ISO/TR 7240-9:2022
(Main)Fire detection and alarm systems — Part 9: Test fires for fire detectors
Fire detection and alarm systems — Part 9: Test fires for fire detectors
This document provides a catalogue of test fires and is intended to enhance comprehensive understanding of fire detection test methods. It describes a series of test fires to which fire detectors, such as smoke, heat and flame detectors, are subjected, as specified in other Parts of the ISO 7240 series. This document does not specify normative requirements regarding the test methods for the test fires.
Systèmes de détection et d'alarme d'incendie — Partie 9: Essais sur foyers pour détecteurs d'incendie
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Standards Content (Sample)
TECHNICAL ISO/TR
REPORT 7240-9
First edition
2022-04
Fire detection and alarm systems —
Part 9:
Test fires for fire detectors
Systèmes de détection et d'alarme d'incendie —
Partie 9: Essais sur foyers pour détecteurs d'incendie
Reference number
© ISO 2022
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Published in Switzerland
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Contents Page
Foreword . vi
Introduction .vii
1 Scope . 1
2 Normative references . 1
3 Terms, definitions and abbreviated terms . 1
3.1 Terms and definitions . 1
3.2 Abbreviated terms . 1
4 Characteristics of test fires . 2
5 Test laboratory . 3
5.1 General . 3
5.2 Fire test room (for all detectors except aspirating smoke detectors) . 3
5.3 Fire test room and ventilation system (for aspirating smoke detectors) . 4
5.3.1 Fire test room . 5
5.3.2 Ventilation system. 6
5.4 Ambient test condition . 7
5.5 Instruments. 8
5.5.1 General . 8
5.5.2 Obscuration meter . 8
5.5.3 Measuring ionization chamber (MIC). 9
5.5.4 CO measuring instrument . 11
5.5.5 Spark generator .12
6 Test method description .13
6.1 General .13
6.2 Arrangement .13
6.3 Measurement parameters . 13
6.4 End-of-test parameters .13
7 Test fires .13
7.1 General .13
7.2 Test fire TF1 — Open cellulosic (wood) fire . 14
7.2.1 General . 14
7.2.2 Fuel . 14
7.2.3 Conditioning . . 14
7.2.4 Preparation . 14
7.2.5 Arrangement . 14
7.2.6 Ignition starter . 15
7.2.7 Test validity criteria . 15
7.2.8 End-of-test conditions . 16
7.3 Test fire TF2 — Smouldering (pyrolysis) wood fire . 16
7.3.1 General . 16
7.3.2 Fuel . 16
7.3.3 Hotplate . . . 16
7.3.4 Arrangement . 16
7.3.5 Heating rate . 16
7.3.6 End-of-test condition . 16
7.3.7 Test validity criteria . 17
7.4 Test fire TF2A and TF2B — Reduced smouldering (pyrolysis) wood fire . 19
7.4.1 General . 19
7.4.2 Fuel . 19
7.4.3 Hotplate . . . 19
7.4.4 Arrangement . 19
7.4.5 Heating rate .20
7.4.6 End-of-test condition . 20
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7.4.7 Test validity criteria . 20
7.5 Test fire TF3 — Glowing smouldering cotton fire . 21
7.5.1 General . 21
7.5.2 Fuel . 21
7.5.3 Arrangement . 22
7.5.4 Ignition . 22
7.5.5 End-of-test condition . 22
7.5.6 Test validity criteria . 23
7.6 Test fire TF3A and TF3B — Reduced glowing smouldering cotton fire . 24
7.6.1 General . 24
7.6.2 Fuel . 24
7.6.3 Arrangement . 24
7.6.4 Ignition . 25
7.6.5 End-of-test condition . 25
7.6.6 Test validity criteria . 25
7.7 Test fire TF4 — Flaming plastics (polyurethane) fire . 26
7.7.1 General . 26
7.7.2 Fuel . 26
7.7.3 Conditioning . .26
7.7.4 Arrangement . 26
7.7.5 Ignition .
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