UNE-EN ISO 3681:2020
Current
The latest, up-to-date edition.
Binders for paints and varnishes - Determination of saponification value - Titrimetric method (ISO 3681:2018)
Hardcopy , PDF
Spanish, Castilian, English
22-04-2020
This document specifies a titrimetric method for determining the esterified-acid content in binders for paints and varnishes, free acids and acid anhydrides being necessarily included in the result obtained.Because different binders vary in their resistance to saponification, this International Standard is of limited applicability. If necessary, completeness of saponification may be checked by repeating the test under more severe conditions achieved by the use of longer saponification time, more concentrated potassium hydroxide solution, or a higher-boiling alcohol as solvent.Annex A specifies a procedure suitable for binders that saponify with difficulty.The method is not applicable to those materials that show further reaction with alkalis beyond normal saponification.
| Committee |
CTN 48
|
| DocumentType |
Standard
|
| Pages |
14
|
| PublisherName |
Asociación Española de Normalización
|
| Status |
Current
|
| Standards | Relationship |
| ISO 3681:2018 | Identical |
| EN ISO 3681:2018 | Identical |
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