AS 7240.12-2007

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

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.

First published as AS 7240.12-2007.