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AS ISO 7240.8:2018

[Current]

Fire detection and alarm systems, Part 8: Point-type fire detectors using a carbon monoxide sensor in combination with a heat sensor

The objective of this Standard is to specify requirements, test methods, and performance criteria for point-type multi-sensor fire detectors that incorporate at least one carbon monoxide (CO) sensor in combination with one or more heat sensors, for use in fire detection and alarm systems installed in buildings (refer to AS ISO 7240.1).

Published: 20/12/2018

Pages: 57

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 and abbreviated terms

3.1 Terms and definitions

3.2 Abbreviated terms

4 Requirements

4.1 Compliance

4.2 Individual alarm indication

4.2.1

4.2.2

4.3 Connection of ancillary devices

4.4 Monitoring of detachable detectors

4.5 Manufacturer's adjustments

4.6 On-site adjustment of response behaviour

4.6.1

4.6.2

4.7 Rate-sensitive response behaviour

4.7.1

4.7.2

4.7.3

4.8 Requirements for software-controlled detectors

4.8.1 General

4.8.2 Software design

4.8.3 The storage of programs and data

4.8.3.1

4.8.3.2

5 Tests

5.1 General

5.1.1 Atmospheric conditions for tests

5.1.1.1

5.1.1.2

5.1.2 Mounting arrangements

5.1.3 Operating conditions for tests

5.1.3.1

5.1.3.2

5.1.4 Tolerances

5.1.4.1

5.1.4.2

5.1.5 Measurement of CO response value

5.1.5.1

5.1.5.2

5.1.5.3

5.1.5.4

5.1.5.5

5.1.5.6

5.1.5.7

5.1.5.8

5.1.5.9

5.1.6 Measurement of heat sensor response value

5.1.6.1

5.1.6.2

5.1.6.3

5.1.6.4

5.1.6.5

5.1.6.6

5.1.6.7

5.1.7 Provision for tests

5.1.7.1

5.1.7.2

5.1.8 Test schedule

5.1.9 Test report

5.2 Repeatability of CO response

5.2.1 Object of the test

5.2.2 Test procedure

5.2.2.1

5.2.2.2

5.2.3 Requirements

5.2.3.1

5.2.3.2

5.3 Directional dependence of CO response

5.3.1 Object of the test

5.3.2 Test procedure

5.3.2.1

5.3.2.2

5.3.2.3

5.3.3 Requirements

5.3.3.1

5.3.3.2

5.4 Directional dependence of heat response

5.4.1 Object of the test

5.4.2 Test procedure

5.4.2.1

5.4.2.2

5.4.2.3

5.4.2.4

5.4.3 Requirements

5.5 Lower limit of heat sensitivity

5.5.1 Object of the test

5.5.2 Test procedure

5.5.3 Requirements

5.5.3.1

5.5.3.2

5.6 Reproducibility of CO response

5.6.1 Object of the test

5.6.2 Test procedure

5.6.2.1

5.6.2.2

5.6.2.3

5.6.3 Requirements

5.6.3.1

5.6.3.2

5.7 Reproducibility of heat response

5.7.1 Object of the test

5.7.2 Test procedure

5.7.2.1

5.7.2.2

5.7.3 Requirements

5.8 Exposure to chemical agents at environmental concentrations

5.8.1 Object of the test

5.8.2 Test procedure

5.8.2.1

5.8.2.2

5.8.2.3

5.8.2.4

5.8.2.5

5.8.2.6

5.8.2.7

5.8.3 Requirements

5.9 Long-term stability of CO response

5.9.1 Object of the test

5.9.2 Test procedure

5.9.2.1

5.9.2.2

5.9.3 Requirements

5.9.3.1

5.9.3.2

5.9.3.3

5.10 Saturation

5.10.1 Object of the test

5.10.2 Test procedure

5.10.2.1

5.10.2.2

5.10.2.3

5.10.2.4

5.10.2.5

5.10.2.6

5.10.2.7

5.10.2.8

5.10.2.9

5.10.3 Requirements

5.10.3.1

5.10.3.2

5.10.3.3

5.11 Exposure to chemical agents which may be present during a fire

5.11.1 Object of the test

5.11.2 Test procedure

5.11.2.1

5.11.2.2

5.11.2.3

5.11.2.4

5.11.2.5

5.11.2.6

5.11.2.7

5.11.2.8

5.11.2.9

5.11.3 Requirements

5.11.3.1

5.11.3.2

5.11.3.3

5.12 Variation in supply parameters

5.12.1 Object of the test

5.12.2 Test procedure

5.12.2.1

5.12.2.2

5.12.2.3

5.12.2.4

5.12.3 Requirements

5.12.3.1

5.12.3.2

5.12.3.3

5.13 Air movement

5.13.1 Object of the test

5.13.2 Test procedure

5.13.2.1

5.13.2.2

5.13.2.3

5.13.3 Requirements

5.13.3.1

5.13.3.2

5.14 Dry heat (operational)

5.14.1 Object of the test

5.14.2 Test procedure

5.14.2.1 Reference

5.14.2.2 State of the specimen(s) during conditioning

5.14.2.3 Conditioning

5.14.2.4 Measurements during conditioning

5.14.2.5 Final measurements

5.14.2.5.1

5.14.2.5.2

5.14.3 Requirements

5.14.3.1

5.14.3.2

5.14.3.3

5.15 Dry heat endurance

5.15.1 Object

5.15.2 Test procedure

5.15.2.1 Reference

5.15.2.2 State of the specimen during conditioning

5.15.2.3 Conditioning

5.15.2.4 Final measurements

5.15.2.4.1

5.15.2.4.2

5.15.2.4.3

5.15.2.4.4

5.15.3 Requirements

5.15.3.1

5.15.3.2

5.15.3.3

5.15.3.4

5.16 Cold (operational)

5.16.1 Object of the test

5.16.2 Test procedure

5.16.2.1 Reference

5.16.2.2 State of the specimen(s) during conditioning

5.16.2.3 Conditioning

5.16.2.4 Measurements during conditioning

5.16.2.5 Final measurements

5.16.2.5.1

5.16.2.5.2

5.16.2.5.3

5.16.2.5.4

5.16.3 Requirements

5.16.3.1

5.16.3.2

5.16.3.3

5.16.3.4

5.17 Damp heat, cyclic (operational)

5.17.1 Object

5.17.2 Test procedure

5.17.2.1 Reference

5.17.2.2 State of the specimen during conditioning

5.17.2.3 Conditioning

5.17.2.4 Measurements during conditioning

5.17.2.5 Final measurements

5.17.3 Requirements

5.17.3.1

5.17.3.2

5.17.3.3

5.17.3.4

5.18 Damp heat, steady-state (endurance)

5.18.1 Object of the test

5.18.2 Test procedure

5.18.2.1 Reference

5.18.2.2 State of the specimen(s) during conditioning

5.18.2.3 Conditioning

5.18.2.4 Final measurements

5.18.3 Requirements

5.18.3.1

5.18.3.2

5.18.3.3

5.18.3.4

5.19 Low humidity, steady-state (endurance)

5.19.1 Object of the test

5.19.2 Test procedure

5.19.2.1 State of the specimen during conditioning

5.19.2.2 Conditioning

5.19.2.3 Final measurements

5.19.2.3.1

5.19.2.3.2

5.19.3 Requirements

5.19.3.1

5.19.3.2

5.19.3.3

5.20 Sulfur dioxide SO2 corrosion (endurance)

5.20.1 Object of the test

5.20.2 Test procedure

5.20.2.1 Reference

5.20.2.2 State of the specimen during conditioning

5.20.2.3 Conditioning

5.20.2.4 Final measurements

5.20.3 Requirements

5.20.3.1

5.20.3.2

5.20.3.3

5.20.3.4

5.21 Shock (operational)

5.21.1 Object of the test

5.21.2 Test procedure

5.21.2.1 Reference

5.21.2.2 State of the specimen during conditioning

5.21.2.3 Conditioning

5.21.2.4 Measurements during conditioning

5.21.2.5 Final measurements

5.21.3 Requirements

5.21.3.1

5.21.3.2

5.21.3.3

5.21.3.4

5.22 Impact (operational)

5.22.1 Object of the test

5.22.2 Test procedure

5.22.2.1 Apparatus

5.22.2.2 State of the specimen during conditioning

5.22.2.3 Conditioning

5.22.2.4 Measurements during conditioning

5.22.2.5 Final measurements

5.22.3 Requirements

5.22.3.1

5.22.3.2

5.22.3.3

5.22.3.4

5.22.3.5

5.23 Vibration, sinusoidal, (operational)

5.23.1 Object of the test

5.23.2 Test procedure

5.23.2.1 Reference

5.23.2.2 State of the specimen during conditioning

5.23.2.2.1

5.23.2.2.2

5.23.2.3 Conditioning

5.23.2.3.1

5.23.2.3.2

5.23.2.4 Measurements during conditioning

5.23.2.5 Final measurements

5.23.2.5.1

5.23.2.5.2

5.23.2.5.3

5.23.3 Requirements

5.23.3.1

5.23.3.2

5.23.3.3

5.23.3.4

5.24 Vibration, sinusoidal (endurance)

5.24.1 Object of the test

5.24.2 Test procedure

5.24.2.1 Reference

5.24.2.2 State of the specimen during conditioning

5.24.2.2.1

5.24.2.2.2

5.24.2.3 Conditioning

5.24.2.3.1

5.24.2.3.2

5.24.2.4 Final measurements

5.24.3 Requirements

5.24.3.1

5.24.3.2

5.24.3.3

5.24.3.4

5.25 Electromagnetic Compatibility (EMC), Immunity tests (operational)

5.25.1

5.25.2

5.26 Fire sensitivity

5.26.1 Object of the test

5.26.2 Test procedure

5.26.2.1 Principle

5.26.2.2 Test fires

5.26.2.2.1

5.26.2.2.2

5.26.2.3 Mounting the specimens

5.26.2.3.1

5.26.2.3.2

5.26.2.3.3

5.26.2.4 Initial conditions

5.26.2.4.1

5.26.2.4.2

5.26.2.5 Recording of the fire parameters and response value

5.26.2.5.1

5.26.2.5.2

5.26.2.5.3

5.26.2.6 Requirements

6 Test report

7 Marking

7.1

7.2

7.3

7.4

7.5

8 Data

8.1 Hardware documentation

8.1.1

8.1.2

8.1.3

8.2 Software documentation

8.2.1

8.2.2

Annex A

A.1

A.2

A.3

A.4

A.5

A.6

A.7

Annex B

B.1

B.2

B.3

B.4

B.5

B.6

B.7

B.8

B.9

Annex C

C.1

C.2

C.3

C.4

C.5

C.6

C.7

Annex D

D.1

D.2

D.3

Annex E

E.1 Fuel

E.2 Conditioning

E.3 Preparation

E.4 Hotplate

E.4.1

E.4.2

E.5 Arrangement

E.6 Heating rate

E.7 Test validity criteria

E.7.1

E.7.2

E.8 Variables

E.9 End-of-test condition

Annex F

F.1 Fuel

F.2 Conditioning

F.3 Arrangement

F.4 Ignition

F.5 Test validity criteria

F.5.1

F.5.2

F.6 End-of-test condition

Annex G

G.1 Fuel

G.2 Conditioning

G.3 Arrangement

G.4 Ignition

G.5 Test validity criteria

G.5.1

G.5.2

G.6 End-of-test condition

Annex H

H.1 Fuel

H.2 Arrangement

H.3 Ignition

H.4 Test validity criteria

H.4.1

H.4.2

H.5 End-of-test condition

Annex I

I.1

I.2

I.3

I.4

I.5

I.6

I.7

Annex J

J.1

J.2

J.3

J.4

J.5

J.6

J.7

J.8

J.9

Cited references in this standard

IEC 60068-2-27:2008

[Current]

Environmental testing - Part 2-27: Tests - Test Ea and guidance: Shock

IEC 62599-2:2010

[Current]

Alarm systems - Part 2: Electromagnetic compatibility - Immunity requirements for components of fire and security alarm systems

IEC 60068-2-78:2012

[Current]

Environmental testing - Part 2-78: Tests - Test Cab: Damp heat, steady state

IEC 60068-2-30:2005

[Current]

Environmental testing - Part 2-30: Tests - Test Db: Damp heat, cyclic (12 h + 12 h cycle)

IEC 60068-2-42:2003

[Current]

Environmental testing - Part 2-42: Tests - Test Kc: Sulphur dioxide test for contacts and connections

Content history

ISO 7240-8:2014

[Current]

AS 7240.8-2007

[Superseded]

DR AS ISO 7240.8:2018

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