ISO/TR 22305:2006 PDF

Name: ISO/TR 22305:2006 — Cigarettes — Measurement of nicotine-free dry particulate matter, nicotine, water and carbon monoxide in cigarette smoke — Analysis of data from collaborative studies reporting relationships between repeatability, reproducibility and tolerances
SKU: ISO/TR 22305:2006
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Cigarettes — Measurement of nicotine-free dry particulate matter, nicotine, water and carbon monoxide in cigarette smoke — Analysis of data from collaborative studies reporting relationships between repeatability, reproducibility and tolerances

Название (английский):

ISO/TR 22305:2006

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 154
Дата публикации:: 24 мая 2006 г.
Издание:: ISO TR 22305 edition 1 version 1
ICS:: 65.160

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Описание (английский):

ISO/TR 22305 records the data and conclusions from a review of international collaborative studies to establish the tolerance for checks of the carbon monoxide yields declared by cigarette manufacturers for their products, as specified in ISO 8243.

Abstract

Похожие стандарты

Стандарты, упомянутые в описании

Overview

ISO/TR 22305:2006 is a Technical Report from ISO/TC 126 that reviews international collaborative studies on cigarette smoke analysis to inform compliance tolerances for declared carbon monoxide (CO) yields (as referenced in ISO 8243). It compiles statistical estimates of measurement repeatability (r) and reproducibility (R) for the determination of nicotine‑free dry particulate matter (NFDPM), nicotine, water and carbon monoxide in cigarette smoke, and uses these data to propose practical tolerances for regulatory checks.

Key topics

Statistical analysis of collaborative studies - aggregation and comparison of r and R values from multiple international studies (including the 2003 CORESTA study).

Models for compliance tolerances - a statistical model combining within‑ and between‑laboratory variability, rounding effects and (where data allow) product variability to estimate tolerances for declared yields.

Data sources and limitations - international collaborative studies and UK Department of Health survey data; product variability estimates are limited and treated cautiously.

Recommendations - the report recommends setting CO compliance tolerances based on the combined evidence (see Applications below).

Informative annexes - background on sampling, problems in CO determination, proposals from industry, analysis of bias, and the CORESTA study report.

Practical applications

Regulators: use ISO/TR 22305 as the evidence base when defining or reviewing compliance tolerances for CO yields on cigarette packs and when designing verification programs.

Manufacturers: benchmark laboratory performance, interpret measurement variability, and understand the statistical basis for tolerances in ISO 8243.

Testing laboratories: assess their repeatability and reproducibility against international study results and apply confidence intervals in test reporting.

Standards developers and policy makers: rely on the report’s synthesis of collaborative data when updating normative standards or guidance.

Practical takeaways:

The report supports a recommended CO compliance tolerance of 20% (over a period of time) and 25% (at one point in time) with a minimum value recommended in the report (review advised as compliance data accumulate).

r and R values reported reflect measurement variability on near‑identical test samples and must be combined with product and sampling variability for full compliance assessment.

Related standards

ISO 8243 - Sampling cigarette populations and declared yield tolerances

ISO 3308 - Routine analytical smoking machine requirements

ISO 5725‑1 / ISO 5725‑2 - Methods for evaluating repeatability and reproducibility

ISO 4387 - (related smoke constituent measurement methods)

ISO/TR 22305 is an informative companion to these standards, providing the statistical and collaborative‑study evidence needed to interpret and apply tolerances for cigarette smoke constituents.

ISO/TR 22305:2006 PDF

Abstract

Похожие стандарты

Overview

Key topics

Practical applications

Related standards

Технические детали

SIST ISO 8243:2014

Cigarettes - Sampling

SIST-TP ISO/TR 22305:2008

Cigarettes - Measurement of nicotine-free dry particulate matter, nicotine, water and carbon monoxide in ciga…

SIST ISO 3308:2014

Routine analytical cigarette-smoking machine - Definitions and standard conditions

SIST ISO 5725-1:2024

Accuracy (trueness and precision) of measurement methods and results - Part 1: General principles and definit…

SIST ISO 5725-2:2020

Accuracy (trueness and precision) of measurement methods and results - Part 2: Basic method for the determina…

SIST ISO 4387:2020

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