ISO 17531:2002 PDF

Name: ISO 17531:2002 — Photography — Processing chemicals — Specifications for 4-(N-ethyl-N-2-methanesulfonylaminoethyl)-2-methylphenylenediamine sesquisulfate monohydrate
SKU: ISO 17531:2002
Price: 120.1 EUR
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Photography — Processing chemicals — Specifications for 4-(N-ethyl-N-2-methanesulfonylaminoethyl)-2-methylphenylenediamine sesquisulfate monohydrate

Название (английский):

ISO 17531:2002

Photography — Processing chemicals — Specifications for 4-(N-ethyl-N-2-methanesulfonylaminoethyl)-2-methylphenylenediamine sesquisulfate monohydrate

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 9
Дата публикации:: 20 июня 2002 г.
Издание:: ISO IS 17531 edition 1 version 1
ICS:: 37.040.30

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Описание (английский):

This International Standard establishes criteria for the purity of photographic-grade 4-(N-ethyl-N-2-methanesulfonyl-aminoethyl)-2-methylphenylenediamine sesquisulfate monohydrate and specifies the test methods to be used to determine the purity.

Abstract

Похожие стандарты

Стандарты, упомянутые в описании

Overview

ISO 17531:2002 specifies purity criteria and test methods for the photographic chemical 4-(N-ethyl-N-2-methanesulfonylaminoethyl)-2-methylphenylenediamine sesquisulfate monohydrate (commonly used as a color developer ingredient). The standard defines required assay limits, identity checks, impurity limits and practical laboratory test procedures to ensure material quality for photographic processing applications.

Keywords: ISO 17531:2002, photographic chemicals, sesquisulfate monohydrate, purity specification, assay, quality control.

Key topics and technical requirements

Scope: Establishes purity criteria for photographic-grade material and specifies test methods to determine purity.

Physical properties: Appears as white to medium-tan or light-pink granules or powder; relative molecular mass 436.52.

Hazard & storage: May cause skin irritation/allergic reactions and is corrosive. Handle with care, avoid dust contact, store in tightly sealed containers protected from light at room temperature.

Mandatory analytical limits (summary):

Assay: 99.0 % to 102.9 % (by mass)
Residue after ignition: ≤ 0.10 %
Heavy metals (as Pb): ≤ 0.002 %
Iron (Fe): ≤ 0.002 %
Volatile matter: ≤ 0.60 %
Appearance of solution: Clear and colourless or pale pink, free from insoluble matter
Photographic-use test: Must pass defined photographic performance test

Principal test methods:

Assay: Potentiometric titration using standard ammonium cerium(IV) hexanitrate (c = 0.0500 mol/L) with ferroin indicator (instructions and formulae provided for result calculation).
Identity: Infrared (IR) spectrum comparison against reference spectrum.
Additional tests for residue after ignition, heavy metals, iron and volatile matter referencing ISO 10349 series methods.

Applications and users

Who uses it: Chemical manufacturers, photographic chemical suppliers, quality control laboratories, photographic film and print processing facilities, and standards bodies.

Practical value:

Ensures consistent performance of color developer formulations.
Prevents photographic defects caused by impurities (staining, fogging, inconsistent color reproduction).
Provides validated, harmonized test methods for acceptance testing and supplier qualification.

Related standards

ISO 10349-1 (General test methods for photographic-grade chemicals)

ISO 10349-4 (Residue after ignition)

ISO 10349-5 (Heavy metals and iron determination)

ISO 10349-8 (Volatile matter)

ISO 565 (Test sieves)

Note: ISO 17531:2002 focuses on laboratory test procedures and acceptance limits; safe laboratory practice and appropriate personal protective equipment are recommended when performing the tests.

ISO 17531:2002 PDF

Abstract

Похожие стандарты

Overview

Key topics and technical requirements

Applications and users

Related standards

Технические детали

ISO 10349-1:1992

Photography — Photographic-grade chemicals — Test methods — Part 1: General

ISO 10349-4:1992

Photography — Photographic-grade chemicals — Test methods — Part 4: Determination of residue after ignition

ISO 10349-5:1992

Photography — Photographic-grade chemicals — Test methods — Part 5: Determination of heavy metals and iron co…

ISO 10349-8:1992

Photography — Photographic-grade chemicals — Test methods — Part 8: Determination of volatile matter

ISO 5658-2:2006/Amd 1:2011

Reaction to fire tests — Spread of flame — Part 2: Lateral spread on building and transport products in verti…