90.20 Standard under periodical review Oct 15, 2024
ISO
ISO/TC 134 Fertilizers, soil conditioners and beneficial substances
International Standard
65.080 Fertilizers
This document specifies a method for the extraction of water soluble phosphorus.
The method is applicable to all fertilizers, including compound fertilizers, where water soluble phosphorus is to be determined.
WITHDRAWN
ISO 5316:1977
PUBLISHED
ISO 15958:2019
90.20
Standard under periodical review
Oct 15, 2024