NF EN ISO 4629-2

NF EN ISO 4629-2

August 2016
Standard Current

Binders for paints and varnishes - Determination of hydroxyl value - Part 2 : titrimetric method using a catalyst

ISO 4629-2:2016 specifies a titrimetric method for determining the hydroxyl value of resins, binders for paints and varnishes, primary alcohols, glycols and fats. Whether it can be applied for hydro carboxylic acids, phenolic hydroxyl groups, polyols such as trimethyl propane and substances containing aromatic groups have been activated for Friedel-Crafts acylation shall be decided on case-to-case basis.Under the right conditions, the method is also applicable for determining the hydroxyl value of castor oil and its derivatives.

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Main informations

Collections

National standards and national normative documents

Publication date

August 2016

Number of pages

14 p.

Reference

NF EN ISO 4629-2

ICS Codes

87.060.20   Binders

Classification index

T30-403-2

Print number

1

International kinship

European kinship

EN ISO 4629-2:2016
Sumary
Binders for paints and varnishes - Determination of hydroxyl value - Part 2 : titrimetric method using a catalyst

ISO 4629-2:2016 specifies a titrimetric method for determining the hydroxyl value of resins, binders for paints and varnishes, primary alcohols, glycols and fats. Whether it can be applied for hydro carboxylic acids, phenolic hydroxyl groups, polyols such as trimethyl propane and substances containing aromatic groups have been activated for Friedel-Crafts acylation shall be decided on case-to-case basis.

Under the right conditions, the method is also applicable for determining the hydroxyl value of castor oil and its derivatives.

Table of contents
  • 1 Domaine d'application
  • 2 Références normatives
  • 3 Termes et définitions
  • 4 Principe
  • 5 Réactifs
  • 6 Appareillage
  • 7 Échantillonnage
  • 8 Mode opératoire
  • 9 Expression des résultats
  • 10 Fidélité
  • 11 Rapport d'essai
  • Bibliographie
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