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About This Item

 

Full Description

This document specifies volumetric methods for the determination of total humic acids and free humic acid of brown coals and lignites.

 

Document History

  1. ISO 5073:2021

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    Brown coals and lignites - Determination of humic acids

    • Most Recent
  2. ISO 5073:2013


    Brown coals and lignites - Determination of humic acids

    • Historical Version
  3. ISO 5073:1999


    Brown coals and lignites -- Determination of humic acids

    • Historical Version