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ISO 23381:2020

Determination of salt out (crystallization) temperature of liquid fertilizers

Sep 17, 2020

General information

90.93     Dec 3, 2025

ISO

ISO/TC 134

International Standard

65.080  

English   French  

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Scope

This document specifies the test procedure for the determination of the salt out temperature (SOT), also known as the crystallization temperature (CT) of liquid (fluid) fertilizers, using an inexpensive and simple technique.
This method might not be applicable to the binary and ternary fertilizers, especially with regards to the last crystal to disappear (LCTD). Some of these exceptions are discussed in the procedure (Clause 8).

Life cycle

NOW

PUBLISHED
ISO 23381:2020
90.93 Standard confirmed
Dec 3, 2025