Skip to main content

ISO 1061:1990

Current Date published:

Plastics — Unplasticized cellulose acetate — Determination of free acidity

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.

Get this standard Prices exclude GST
PDF ( Single user document)
$79.13 NZD
Networkable PDF
Price varies
Preview only close
Prev {{ page }}/ {{ numPages }} Next
Preview only close
Prev {{ page }}/ {{ numPages }} Next
Pages: 2

Keep me up-to-date

Sign up to receive updates when there are changes to this standard

Related Information

Similar Standards

  • BS 1524:1993

    Specification for cellulose acetate moulding materials

  • BS 2571:1990

    Specification for general-purpose flexible PVC compounds for moulding and extrusion

  • BS 2782-1:Method 130A:1991

    Methods of testing plastics. Thermal properties, Determination of the thermal stability of polyvinyl chloride by the Congo red method

  • BS 2782-1:Method 131B:1983

    Methods of testing plastics. Thermal properties, Determination of extensibility after heat ageing of flexible polyvinyl chloride sheet

Preview only close
Prev {{ page }}/ {{ numPages }} Next
Preview only close
Prev {{ page }}/ {{ numPages }} Next
Pages: 2

ISO 1061:1990

Get this standard Prices exclude GST
PDF ( Single user document)
$79.13 NZD
Networkable PDF
Price varies

Request to add this standard to your subscription

ISO 1061:1990

Price varies
Online library subscription

Your organisation’s Account Administrator must approve a request to add a standard to your subscription.

You may add a comment to the administrator below.

Cancel