Draft Details

Review start date:Aug 2, 2019
Review end date:Oct 2, 2019
Contact email:sue.ruscetta(at)csagroup.org
Draft Scope/Description:


This Standard describes the thermal analysis of kraft lignin using thermogravimetric methods.

Thermogravimetry can be used to determine the initial decomposition temperature(s), rate(s) of decomposition and the temperature at maximum decomposition of various materials including lignins at atmospheric pressure. All these temperatures are solely based on the mass loss and are not necessarily the real values because not all decompositions can generate evaporation at atmospheric pressure. Thus, these values are only for comparison purpose.

This procedure is applicable to solid (e.g. powdered form) lignins isolated from the kraft pulping process. It does not apply to raw black liquor.

Thermogravimetric measurement may be performed under different types of atmosphere, e.g. an inert atmosphere or an oxidative atmosphere.

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