AS 7240.8-2007

Table of Contents

1 -  AS 7240.8-2007 Fire detection and alarm systems Part 8: Carbon monoxide fire detectors using an electro-chemical cell in combination with a heat sensor
4 -  PREFACE
5 -  CONTENTS
8 -  Introduction
9 -  1 Scope
9 -  2 Normative references
10 -  3 Definitions
10 -  4 General requirements
10 -  4.1 Compliance
10 -  4.2 Individual alarm indication
10 -  4.3 Connection of ancillary devices
10 -  4.4 Monitoring of detachable detectors
10 -  4.5 Manufacturer's adjustments
11 -  4.6 On- site adjustment of response behaviour
11 -  4.7 Rate- sensitive response behaviour
11 -  4.8 Marking
12 -  4.9 Data
12 -  4.10 Requirements for software controlled detectors
13 -  5 Tests
13 -  5.1 General
16 -  5.2 Repeatability of CO response
16 -  5.3 Directional dependence of CO response
17 -  5.4 Directional dependence of heat response
19 -  5.5 Lower limit of heat sensitivity
19 -  5.6 Reproducibility of CO response
19 -  5.6.1 Object of the test
20 -  5.7 Reproducibility of heat response
20 -  5.8 Exposure to chemical agents at environmental concentrations
21 -  5.9 Long- term stability of CO response
22 -  5.10 Saturation
22 -  5.11 Exposure to chemical agents that can be present during a fire
23 -  5.12 Variation in supply parameters
24 -  5.13 Air movement
25 -  5.14 Dry heat ( operational)
25 -  5.15 Cold ( operational)
26 -  5.16 Damp heat, cyclic ( operational)
28 -  5.17 Damp heat, steady state ( endurance)
29 -  5.18 Low humidity, steady state ( endurance)
29 -  5.19 Sulfur dioxide ( SO2) corrosion ( endurance)
30 -  5.20 Shock ( operational)
32 -  5.21 Impact ( operational)
33 -  5.22 Vibration, sinusoidal ( operational)
34 -  5.23 Vibration, sinusoidal ( endurance)
35 -  5.24 Electromagnetic compatibility ( EMC), immunity tests ( operational)
36 -  5.25 Fire sensitivity
38 -  6 Test report
39 -  Annex A (normative) Gas test chamber for response threshold value and cross sensitivity measurements
40 -  Annex B (normative) Heat tunnel for response time and response temperature measurements
41 -  Annex C (normative) Apparatus for impact test
43 -  Annex D (normative) Fire test room
45 -  Annex E (normative) Smouldering (pyrolysis) wood fire (TF2)
48 -  Annex F (normative) Glowing smouldering cotton fire (TF3)
51 -  Annex G (normative) Open plastics (polyurethane) fire (TF4)
53 -  Annex H (normative) Liquid (heptane) fire (TF5)
55 -  Annex I (normative) Deep-seated smouldering cotton fire (TF9)
57 -  Annex J (informative) Information concerning the construction of the gas test chamber
59 -  Annex K (informative) Construction of the heat tunnel

Abstract

Specifies requirements, test methods and performance criteria for point multisensor fire detectors that incorporate an electro-chemical cell for sensing CO in combination with one or more heat sensors.

General Product Information

Published
Document Type	Standard
Status	Current
Publisher	Standards Australia
Pages
ISBN
Committee	FP-002
Supersedes	DR 06154
Revision Of	DR AS ISO 7240.8:2018
Superseded By	AS ISO 7240.8:2018