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sklademVydáno: 2021-07-01
UNE CEN/TR 14539:2021
Straight ammonium nitrate fertilizers - Comparative study on the determination of porosity (oil retention) (Endorsed by Asociación Española de Normalización in July of 2021.)
Fertilizantes simples a base de nitrato amónico. Estudio comparativo sobre la determinación de porosidad (retención de aceite). (Ratificada por la Asociación Española de Normalización en julio de 2021.)
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| Označení normy: | UNE CEN/TR 14539:2021 |
| Počet stran: | 20 |
| Vydáno: | 2021-07-01 |
| Status: | Norma |
Popis
UNE CEN/TR 14539:2021
This document gives the results of inter-laboratory testing to compare the accuracy and convenience of the official EC method for porosity measurement (given as Annex B) with two non-standardized alternative methods (given as 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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