ISO 2114-1974 rus PDF
Name in English:
St ISO 2114-1974 rus
Name in Russian:
Ст ISO 2114-1974 rus
Original standard ISO 2114-1974 rus in PDF full version. Additional info + preview on request
Full title and description
St ISO 2114-1974 rus — International Standard ISO 2114:1974 titled "Plastics — Unsaturated polyester resins — Determination of acid value" (рус.: «Пластмассы — Ненасыщенные полиэфирные смолы — Определение кислотного числа»). This item corresponds to the original ISO 1974 edition and is commonly found in Russian-language reproductions/adoptions of the ISO text.
Abstract
Specifies a laboratory titrimetric procedure for determining the acid value (acid number) of unsaturated polyester resins. The acid value is reported as milligrams of potassium hydroxide (KOH) required to neutralize 1 gram of resin under the test conditions; the method covers sample dissolution, titration (indicator or potentiometric endpoint), calculation and expression of results. The original 1974 edition described the partial acid-value determination for unsaturated polyester resins and was later revised to include total acid-value methods in subsequent editions.
General information
- Status: Withdrawn / Cancelled (original 1974 edition withdrawn and later revised).
- Publication date: November 1974 (Edition 1, 1974-11).
- Publisher: International Organization for Standardization (ISO).
- ICS / categories: 83.080.10 (Plastics — Polyester resins and related testing).
- Edition / version: Edition 1 (1974).
- Number of pages: 2.
Key bibliographic and lifecycle details above reflect the ISO catalogue record for the 1974 edition and its later revision history.
Scope
Applies to unsaturated polyester resins and specifies a titrimetric procedure for determining the acid value (partial acid value in the original edition). The procedure is intended for routine quality control and specification testing of resin batches to quantify free carboxyl groups and hydrolysed anhydride functionalities expressed as mg KOH per gram of resin. Later editions expanded the scope to include both partial and total acid-value determinations.
Key topics and requirements
- Definition of acid value (mg KOH/g) and related terms (partial and total acid value).
- Required reagents and standardized titrant (ethanolic KOH of specified concentration).
- Apparatus and laboratory equipment (balances, burettes, titration/potentiometric setup, solvents).
- Sample preparation and dissolution in specified solvent mixtures.
- Titration procedure (indicator or potentiometric endpoint) and calculation of results.
- Reporting format, expression of results and considerations for anhydride hydrolysis.
These topics summarise the technical content and practical requirements found in the ISO 2114 series of documents for acid-value determination.
Typical use and users
Used by resin manufacturers, coatings and adhesives producers, quality control and analytical laboratories, R&D groups developing polyester systems, and materials testing services. The method supports batch release testing, specification compliance and research into resin functionality (acid/hydroxyl end-group balance).
Related standards
Subsequent and related publications in the ISO/EN family include ISO 2114:1996 and ISO 2114:2000 (EN ISO 2114:2000) which update and extend the procedures to define both partial and total acid values; related test methods for paints, varnishes and polyester binders reference the same titrimetric principles.
Keywords
ISO 2114, acid value, acid number, unsaturated polyester resin, titration, KOH, partial acid value, total acid value, resin testing, plastics testing, Ст ISO 2114-1974, рус.
FAQ
Q: What is this standard?
A: ISO 2114:1974 is the original ISO test method titled "Plastics — Unsaturated polyester resins — Determination of acid value" that defines a titrimetric procedure to measure the acid value of unsaturated polyester resins.
Q: What does it cover?
A: It covers laboratory procedure for determining the acid value (expressed in mg KOH per g of resin), including reagents, apparatus, sample preparation, titration and calculation. The 1974 edition focused on partial acid-value determination; later editions added total acid-value methods.
Q: Who typically uses it?
A: Resin producers, coatings and varnish manufacturers, QC and analytical laboratories, and research groups working with polyester resins and related binder systems.
Q: Is it current or superseded?
A: The 1974 edition has been withdrawn and superseded by later revisions (notably ISO 2114:1996 and ISO 2114:2000 / EN ISO 2114:2000). For current procedures and the broader definitions (partial and total acid value) consult the later editions.
Q: Is it part of a series?
A: Yes — it is part of the ISO standards developed by ISO/TC 61 (Plastics) and its subcommittees dealing with test methods for polyester resins and coating binders; the method sits alongside other resin and binder test standards (see later ISO 2114 editions and related EN/ISO documents).
Q: What are the key keywords?
A: Acid value; acid number; unsaturated polyester resin; titration; potassium hydroxide (KOH); partial acid value; total acid value; resin quality control.