ISO 893:1989 PDF

Name: ISO 893:1989 — Surface active agents — Technical alkane sulfonates — Methods of analysis
SKU: ISO 893:1989
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Surface active agents — Technical alkane sulfonates — Methods of analysis

Название (английский):

ISO 893:1989

Surface active agents — Technical alkane sulfonates — Methods of analysis

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 9
Дата публикации:: 26 октября 1989 г.
Издание:: ISO IS 893 edition 2 version 1
ICS:: 71.100.40

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Описание (английский):

Specifies the following methods of analysis for the substance to be tested: measurement of pH, determination of water content, determination of free alkalinity or free acidity, determination of matter extractable by light petroleum, determination of sodium alkane sulphonates content, determination of alkane monosulphonates content, determination of sodium sulphite content, determination of sodium sulphate content, determination of sodium chloride content. In annexes a general scheme of analysis and a method for the determination of total salts content is given.

Abstract

Похожие стандарты

Стандарты, упомянутые в описании

Overview

ISO 893:1989 specifies standardized methods of analysis for technical alkane sulfonates, a class of surface active agents (surfactants). It applies to technical alkane sulfonates in powder, paste or liquid form and covers routine determinations used for quality control, specification and product release. The standard also includes informative annexes: a general scheme of analysis (Annex A) and a method for determination of total salts content (Annex B).

Key topics and requirements

The standard defines analytical procedures and reporting requirements for critical parameters of alkane sulfonates, including:

pH measurement (on a 5% solution) - reference procedure: ISO 4316.

Water content - Karl Fischer method for products <10% water (ISO 4317) and azeotropic distillation for products >5% water (ISO 4318).

Free alkalinity / free acidity - titrimetric methods (ISO 4314).

Matter extractable by light petroleum - extraction procedure referenced to ISO 1104.

Total alkane sulfonate content - method by ISO 6122; Annex B provides a cross-check via total salts.

Alkane monosulfonate content - ISO 6121 or ISO 6845 (direct two‑phase titration or alternate methods).

Sodium sulfite, sulfate and chloride content - sulfite by ISO 1104 procedures, sulfate by ISO 6844, chloride by ISO 894.

Sample preparation and dilution - prepare a laboratory sample (~300 g) and dilute so the technical alkane sulfonate content is about 20–30% (m/m); conversion of results back to raw-material basis is by the dilution factor.

Test report requirements - identification of sample, reference to ISO 893:1989, methods used, results with units and any deviations or operational details.

Practical applications and users

ISO 893:1989 is intended for:

Quality control laboratories in surfactant and detergent manufacturing.

Raw-material suppliers and formulation chemists verifying alkane sulfonate content and impurities.

Regulatory and compliance testing where standardized, reproducible analytical methods are required.

R&D teams assessing product consistency, water content and salt balance in technical alkane sulfonates.

Using these harmonized methods helps ensure comparability between laboratories, accurate specification of sodium alkane sulphonates, and reliable detection of impurities (sulfite, sulfate, chloride) that affect performance and stability.

ISO 893:1989 PDF

Abstract

Похожие стандарты

Overview

Key topics and requirements

Practical applications and users

Related standards

Технические детали

26/30513410 DC

BS ISO 4316 Surface active agents — Determination of pH of aqueous solutions — Potentiometric method

ISO 4317:1991

Surface-active agents and detergents — Determination of water content — Karl Fischer method

ISO 4318:1978

Surface active agents and soaps — Determination of water content — Azeotropic distillation method

ISO 4314:1977

Surface active agents — Determination of free alkalinity or free acidity — Titrimetric method

BS ISO 11040-6:2019

Prefilled syringes. Plastic barrels for injectables and sterilized subassembled syringes ready for filling.

SIST ISO 612:2000

Road vehicles -- Dimensions of motor vehicles and towed vehicles -- Terms and definitions

ISO 6121:1979

Surface active agents — Technical alkyl- sulphonates — Determination of alkylmonosulphonates content (direct…

SIST EN ISO 6845:2003

Surface active agents - Technical alkane sulfonates - Determination of the mean relative molecular mass of th…