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ISO/FDIS 21870

Rubber compounding ingredients — Carbon black — Determination of high-temperature loss on heating by thermogravimetry ISO/FDIS 21870

General information

50.00   Final text received or FDIS registered for formal approval   Jul 22, 2026

ISO

ISO/TC 45/SC 3 Raw materials (including latex) for use in the rubber industry

International Standard

83.040.20   Rubber compounding ingredients

Scope

ISO 21870:2005 describes a method for quantitative determination of the loss on heating (pyrolysis) of carbon black due to the elimination of volatile materials other than those liberated when heating to 125 °C (ISO 1126). The method is applicable to carbon black for the rubber industry.
It serves to assess the decomposition of functional groups and adsorbed substances (e.g. hydrocarbons) present on the surface of the carbon black.

Life cycle

PREVIOUSLY

PUBLISHED
ISO 21870:2005

NOW

IN_DEVELOPMENT
ISO/FDIS 21870
50.00 Final text received or FDIS registered for formal approval
Jul 22, 2026




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