ISO/DIS 12239

Smoke alarms using scattered light, transmitted light or ionization

Dispositifs d'alarme de fumée fonctionnant suivant le principe de la diffusion de la lumière, de la transmission de la lumière ou de l'ionisation

Standards Content (sample)

DRAFT INTERNATIONAL STANDARD
ISO/DIS 12239
ISO/TC 21/SC 3 Secretariat: SA
Voting begins on: Voting terminates on:
2020-11-13 2021-02-05
Smoke alarms using scattered light, transmitted light or
ionization

Dispositifs d'alarme de fumée fonctionnant suivant le principe de la diffusion de la lumière, de la

transmission de la lumière ou de l'ionisation
ICS: 13.220.20
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENT AND APPROVAL. IT IS
THEREFORE SUBJECT TO CHANGE AND MAY
NOT BE REFERRED TO AS AN INTERNATIONAL
STANDARD UNTIL PUBLISHED AS SUCH.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL,
This document is circulated as received from the committee secretariat.
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STANDARDS MAY ON OCCASION HAVE TO
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WHICH REFERENCE MAY BE MADE IN
Reference number
NATIONAL REGULATIONS.
ISO/DIS 12239:2020(E)
RECIPIENTS OF THIS DRAFT ARE INVITED
TO SUBMIT, WITH THEIR COMMENTS,
NOTIFICATION OF ANY RELEVANT PATENT
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PROVIDE SUPPORTING DOCUMENTATION. ISO 2020
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ISO/DIS 12239:2020(E)
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ii © ISO 2020 – All rights reserved
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ISO/DIS 12239:2020(E)
Contents Page

Foreword ......................................................................................................................................................................................................................................vii

Introduction ............................................................................................................................................................................................................................viii

1 Scope ................................................................................................................................................................................................................................. 1

2 Normative references ...................................................................................................................................................................................... 1

3 Terms and definitions ..................................................................................................................................................................................... 2

4 General requirements ..................................................................................................................................................................................... 5

4.1 Conf ormity .................................................................................................................................................................................................. 5

4.2 Optional and additional functions .......................................................................................................................................... 5

4.3 Smoke alarm type ................................................................................................................................................................................. 5

4.4 Response threshold value of detectors using scattered or transmitted light ................................... 5

4.5 Alarm condition ..................................................................................................................................................................................... 6

4.5.1 Aural indicator ................................................................................................................................................................... 6

4.5.2 Visual indicators ............................................................................................................................................................... 6

4.6 External main power source-on visual indicator ...................................................................................................... 6

4.7 Fault condition visual indicator — Optional function ........................................................................................... 7

4.8 Visual indicator visibility ............................................................................................................................................................... 7

4.9 Smoke alarm signals ........................................................................................................................................................................... 7

4.10 Test facility .................................................................................................................................................................................................. 7

4.11 Means of calibration ........................................................................................................................................................................... 7

4.12 User-replaceable components ................................................................................................................................................... 7

4.13 Main power source .............................................................................................................................................................................. 7

4.13.1 General...................................................................................................................................................................................... 7

4.13.2 Internal ..................................................................................................................................................................................... 8

4.13.3 External .................................................................................................................................................................................... 8

4.14 Standby power source ...................................................................................................................................................................... 8

4.14.1 General...................................................................................................................................................................................... 8

4.14.2 Monitoring of standby power source ............................................................................................................. 8

4.14.3 Standby power source low condition silence—Optional function ....................................... 9

4.15 External power supply equipment ........................................................................................................................................ 9

4.16 Battery connections ............................................................................................................................................................................ 9

4.17 User-replaceable battery ................................................................................................................................................................ 9

4.17.1 General...................................................................................................................................................................................... 9

4.17.2 Indication ............................................................................................................................................................................... 9

4.18 Electrical safety ...................................................................................................................................................................................10

4.19 Battery – Disconnect facility ....................................................................................................................................................10

4.20 Connection of external connectable devices ..............................................................................................................10

4.21 Terminals for external conductors......................................................................................................................................10

4.22 Protection against the ingress of foreign bodies ....................................................................................................10

4.23 Interconnectable smoke alarms — Optional function .......................................................................................11

4.23.1 General...................................................................................................................................................................................11

4.24 Alarm-silence facility — Optional function .................................................................................................................11

4.25 Temporary disablement – Optional Function ...........................................................................................................12

4.26 Radioactive material in type B smoke alarms ...........................................................................................................12

4.27 Smoke alarms with voice — Optional Function ......................................................................................................12

4.27.1 General...................................................................................................................................................................................12

4.27.2 Voice messages ...............................................................................................................................................................13

4.28 Smoke alarms using radio frequency links (Optional Function) ..............................................................13

4.28.1 General...................................................................................................................................................................................13

4.28.2 Response time .................................................................................................................................................................13

4.28.3 Radio frequency link range ..................................................................................................................................13

4.28.4 Identification code verification ........................................................................................................................13

4.28.5 Environmental requirements for radio frequency interconnected smoke

alarms .....................................................................................................................................................................................13

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ISO/DIS 12239:2020(E)

4.29 Response to slowly developing fires (Drift compensation) Optional Function ...........................13

4.30 Marking ......................................................................................................................................................................................................14

4.30.1 General...................................................................................................................................................................................14

4.30.2 Smoke-alarm ....................................................................................................................................................................14

4.31 Packaging ..................................................................................................................................................................................................15

4.32 Hardware Documentation ..........................................................................................................................................................16

4.33 Additional requirements for software controlled smoke alarms .............................................................16

4.33.1 General...................................................................................................................................................................................16

4.33.2 Software documentation ........................................................................................................................................17

4.33.3 Software design..............................................................................................................................................................17

4.33.4 Storage of programs and data ...........................................................................................................................17

5 Tests ................................................................................................................................................................................................................................18

5.1 General ........................................................................................................................................................................................................18

5.1.1 Optional functions .......................................................................................................................................................18

5.1.2 Atmospheric conditions for tests....................................................................................................................18

5.1.3 Operating conditions for tests ...........................................................................................................................18

5.1.4 Mounting arrangements .........................................................................................................................................18

5.1.5 Tolerances ...........................................................................................................................................................................19

5.1.6 Measurement of response threshold value ............................................................................................19

5.1.7 Provision for tests ........................................................................................................................................................19

5.1.8 Test schedule ....................................................................................................................................................................20

5.1.9 Test report ..........................................................................................................................................................................20

5.2 Directional dependence ...............................................................................................................................................................21

5.2.1 Object of test .....................................................................................................................................................................21

5.2.2 Test procedure ................................................................................................................................................................21

5.2.3 Requirements ..................................................................................................................................................................21

5.3 Initial sensitivity .................................................................................................................................................................................21

5.3.1 Object of test .....................................................................................................................................................................21

5.3.2 Test procedure ................................................................................................................................................................21

5.3.3 Requirement .....................................................................................................................................................................22

5.4 Repeatability ..........................................................................................................................................................................................22

5.4.1 Object of test .....................................................................................................................................................................22

5.4.2 Test procedure ................................................................................................................................................................22

5.4.3 Requirements ..................................................................................................................................................................22

5.5 Air movement........................................................................................................................................................................................22

5.5.1 Object of test .....................................................................................................................................................................22

5.5.2 Test procedure ................................................................................................................................................................22

5.5.3 Requirements ..................................................................................................................................................................23

5.6 Dazzling ......................................................................................................................................................................................................23

5.6.1 Object of test .....................................................................................................................................................................23

5.6.2 Test procedure ................................................................................................................................................................23

5.6.3 Requirements ..................................................................................................................................................................23

5.7 Dry heat (operational) ...................................................................................................................................................................24

5.7.1 Object of test .....................................................................................................................................................................24

5.7.2 Test procedure ................................................................................................................................................................24

5.7.3 Requirements ..................................................................................................................................................................24

5.8 Cold (operational) .............................................................................................................................................................................24

5.8.1 Object of test .....................................................................................................................................................................24

5.8.2 Test procedure ................................................................................................................................................................25

5.8.3 Requirement .....................................................................................................................................................................25

5.9 Damp heat (operational) .............................................................................................................................................................25

5.9.1 Object of test .....................................................................................................................................................................25

5.9.2 Test procedure ................................................................................................................................................................25

5.9.3 Requirements ..................................................................................................................................................................26

5.10 Sulfur dioxide (SO ) corrosion ...............................................................................................................................................26

5.10.1 Object of test .....................................................................................................................................................................26

5.10.2 Test procedure ................................................................................................................................................................26

5.10.3 Requirements ..................................................................................................................................................................27

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ISO/DIS 12239:2020(E)

5.11 Impact (operational) .......................................................................................................................................................................27

5.11.1 Object of test .....................................................................................................................................................................27

5.11.2 Test procedure ................................................................................................................................................................27

5.11.3 Requirements ..................................................................................................................................................................28

5.12 Vibration, sinusoidal (operational) ....................................................................................................................................28

5.12.1 Object of test .....................................................................................................................................................................28

5.12.2 Test procedure ................................................................................................................................................................28

5.12.3 Requirements ..................................................................................................................................................................29

5.13 Vibration, sinusoidal (endurance) ......................................................................................................................................29

5.13.1 Object of test .....................................................................................................................................................................29

5.13.2 Test procedure ................................................................................................................................................................29

5.13.3 Requirements ..................................................................................................................................................................30

5.14 Extended temperature (operational) — Optional function ..........................................................................30

5.14.1 Object of test .....................................................................................................................................................................30

5.14.2 Test procedure ................................................................................................................................................................30

5.14.3 Requirement .....................................................................................................................................................................31

5.15 Electromagnetic compatibility (EMC) immunity tests (operational) ...................................................31

5.15.1 Carry out the following EMC immunity tests as specified in IEC 62599-2 .................31

5.16 Fire sensitivity ......................................................................................................................................................................................31

5.16.1 Object of test .....................................................................................................................................................................31

5.16.2 Test procedure ................................................................................................................................................................31

5.16.3 Requirements ..................................................................................................................................................................33

5.17 Battery-low condition ....................................................................................................................................................................33

5.17.1 Object of test .....................................................................................................................................................................33

5.17.2 Test procedure ................................................................................................................................................................33

5.17.3 Requirements ..................................................................................................................................................................34

5.18 85 dBA Sound output — Optional function ................................................................................................................34

5.18.1 Object of test .....................................................................................................................................................................34

5.18.2 Method of test ..................................................................................................................................................................34

5.18.3 Requirements ..................................................................................................................................................................35

5.19 70 dBA Sound output — Optional function ................................................................................................................35

5.19.1 Object of test .....................................................................................................................................................................35

5.19.2 Method of test ..................................................................................................................................................................35

5.19.3 Requirements ..................................................................................................................................................................36

5.20 Sounder durability ............................................................................................................................................................................36

5.20.1 Object of test .....................................................................................................................................................................36

5.20.2 Test procedure ................................................................................................................................................................36

5.20.3 Requirements ..................................................................................................................................................................36

5.21 Interconnectable smoke alarms ............................................................................................................................................37

5.21.1 Object of test .....................................................................................................................................................................37

5.21.2 Test procedure ...............................
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