ISO 1597-1975 rus PDF

Full title and description

St ISO 1597-1975 — Plastics — Unplasticized cellulose acetate — Determination of acetic acid yield. Russian-language reproductions/translations of the original ISO text are commercially available; the original International Standard was published by ISO in 1975 and specifies a titrimetric method for determining the acetic acid yield from unplasticized cellulose acetate.

Abstract

This standard describes a chemical (titrimetric) procedure to determine the amount of acetic acid produced or present in unplasticized cellulose acetate samples. It covers required reagents, sample treatment, titration steps and calculation of acetic acid yield for quality-control and analytical purposes.

General information

• Status: Withdrawn (replaced by a later edition/revision).
• Publication date: 1975 (Edition 1, published June 1975 / circa 31 May 1975 as recorded in bibliographic records).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 83.080.20 (Thermoplastic materials / plastics).
• Edition / version: Edition 1 (1975).
• Number of pages: 3 pages (short method specification).

Scope

The document specifies an analytical method for determining the yield of acetic acid from samples of unplasticized cellulose acetate by titration (volumetric neutralization). It is intended for routine laboratory determination related to product quality and characterization of cellulose acetate materials. The method as published is concise and focused on the titrimetric determination procedure.

Key topics and requirements

• Definition of the test objective: determination of acetic acid yield in unplasticized cellulose acetate.
• Required reagents and their concentrations for hydrolysis and titration.
• Sample preparation and treatment prior to titration (hydrolysis / liberation of acetic acid from the polymer matrix).
• Titration procedure (indicator or potentiometric end-point), calculation of acetic acid yield from titration data.
• Reporting format and expression of results (yield expressed as mass or percentage, conditions specified).
• Short method length — intended as a standardized, reproducible routine test rather than an extensive specification of interlaboratory precision.

Typical use and users

Analytical and quality-control laboratories in polymer and plastics manufacturing, material inspection bodies, research laboratories studying cellulose acetate materials, and suppliers/buyers performing acceptance tests. The method is used where a quick, standardized titrimetric determination of acetic acid content is required for evaluating resin stability or compliance with product specifications.

Related standards

This ISO standard was technically identical to an earlier ISO Recommendation R 1597 and was later revised (superseded) by ISO 1597:1994. Other national and regional methods for acetic-acid determination in acetate materials or fibres (for example DIN and national test methods) cover similar analytical objectives and may be used as equivalents in different jurisdictions.

Keywords

ISO 1597, cellulose acetate, unplasticized acetate, acetic acid yield, titration, volumetric analysis, plastics testing, polymer quality control.

FAQ

Q: What is this standard?

A: ISO 1597:1975 is an International Standard that specifies a titrimetric method for determining the yield of acetic acid from unplasticized cellulose acetate.

Q: What does it cover?

A: It covers the reagents, sample treatment, titration procedure and calculations needed to quantify acetic acid released from cellulose acetate samples, expressed as acetic acid yield.

Q: Who typically uses it?

A: Polymer and plastics QC/analytical laboratories, manufacturers of cellulose acetate products, inspection and testing bodies, and research groups working with cellulosic acetate materials.

Q: Is it current or superseded?

A: The 1975 edition is withdrawn and later revised — ISO 1597 was updated (ISO 1597:1994). The 1975 text is therefore superseded; users should consult the later revision or current equivalent methods for up-to-date requirements.

Q: Is it part of a series?

A: It was derived by transformation of an earlier ISO Recommendation (R 1597) and later became part of the ISO series of plastics test methods for cellulose-acetate materials; it is related to other ISO/DIN methods for acetate and fibre analysis.

Q: What are the key keywords?

A: Cellulose acetate, unplasticized acetate, acetic acid yield, titration, volumetric analysis, plastics testing, ISO 1597.