ISO 10390:2021

Soil, treated biowaste and sludge – Determination of pH

This document specifies an instrumental method for the routine determination of pH within the range pH?2 to pH?12 using a glass electrode in a 1:5 (volume fraction) suspension of soil, sludge and treated biowaste in either water (pH?in H2O), in 1?mol/l potassium chloride solution (pH?in?KCl) or in 0,01?mol/l calcium chloride solution (pH?in CaCl2).

This document is applicable to all types of air-dried soil and treated biowaste samples.

NOTE?????? For example, pretreated in accordance with ISO?11464 or EN?16179 or EN?15002.

Edition	2021
Published Date	2021
Published By	International Standardization Organisation
Page Count	8