Deliverable
Free preview
Price
Language
ILNAS-EN ISO 3681:2018
Edition
12/2018
Binders for paints and varnishes - Determination of saponification value - Titrimetric method (ISO 3681:2018)
Binders for paints and varnishes - Determination of saponification value - Titrimetric method (ISO 3681:2018)
- € 16.5 / copy
Abstract
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 document is of limited applicability. If necessary, completeness of saponification can 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.
Status
| Standard - Active |
Origin
| Technical Committee : |
| CEN/TC 139 : Paints and varnishes |
Implementation
| start of the vote on the project | 11/01/2018 | date of ratification (dor) | 09/11/2018 | |||
| end of the vote on the project | 03/04/2018 | date of anouncement (doa) | 31/03/2019 | |||
| start of the vote on the final project | 09/08/2018 | date of publication (dop) | 30/06/2019 | |||
| end of the vote on the final project | 06/10/2018 | date of withdrawal (dow) | 30/06/2019 |
|
Publication Official Journal
of the Grand-Duchy of Luxembourg |
15/01/2019 |
| Reference | Mémorial A N° 13 |
Relations
| Relations to older standards |
| ILNAS-EN ISO 3681:1998 |
| Relations to international standards |
| ISO 3681 |
| ISO 3681:2018 |
International Classification for Standards (ICS codes) :
| 87.060.20 : Binders |
