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ISO 3681:2018

Binders for paints and varnishes — Determination of saponification value — Titrimetric method
7. 11. 2018.

Опште информације

90.93     5. 7. 2024.

ISO

ISO/TC 35

Međunarodni standard

87.060.20  

engleski   francuski  

Kupovina

Objavljen

Jezik na kome želite da primite dokument.

Apstrakt

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.

Životni ciklus

PRETHODNO

POVUČEN
ISO 3681:1996

TRENUTNO

OBJAVLJEN
ISO 3681:2018
90.93 Odluka o potvrđivanju standarda
5. 7. 2024.

Nacionalna preuzimanja

SRPS EN ISO 3681:2019  
ISS

Vezivna sredstva za boje i lakove – Određivanje saponifikacionog broja – Titrimetrijska metoda

60.60   Standard objavljen

H035 Saznaj više