ISO 6182-9:2005

INTERNATIONAL ISO
STANDARD 6182-9
First edition
2005-11-01
Fire protection — Automatic sprinkler
system —
Part 9:
Requirements and test methods for water
mist nozzles
Protection contre l'incendie — Systèmes d'extinction automatiques du
type sprinkler —
Partie 9: Prescriptions et méthodes d'essai des ajutages (brouillard)

Reference number
©
ISO 2005
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ii © ISO 2005 – All rights reserved

Contents Page
Foreword. v
Introduction . vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions. 2
4 Product consistency. 5
5 General requirements. 5
5.1 Materials . 5
5.2 Prevention of field adjustment . 5
5.3 Drawing review. 5
5.4 Pipe and fitting threads. 5
5.5 Strainers and filters . 5
6 Elastomeric materials. 6
6.1 Properties . 6
6.2 Test specimen . 6
7 Water mist nozzle requirements. 7
7.1 Dimensions. 7
7.2 Nominal operating temperatures . 7
7.3 Operating temperatures . 7
7.4 Water flow and distribution and droplet size. 7
7.5 Function. 8
7.6 Strength of body . 8
7.7 Strength of release element. 8
7.8 Leak resistance and hydrostatic strength. 9
7.9 Heat exposure . 9
7.10 Thermal shock for glass bulb nozzles. 9
7.11 Corrosion. 9
7.12 Integrity of nozzle coatings . 10
7.13 Water hammer . 10
7.14 Dynamic heating . 10
7.15 Resistance to heat . 10
7.16 Resistance to vibration . 10
7.17 Resistance to impact. 11
7.18 Lateral discharge . 11
7.19 30-day leakage resistance . 11
7.20 Vacuum resistance . 11
7.21 Clogging . 11
7.22 Fire tests . 11
7.23 Shipboard machinery spaces. 12
7.24 Shipboard passenger cabins. 12
7.25 Shipboard public spaces . 13
7.26 Shipboard storage and shopping areas. 14
7.27 Low hazard areas. 14
7.28 Standard hazard areas . 14
7.29 Resistance to low temperature. 14
8 Test methods. 14
8.1 General. 14
8.2 Visual examination . 14
8.3 Service load and body strength test . 15
8.4 Leak resistance and hydrostatic strength tests . 15
8.5 Functional test. 15
8.6 Heat-responsive element operating characteristics . 16
8.7 Heat exposure test . 19
8.8 Thermal shock test for glass bulb nozzles.20
8.9 Strength test for release elements . 21
8.10 Water flow test. 21
8.11 Water distribution and droplet size tests . 22
8.12 Corrosion tests. 22
8.13 Nozzle coating tests. 25
8.14 Heat-resistance test . 25
8.15 Water-hammer test. 25
8.16 Vibration test . 25
8.17 Impact test . 26
8.18 Lateral discharge test . 26
8.19 30-day leakage test . 26
8.20 Vacuum test. 26
8.21 Clogging test . 26
8.22 Shipboard machinery space fire test method. 27
8.23 Passenger cabin fire tests. 31
8.24 Shipboard public space fire tests. 36
8.25 Freezer test . 38
9 Water mist nozzle marking. 38
9.1 General . 38
9.2 Nozzle housings. 39
10 Design, installation and maintenance instructions. 39
10.1 General . 39
10.2 Requirements . 39
Annex A (normative) Tolerance limit calculation methods. 53
Annex B (informative) Analysis of the strength test for fusible elements. 56
Annex C (informative) Nozzle response sample calculations. 57
Annex D (normative) Tolerances .59
Bibliography . 60

iv © ISO 2005 – All rights reserved

Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies
(ISO member bodies). The work of preparing International Standards is normally carried out through ISO
technical committees. Each member body interested in a subject for which a technical committee has been
establ
...