Fertilizers, soil conditioners and beneficial substances - Classification
This document establishes a system of classification for fertilizers, soil conditioners and beneficial substances. The system of classification is in accordance with:
—   the nutrient contents of the fertilizer;
—   the effect of the fertilizer;
—   the type of product; and
—   the acidity and alkalinity of the product as a supplement.
It is applicable to fertilizers, soil conditioners and beneficial substances. The classification scheme for fertilizers, soil conditioners and beneficial substances (in accordance with nutrient contents) is shown in Annex A.
| SDO | ISO: International Organization for Standardization |
| Document Number | ISO 7851 |
| Publication Date | April 1, 2022 |
| Language | en - English |
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| Supercedes | |
| Committee | ISO/TC 134 |
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