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About This Item

 

Full Description

This document specifies a method for determining the pH value and the difference figure of an aqueous leather extract. It is applicable to all types of leather.

 

Document History

  1. ISO 4045:2018

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    Leather - Chemical tests - Determination of pH and difference figure

    • Most Recent
  2. ISO 4045:2008


    Leather - Chemical tests - Determination of pH

    • Historical Version
  3. ISO 4045:1977


    Leather -- Determination of pH

    • Historical Version