Standard
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AS 7240.7:2018
[Current]Fire detection and alarm systems, Part 7: Point type smoke detectors using scattered light, transmitted light or ionization (ISO 7240-7:2018, MOD)
The objective of this Standard is to specify requirements, test methods and performance criteria for point-type smoke detectors that operate using scattered light, transmitted light or ionization, for use in fire detection and alarm systems installed in buildings (refer to AS ISO 7240.1). This Standard also covers point-type smoke detectors that incorporate more than one smoke sensor operating on these principles. Additional requirements and test methods for such detectors are given in Annex N.
Published: 20/12/2018
Pages: 62
Table of contents
Cited references
Content history
Table of contents
Header
About this publication
Preface
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 General requirements
4.1 Compliance
4.2 Response threshold value of detectors using scattered or transmitted light
4.3 Individual alarm indication
4.4 Connection of ancillary devices
4.5 Monitoring of detachable detectors
4.6 Manufacturer's adjustments
4.7 On-site adjustment of response behaviour
4.8 Protection against the ingress of foreign bodies
4.8.1 Closed detectors
4.8.2 Open detectors
4.9 Response to slowly developing fires
4.10 Requirements for software-controlled detectors
4.10.1 General
4.10.2 Software design
4.10.3 Storage of programs and data
5 Tests
5.1 General
5.1.1 Atmospheric conditions for tests
5.1.2 Operating conditions for tests
5.1.3 Mounting arrangements
5.1.4 Tolerances
5.1.5 Measurement of response threshold value
5.1.6 Provision for tests
5.1.7 Test schedule
5.1.8 Test report
5.2 Repeatability
5.2.1 Object of test
5.2.2 Test procedure
5.2.3 Requirements
5.3 Directional dependence
5.3.1 Object of test
5.3.2 Test procedure
5.3.3 Requirements
5.4 Reproducibility
5.4.1 Object of test
5.4.2 Test procedure
5.4.3 Requirements
5.5 Variation in supply parameters
5.5.1 Object of test
5.5.2 Test procedure
5.5.3 Requirements
5.6 Air movement
5.6.1 Object of test
5.6.2 Test procedure
5.6.3 Requirements
5.7 Dazzling
5.7.1 Object of test
5.7.2 Test procedure
5.7.3 Requirements
5.8 Additional tests for open detectors
5.8.1 Object of the test
5.8.2 Test procedure
5.8.2.1
5.8.2.2
5.8.2.3
5.9 Dry heat (operational)
5.9.1 Object of test
5.9.2 Test procedure
5.9.2.1 Reference
5.9.2.2 State of specimen during conditioning
5.9.2.3 Conditioning
5.9.2.4 Measurements during conditioning
5.9.2.5 Final measurements
5.9.3 Requirements
5.10 Cold (operational)
5.10.1 Object of test
5.10.2 Test procedure
5.10.2.1 Reference
5.10.2.2 State of specimen during conditioning
5.10.2.3 Conditioning
5.10.2.4 Measurements during conditioning
5.10.2.5 Final measurements
5.10.3 Requirements
5.11 Damp heat, steady state (operational)
5.11.1 Object of test
5.11.2 Test procedure
5.11.2.1 Reference
5.11.2.2 State of the specimen during conditioning
5.11.2.3 Conditioning
5.11.2.4 Measurements during conditioning
5.11.2.5 Final measurements
5.11.3 Requirements
5.12 Damp heat, steady state (endurance)
5.12.1 Object of test
5.12.2 Test procedure
5.12.2.1 Reference
5.12.2.2 State of the specimen during conditioning
5.12.2.3 Conditioning
5.12.2.4 Final measurements
5.12.3 Requirements
5.13 Sulfur dioxide (SO2) corrosion (endurance)
5.13.1 Object of test
5.13.2 Test procedure
5.13.2.1 Reference
5.13.2.2 State of specimen during conditioning
5.13.2.3 Conditioning
5.13.2.4 Final measurements
5.13.3 Requirements
5.14 Shock (operational)
5.14.1 Object of test
5.14.2 Test procedure
5.14.2.1 Reference
5.14.2.2 State of specimen during conditioning
5.14.2.3 Conditioning
5.14.2.4 Measurements during conditioning
5.14.2.5 Final measurements
5.14.3 Requirements
5.15 Impact (operational)
5.15.1 Object of test
5.15.2 Test procedure
5.15.2.1 Apparatus
5.15.2.2 State of specimen during conditioning
5.15.2.3 Conditioning
5.15.2.4 Measurements during conditioning
5.15.2.5 Final measurements
5.15.3 Requirements
5.16 Vibration, sinusoidal, (operational)
5.16.1 Object of test
5.16.2 Test procedure
5.16.2.1 Reference
5.16.2.2 State of specimen during conditioning
5.16.2.3 Conditioning
5.16.2.4 Measurements during conditioning
5.16.2.5 Final measurements
5.16.3 Requirements
5.17 Vibration, sinusoidal (endurance)
5.17.1 Object of test
5.17.2 Test procedure
5.17.2.1 Reference
5.17.2.2 State of specimen during conditioning
5.17.2.3 Conditioning
5.17.2.4 Final measurements
5.17.3 Requirements
5.18 Electromagnetic compatibility (EMC) immunity tests (operational)
5.18.1
5.18.2
5.19 Fire sensitivity
5.19.1 Object of test
5.19.2 Test procedure
5.19.2.1 Principle of test
5.19.2.2 Test fires
5.19.2.3 Mounting of specimens
5.19.2.4 Initial conditions
5.19.2.5 Recording of the fire parameters and response values
5.19.3 Requirements
6 Test report
7 Marking
8 Data
8.1 Hardware documentation
8.1.1
8.1.2
8.1.2
8.2 Software documentation
8.2.1
8.2.2
Annex A
A.1
A.2
A.3
A.4
A.5
A.6
Annex B
B.1
B.2
B.3
B.4
Annex C
C.1 Obscuration meter
C.1.1
C.1.2
C.1.3
C.1.4
C.2 Measuring ionization chamber (MIC)
C.2.1 General
C.2.2 Operating method and basic construction
C.2.2.1
C.2.2.2
C.2.2.3
C.2.2.4
C.2.2.5
C.2.3 Technical data
Annex D
D.1
D.2
D.3
D.4
Annex E
E.1
E.2
E.3
E.4
E.5
E.6
E.7
Annex F
Annex G
G.1 Fuel
G.2 Hotplate
G.3 Arrangement
G.4 Heating rate
G.5 End-of-test condition
G.6 Test validity criteria
Annex H
H.1 Fuel
H.2 Arrangement
H.3 Ignition
H.4 End-of-test condition
H.5 Test validity criteria
Annex I
I.1 Fuel
I.2 Arrangement
I.3 Ignition
I.4 End-of-test condition
I.5 Test validity criteria
Annex J
J.1 Fuel
J.2 Arrangement
J.3 Ignition
J.4 End-of-test condition
J.5 Test validity criteria
Annex K
K.1
K.2
K.3
K.4
K.5
K.6
K.7
Annex L
L.1 Principles of compensation for detector drift
L.2 Linear compensation
L.3 Stepwise compensation
L.4 High-rate compensation
L.5 Avoidance of the non-linear region
Annex M
Annex N
N.1 General
N.2 Test apparatus
Annex O
O.1 General
O.2 Test apparatus
Appendix ZZ
ZZ.1 Scope
ZZ.2 Variations
Bibliography
Cited references in this standard
[Current]
Alarm systems — Part 2: Electromagnetic compatibility — Immunity requirements for components of fire and security alarm systems
Content history
[Superseded]
[Available Superseded]
[Superseded]
[Superseded]
AS 1603.2-1997 Rec:2016
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