DIN EN ISO 4629-2
Binders for paints and varnishes - Determination of hydroxyl value - Part 2: Titrimetric method using a catalyst (ISO 4629-2:2016)
| Organization: | DIN |
| Publication Date: | 1 December 2016 |
| Status: | active |
| Page Count: | 15 |
| ICS Code (Binders): | 87.060.20 |
scope:
This part of ISO 4629 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 caseto- 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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