ISO TR 9122-3-1993 PDF

Full title and description

ISO/TR 9122-3:1993 — Toxicity testing of fire effluents — Part 3: Methods for the analysis of gases and vapours in fire effluents. This technical report specifies analytical and sampling methods for measuring airborne concentrations of key toxic gases and vapours generated in fires, and includes informative annexes with separation examples and additional methods.

Abstract

Specifies methods for the individual analysis of airborne concentrations of carbon monoxide (CO), carbon dioxide (CO2), oxygen (O2), hydrogen cyanide (HCN), hydrogen chloride (HCl), hydrogen bromide (HBr), hydrogen fluoride (HF), oxides of nitrogen (NOx), and acrolein in fire effluents. Annex A gives examples of separation of permanent gases, Annex B lists other gases of interest and Annex C describes a newer method.

General information

• Status: Withdrawn.
• Publication date: May 1993 (Edition 1, published 1993-05-13).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 13.220.99 (protection against fire; related fire-testing categories).
• Edition / version: Edition 1 (1993).
• Number of pages: 34 pages (official ISO listing).

Scope

This technical report sets out sampling and analytical procedures for the individual determination of selected gaseous species in atmospheres produced by fire tests or fire effluents. It is intended for analyses of extracted samples from test rigs or model fire tests and describes methods for sampling, separation and chemical analysis of the listed gases and vapours; it does not cover aerosols or comprehensive multi-component FTIR analyses. The report has been withdrawn and its content was incorporated and updated in subsequent ISO work on sampling and analysis of fire effluents.

Key topics and requirements

• Target analytes and toxic species: CO, CO2, O2, HCN, HCl, HBr, HF, NOx and acrolein (CH2CHCHO).
• Sampling principles for extracting representative effluent samples from test apparatus and ducts.
• Analytical techniques: gas separation approaches, chemical trapping/absorption, titration-type methods and instrumental determinations described for each species.
• Calibration, quality control and recommendations for limits of detection and measurement assurance appropriate for fire-effluent testing.
• Informative annexes with examples of gas separation, lists of other gases of interest and description of newer methods applicable at the time of publication.

Typical use and users

Used historically by fire testing laboratories, toxicologists, materials and product safety engineers, fire behaviour researchers, standards committees and regulatory bodies involved in evaluating the toxic products of combustion. Typical activities include standardized fire-effluent testing of materials, method development for gas analysis in combustion atmospheres, and comparative toxicological assessment of fire effluents.

Related standards

This technical report was superseded and its content incorporated into ISO 19701 (Methods for sampling and analysis of fire effluents). ISO 19701 was published in 2005 and later revised (edition 2013). Users should refer to ISO 19701 (2005, subsequently updated to ISO 19701:2013) for the active, consolidated methods and current guidance.

Keywords

fire effluents, toxicity testing, gas analysis, sampling methods, carbon monoxide, hydrogen cyanide, hydrogen halides, oxides of nitrogen, acrolein, ISO/TC 92.

FAQ

Q: What is this standard?

A: ISO/TR 9122-3:1993 is a technical report that provided methods for sampling and analyzing specific gases and vapours in fire effluents (airborne concentrations generated by fires).

Q: What does it cover?

A: It covers procedures for sampling and the individual analysis of selected toxic gaseous species (CO, CO2, O2, HCN, HCl, HBr, HF, NOx, acrolein), plus informative annexes on gas separation and related methods. It focused on extracted gas samples from test rigs or model fire tests.

Q: Who typically uses it?

A: Fire testing laboratories, toxicologists, materials safety engineers, researchers studying combustion products, and standards or regulatory bodies concerned with fire effluent toxicity.

Q: Is it current or superseded?

A: ISO/TR 9122-3:1993 has been withdrawn. Its material was superseded by ISO 19701 (first published 2005) and later updated in ISO 19701:2013; users should consult ISO 19701 for the current, consolidated methods.

Q: Is it part of a series?

A: Yes — it formed part of the ISO 9122 technical report series on toxicity testing of fire effluents (multiple parts addressing sampling, analytical methods, prediction of toxic effects, etc.) and is linked to later consolidated work under ISO 19701.

Q: What are the key keywords?

A: fire effluents, toxicity testing, gas sampling, gas analysis, HCN, CO, HCl, NOx, acrolein, ISO 19701.