICS Code (Fertilizers): | 65.080 |
scope:
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.
Document History
NPR-CEN/TR 14539
July 1, 2021
Straight ammonium nitrate fertilizers - Comparative study on the determination of porosity (oil retention)
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...