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ISO 1061:1990

Current
Current

The latest, up-to-date edition.

Plastics Unplasticized cellulose acetate Determination of free acidity
Available format(s)

Hardcopy , PDF , PDF 3 Users , PDF 5 Users , PDF 9 Users

Language(s)

English, French

Published date

08-11-1990

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
Pages
2
PublisherName
International Organization for Standardization
Status
Current
Supersedes

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 Plastics Unplasticized cellulose acetate Determination of moisture content

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