ISO 5073:1999
Brown coals and lignites - Determination of humic acids

Standard No.

ISO 5073:1999

Release Date

1999

Published By

International Organization for Standardization (ISO)

Status

Withdraw

Replace By

ISO 5073:2013

Latest

ISO 5073:2021

Scope

This International Standard specifies volumetric methods for the determination of a) total humic acids, and b) free humic acid, of brown coals and lignites.

ISO 5073:1999 history

• 2021 ISO 5073:2021 Brown coals and lignites — Determination of humic acids
• 2013 ISO 5073:2013 Brown coals and lignites.Determination of humic acids
• 1999 ISO 5073:1999 Brown coals and lignites - Determination of humic acids
• 1985 ISO 5073:1985 Brown coals and lignites; Determination of humic acids