CEN/TR 14539:2021

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

Publication date:   Aug 16, 2021

General information

60.60 Standard published   Jun 2, 2021

CEN

CEN/TC 260 Fertilizers and liming materials

Technical Report

65.080   Fertilizers

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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.

Life cycle

PREVIOUSLY

WITHDRAWN
CR 14539:2002

NOW

PUBLISHED
CEN/TR 14539:2021
60.60 Standard published
Jun 2, 2021