ISO 1061:1990
Current
The latest, up-to-date edition.
Plastics Unplasticized cellulose acetate Determination of free acidity
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English, French
08-11-1990
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The 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.
| DocumentType |
Standard
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| Pages |
2
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| PublisherName |
International Organization for Standardization
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| Status |
Current
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| Supersedes |
| Standards | Relationship |
| DIN EN ISO 1061:2000-02 | Identical |
| NF EN ISO 1061 : 1999 | Identical |
| NBN EN ISO 1061 : 1ED 99 | Identical |
| NEN EN ISO 1061 : 1999 | Identical |
| NEN ISO 1061 : 1992 | Identical |
| NS EN ISO 1061 : 1ED 1999 | Identical |
| I.S. EN ISO 1061:1999 | Identical |
| PN EN ISO 1061 : 2002 | Identical |
| SN EN ISO 1061 : 1999 | Identical |
| UNE-EN ISO 1061:2000 | Identical |
| UNI ISO 1061 : 1989 | Identical |
| UNI EN ISO 1061 : 2002 | Identical |
| BS 2782-4:Method 459A:1991 | Identical |
| BS EN ISO 1061:1999 | Identical |
| EN ISO 1061:1999 | Identical |
| DIN 53729:1968-11 | Similar to |
| ISO 16073:2011 | Wildland firefighting personal protective equipment Requirements and test methods |
| BS 2880:1991 | Methods of testing cellulose acetate flake |
| BS ISO 16073:2011 | Wildland firefighting personal protective equipment. Requirements and test methods |
| ISO 565:1990 | Test sieves — Metal wire cloth, perforated metal plate and electroformed sheet — Nominal sizes of openings |
| EN ISO 585:1999 | Plastics - Unplasticized cellulose acetate - Determination of moisture content (ISO 585:1990) |
| ISO 585:1990 | Plastics Unplasticized cellulose acetate Determination of moisture content |
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