NF ISO 4652

NF ISO 4652

October 2020
Standard Current

Rubber compounding ingredients - Carbon black - Determination of specific surface area by nitrogen adsorption methods - Single-point procedures

This document specifies two methods for the determination of the specific surface area of types and grades of carbon black for use in the rubber industry:— method A: automatic gas chromatography method (carrier gas method);— method B: automatic volumetric method.Somewhat different results might be obtained from the two methods. The degassing procedure differs between method A and method B, and it is important to investigate the possibility of correcting the results by using standard reference blacks.The results might also differ from those obtained using the multipoint method specified in ISO 18852, which is the preferred method.These methods are not applicable to porous carbon blacks.

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Main informations

Collections

National standards and national normative documents

Publication date

October 2020

Number of pages

21 p.

Reference

NF ISO 4652

ICS Codes

83.040.20   Rubber compounding ingredients

Classification index

T45-105

Print number

1

International kinship

ISO 4652:2020
Sumary
Rubber compounding ingredients - Carbon black - Determination of specific surface area by nitrogen adsorption methods - Single-point procedures

This document specifies two methods for the determination of the specific surface area of types and grades of carbon black for use in the rubber industry:

— method A: automatic gas chromatography method (carrier gas method);

— method B: automatic volumetric method.

Somewhat different results might be obtained from the two methods. The degassing procedure differs between method A and method B, and it is important to investigate the possibility of correcting the results by using standard reference blacks.

The results might also differ from those obtained using the multipoint method specified in ISO 18852, which is the preferred method.

These methods are not applicable to porous carbon blacks.

Table of contents
  • 1 Domaine d'application
  • 2 Références normatives
  • 3 Termes et définitions
  • 4 Méthode A: Méthode automatique par chromatographie en phase gazeuse (méthode du gaz vecteur)
  • 5 Méthode B: Méthode volumétrique automatique
  • 6 Fidélité
  • Annexe A Correction par la surface par adsorption d'azote par méthode multipoints
  • Annexe B Fidélité
  • Bibliographie
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