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ISO 18852:2005

Rubber compounding ingredients — Determination of multipoint nitrogen surface area (NSA) and statistical thickness surface area (STSA)

95.99 Withdrawal of Standard   Mar 30, 2012

General information

95.99     Mar 30, 2012

ISO

ISO/TC 45/SC 3

International Standard

83.040.20  

Scope

ISO 18852:2005 specifies a method for the determination of the nitrogen surface area (NSA) of carbon blacks and other rubber compounding ingredients, like silicas and zinc oxides, based on the Brunauer, Emmett and Teller (BET) theory of gas adsorption using a multipoint determination. This test method specifies the sample preparation and treatment, instrument calibration, required accuracy and precision of the experimental data, and calculation of the surface area results from the data obtained. Also given is a procedure for calculating the statistical thickness surface area (STSA), otherwise known as the external surface area.
The test method specified uses an automatic volumetric static-vacuum apparatus, the surface area being calculated using the BET theory based on monolayer measurements.

Life cycle

NOW

WITHDRAWN
ISO 18852:2005
95.99 Withdrawal of Standard
Mar 30, 2012

CORRIGENDA / AMENDMENTS

Amended by
ISO 18852:2005/CD Amd 1

Amended by
ISO 18852:2005/DAmd 1

REVISED BY

WITHDRAWN
ISO 18852:2012

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