ISO 10362-2:2013 PDF

Name: ISO 10362-2:2013 — Cigarettes — Determination of water in smoke condensates — Part 2: Karl Fischer method
SKU: ISO 10362-2:2013
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Cigarettes — Determination of water in smoke condensates — Part 2: Karl Fischer method

Название (английский):

ISO 10362-2:2013

Cigarettes — Determination of water in smoke condensates — Part 2: Karl Fischer method

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 12
Дата публикации:: 19 сентября 2013 г.
Издание:: ISO IS 10362 edition 2 version 1
ICS:: 65.160

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Описание (английский):

ISO 10362-2:2013 specifies the use of the Karl Fischer method for the determination of water in cigarette smoke condensates. The smoking of cigarettes and collection of mainstream smoke are normally carried out in accordance with ISO 4387. However, the method is also applicable to the determination of water in smoke condensates obtained by non-standard smoking.

Abstract

Похожие стандарты

Стандарты, упомянутые в описании

Overview

ISO 10362-2:2013 specifies the Karl Fischer method for the determination of water in cigarette smoke condensates. It covers sample preparation (usually following ISO 4387 mainstream smoke collection or adapted non‑standard smoking), dissolution of condensate in solvent, and direct titration of an aliquot with Karl Fischer reagent. The standard defines reagents, apparatus, standardization and titration procedures, result expression and reporting requirements for laboratory and regulatory use.

Key topics and technical requirements

Principle: dissolve smoke condensate in anhydrous solvent (propan-2-ol) and determine water content by Karl Fischer titration.

Scope: applies to smoke condensates from ISO 4387 machine smoking and to condensates from non‑standard smoking with appropriate notes in reports.

Reagents:

Propan-2-ol (extraction solvent) - account for its blank water content.
Karl Fischer reagent (single or two-part formulations); pyridine‑free reagents preferred.
Methanol (analytical grade) and freshly activated silica gel.

Apparatus:

Automatic or semi‑automatic Karl Fischer titrator.
Solvent dispenser with silica gel moisture trap and continuous stirring.
Syringes (20 µl and 10 ml), hot‑air oven, horizontal flask shaker.

Procedure highlights:

Glassware dried at (105 ± 5) °C and handled to avoid atmospheric moisture contamination.
Extract filter disc(s) in propan-2-ol (typically 25 ml for 44 mm traps, 50 ml for 92 mm traps) and shake to produce condensate solution.
Standardize Karl Fischer reagent daily using a 20 µl water injection to determine reagent water equivalent.
Titrate 10 ml aliquots of blank and sample extracts; calculate water content per cigarette using the measured reagent equivalent and volumes.

Quality and safety:

Perform blanks (at least 2 per 100 cigarettes) and report atmospheric/test conditions.
Note caution on waste handling and pyridine‑containing reagents.

Applications and who uses it

Laboratories in the tobacco industry for product characterization and quality control.

Regulatory bodies and testing laboratories that monitor cigarette smoke constituents.

Analytical chemists performing smoke condensate analysis when gas‑chromatographic methods (ISO 10362‑1) are impractical.

Useful for comparative product testing, formulation control and method verification when Karl Fischer titration is the selected water‑determination technique.

Related standards

ISO 10362-1 - Gas‑chromatographic method for water in smoke condensate.

ISO 4387 - Mainstream smoke collection and determination of total particulate matter.

ISO 3308 - Routine analytical cigarette‑smoking machine conditions.

ISO 3696 - Water for analytical laboratory use.

Keywords: ISO 10362-2:2013, Karl Fischer method, water determination, cigarette smoke condensate, smoke condensate analysis, ISO standards, ISO 4387, tobacco laboratory testing.

ISO 10362-2:2013 PDF

Abstract

Похожие стандарты

Overview

Key topics and technical requirements

Applications and who uses it

Related standards

Технические детали

SIST ISO 4387:2020

Cigarettes - Determination of total and nicotine-free dry particulate matter using a routine analytical smoki…

SIST ISO 10362-1:2020

Cigarettes - Determination of water in total particulate matter from the mainstream smoke

SIST ISO 3308:2014

Routine analytical cigarette-smoking machine - Definitions and standard conditions

SIST EN ISO 3696:1998

Water for analytical laboratory use - Specification and test methods (ISO 3696:1987)