Table of Contents

1 -  AS 7240.12-2007 Fire detection and alarm systems Part 12: Line type smoke detectors using a transmitted optical beam
4 -  PREFACE
5 -  CONTENTS
7 -  Introduction
9 -  1 Scope
9 -  2 Normative references
10 -  3 Terms and definitions
11 -  4 General requirements
11 -  4.1 Compliance
11 -  4.2 Individual alarm indication
11 -  4.3 Connection of ancillary devices
11 -  4.4 Monitoring of detachable detectors and connections
11 -  4.5 Manufacturer’s adjustments
11 -  4.6 On-site adjustment of response threshold value
12 -  4.7 Protection of optical components
12 -  4.8 Limit of compensation
12 -  4.9 Marking
12 -  4.10 Data
13 -  4.11 Requirements for software controlled detectors
14 -  4.12 Fault signalling
14 -  5 Test methods
14 -  5.1 General
16 -  5.2 Reproducibility
17 -  5.3 Repeatability
18 -  5.4 Directional dependence
19 -  5.5 Variation of supply parameters
19 -  5.6 Rapid changes in attenuation
20 -  5.7 Slow changes in attenuation
20 -  5.8 Optical path length dependence
21 -  5.9 Fire sensitivity
23 -  5.10 Stray light
24 -  5.11 Dry heat (operational)
25 -  5.12 Cold (operational)
26 -  5.13 Damp heat, steady state (operational)
27 -  5.14 Damp heat, steady state (endurance)
27 -  5.15 Vibration, sinusoidal (endurance)
28 -  5.16 Electromagnetic compatibility (EMC), immunity tests (operational)
29 -  5.17 Sulfur dioxide, SO2, corrosion (endurance)
30 -  5.18 Impact (operational)
31 -  6 Test report
32 -  Annex A (informative) Compensation for detector drift
37 -  Annex B (normative) Bench for response threshold value measurements
39 -  Annex C (normative) Fire test room
41 -  Annex D (normative) Smouldering pyrolysis wood fire (TF2)
43 -  Annex E (normative) Glowing smouldering cotton fire (TF3)
45 -  Annex F (normative) Flaming plastics (polyurethane) fire (TF4)
47 -  Annex G (normative) Flaming liquid (n-heptane) fire (TF5)
48 -  Annex H (normative) Smoke-measuring instruments
51 -  Annex I (normative) Apparatus for stray light
53 -  Annex J (informative) Information concerning the construction of the measuring ionization chamber

Abstract

Specifies requirements, test methods and performance criteria for line type smoke detectors utilizing the attenuation and/or changes in attenuation of an optical beam, for use in fire detection systems installed in buildings.

General Product Information

Published
Document Type	Standard
Status	Current
Publisher	Standards Australia
Pages
ISBN
Committee	FP-002
Under Revision	DR AS 7240.12:2018
Supersedes	DR 05186
Superseded By	AS 7240.12:2018