ISO 5313:2026

International
Standard
ISO 5313
Second edition
High nitrogen content, straight
2026-01
ammonium nitrate fertilizers —
Determination of oil retention
Engrais simples à base de nitrate d'ammonium et à forte teneur
en azote — Détermination de la rétention d'huile
Reference number
© ISO 2026
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Published in Switzerland
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Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definition . 1
4 Principle . 1
5 Reagent . 1
6 Apparatus . 2
7 Preparation of test sample . 2
8 Procedure . 2
9 Expression of results . 3
9.1 Method of calculation .3
9.2 Repeatability .3
9.3 Reproducibility .3
10 Test report . 3

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Foreword
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This document was prepared by Technical Committee ISO/TC 134, Fertilizers,
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