This standard was last reviewed and confirmed in 2020.
Therefore this version remains current.
Abstract
PreviewThe free acidity determined by this method includes acidity extractable by water and acidity due to acidic groups directly attached to the cellulose acetate, e.g. carboxyl groups. This method is not suitable for cellulose acetate containing any additives which may affect the test. The principle consists in treating a test portion of cellulose acetate with water and titrating the resultant solution with sodium hydroxide solution. The free acidity is calculated as the percentage, by mass, of free acetic acid in the cellulose acetate. This second edition cancels and replaces the first edition ISO 1061:1975, of which it constitutes a minor technical revision.
-
Status: PublishedPublication date: 1990-11
-
Edition: 2Number of pages: 2
-
- ICS :
- 83.080.20 Thermoplastic materials
Buy this standard
en
| Format | Language | |
|---|---|---|
| std 1 40 | ||
| std 2 40 | Paper |
- CHF40
Life cycle
-
Previously
WithdrawnISO 1061:1975
-
Now
Got a question?
Check out our FAQs
Customer care
+41 22 749 08 88
Opening hours:
Monday to Friday - 09:00-12:00, 14:00-17:00 (UTC+1)