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ISO/FDIS 21870

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

General information

50.20     Oct 27, 2026

ISO

ISO/TC 45/SC 3

International Standard

83.040.20  

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

PROJECT
ISO/FDIS 21870
50.20 Proof sent to secretariat or FDIS ballot initiated: 8 weeks
Oct 27, 2026

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