ISO 6182-10:2014

INTERNATIONAL ISO
STANDARD 6182-10
Second edition
2014-05-15
Fire protection — Automatic sprinkler
systems —
Part 10:
Requirements and test methods for
domestic sprinklers
Protection contre l’incendie — Systèmes d’extinction automatiques du
type sprinkler —
Partie 10: Exigences et méthodes d’essai des sprinklers domestiques
Reference number
©
ISO 2014
© ISO 2014
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ii © ISO 2014 – All rights reserved

Contents Page
Foreword .v
Introduction .vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
3.1 General . 1
3.2 Type of sprinklers according to type of heat-responsive element . 3
3.3 Type of sprinklers according to type of water distribution and orientation . 3
3.4 Special types of sprinklers . 4
4 Product consistency . 4
4.1 Quality control program . 4
4.2 Leak resistance testing . 4
4.3 Glass bulb integrity test . 5
5 Product assembly. 5
5.1 General . 5
5.2 Dynamic O-ring seals . 5
5.3 Rated pressure . 5
5.4 Dry sprinklers . 5
6 Requirements . 5
6.1 Dimensions . 5
6.2 Temperature rating and colour coding (see 7.2) . 6
6.3 Operating temperatures (see 7.2) . 6
6.4 Water flow and distribution (see 7.3 and 7.4) . 6
6.5 Function (see 7.5) . 7
6.6 Service load and strength of sprinkler body (see 7.6) . 8
6.7 Strength of heat-responsive element (see 7.7) . 8
6.8 Leak resistance and hydrostatic strength (see 7.8) . 9
6.9 Heat exposure (see 7.9) . 9
6.10 Thermal shock for glass bulb sprinklers (see 7.10) .10
6.11 Corrosion (see 7.11) .10
6.12 Water hammer (see 7.12) .11
6.13 Dynamic heating (see 7.13) .11
6.14 Resistance to heat (see 7.14) .11
6.15 Vibration (see 7.15) .11
6.16 Impact (see 7.16) .11
6.17 Rough usage test (see 7.17) .12
6.18 Fire performance (see 7.18) .12
6.19 Lateral discharge (see 7.19) .16
6.20 30-day leakage resistance (see 7.20) .16
6.21 Vacuum resistance (see 7.21).16
6.22 Room response (see 7.22) .16
6.23 Freezing test (see 7.23) .16
6.24 Dry-type sprinkler deposit loading (see 7.24) .16
6.25 Dry sprinkler air tightness (see 7.25) .16
6.26 Protective covers (see 7.26) .16
6.27 Dezincification of brass parts (see 7.27) .17
6.28 Stress corrosion . magnesium chloride (see
7.28) .17
7 Test methods .17
7.1 Examination.17
7.2 Operating temperature tests (see 6.3) .18
7.3 Water flow constant test (see 6.4.1) .19
7.4 Water distribution tests (see 6.4.2) .20
7.5 Functional test (see 6.5).24
7.6 Service load and strength of sprinkler body test (see 6.6) .27
7.7 Strength of heat-responsive element test (see 6.7).28
7.8 Leak resistance and hydrostatic strength tests (see 6.8) .29
7.9 Heat exposure test (see 6.9) .29
7.10 Thermal shock test for glass bulb sprinklers (see 6.10) .30
7.11 Corrosion tests (see 6.11) .30
7.12 Water hammer test (see 6.12) .32
7.13 Dynamic heating test (see 6.13) .32
7.14 Heat resistance test (see 6.14) .33
7.15 Vibration test (see 6.15) .33
7.16 Impact test (see 6.16) .34
7.17 Rough usage test (see 6.17) .35
7.18 Fire performance test (see 6.18) .36
7.19 Lateral discharge test (see 6.19) .39
7.20 30-day leakage test (see 6.20) .40
7.21 Vacuum test (see 6.21) .40
7.22 Room response test (see 6.22) .40
7.23 Freezing test (see 6.23) .42
7.24 Dry-type sprinkler deposit loading test (see 6.24) .43
7.25 Dry sprinkler air tightness test (see 6.25) .43
7.26 Protective cover impact test for glass bulb sprinklers (see 6.26) .44
7.27 Dezincification of brass parts test (see 6.27) .45
7.28 Stress corrosion . magnesium chloride test (see
6.28) .46
8 Marking .47
8.1 Sprinklers .47
8.2 Sprinkler housing assemblies and concealed sprinkler cover plates .48
8.3 Protective covers .48
9 Installation instructions .48
Annex A (normative) Tolerance limit calculation methods .50
Annex B (informative) Analysis of the strength test for fusible element .52
Annex C (normative) Tolerances .53
Bibliography .54
iv © ISO 2014 – 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 established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www.iso.org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation on the meaning of ISO specific terms and expressions related to conformity
assessment, as well as information about ISO’s adherence to the WTO principles in the Technical Barriers
to Trade (TBT) see the following URL: Foreword - Supplementary information
The committee responsible for this document is ISO/TC 21, Equipment for fire protection and fire fighting,
Subcommittee SC 5, Fixed fire fighting systems using water.
This second edition cancels and replaces the first edition (ISO 6182-10:2006), of which it constitutes a
minor revision.
ISO 6182 consists of the following parts, under the general title Fire protection — Automatic sprinkler
systems:
— Part 1: Requirements and test methods for sprinklers
— Part 2: Requirements and test methods for wet alarm valves, retard chambers and water motor alarms
— Part 3: Requirements and test methods for dry pipe valves
— Part 4: Requirements and test methods for quick-opening devices
— Part 5: Requirements and test methods for deluge valves
— Part 6: Requirements and test methods for check valves
— Part 7: Requirements and test methods for early suppression fast response (ESFR) sprinklers
— Part 8: Requirements and test methods for pre-action dry alarm valves
— Part 9: Requirements and test methods for water mist nozzles
— Part 10: Requirements and test methods for domestic sprinklers
— Part 11: Requirements and test methods for pipe hangers
— Part 12: Requirements and test methods for grooved-end components for steel pipe systems
Introduction
Domestic sprinklers are primarily intended for use in dwelling units. These sprinklers are specifically
designed to discharge water in a manner that is expected to prevent flashover within the compartment
of fire origin and improve the chance for occupants to escape or be evacuated in dwelling units such as
homes, apartments, condominiums, and hotel sleeping rooms. While domestic sprinklers are designed
to protect against injury and loss of life, the use of these sprinklers has demonstrated the ability to
provide property protection as well. Other types of sprinklers are addressed in the separate parts of the
ISO 6182 series.
These sprinklers characteristically have a very flat spray pattern. This allows for the sprinklers to wet the
walls of the compartment which reduces the potential for the vertical surfaces to substantially contribute
to a flashover condition. These sprinklers also discharge water in a manner that provides a relatively
uniform distribution of water on the protected floor area. Obstructions can pose a significant obstacle
to domestic sprinklers because of the flat spray pattern. Domestic sprinkler installation guidelines
need to account for the flat spray pattern when considering the distances between obstructions and the
sprinkler.
Product standards, such as this one, can provide a minimum level of safety in the built environment as
well as a level of quality to the products on the market.
vi © ISO 2014 – All rights reserved

INTERNATIONAL STANDARD ISO 6182-10:2014(E)
Fire protection — Automatic sprinkler systems —
Part 10:
Requirements and test methods for domestic sprinklers
1 Scope
This part of ISO 6182 specifies performance requirements, test methods, and marking requirements for
domestic sprinklers.
These sprinklers are intended to provide control of fires in domestic occupancies, to prevent flashover
(total involvement) in the room of fire origin and to improve the probability for successful escape or
evacuation of the occupants.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
ISO 7-1, Pipe threads where pressure-tight joints are made on the threads — Part 1: Dimensions, tolerances
and designation
ISO 5660-1, Reaction-to-fire tests — Heat release, smoke production and mass loss rate — Part 1: Heat
release rate (cone calorimeter method)
ASTM G36-94, Standard Practice for Evaluating Stress-Corrosion-Cracking Resistance of Metals and Alloys
in a Boiling Magnesium Chloride Solution
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1 General
3.1.1
assembly load
force exerted on the sprinkler body excluding hydrostatic pressure
3.1.2
average design strength
glass bulb suppliers’ specified and assured lowest average design strength of any batch of 50 bulbs
3.1.3
design length
maximum length of the sprinkler coverage area
3.1.4
design load
force exerted on the release element at the service load of the sprinkler
3.1.5
design width
maximum width of the sprinkler coverage area
3.1.6
housing assembly
escutcheon
ornamental or protective component(s) around the hole from which the sprinkler penetrates the plane
of the ceiling or the wall
Note 1 to entry: For the purposes of this part of ISO 6182, housing assembly applies to recessed and concealed
sprinklers. See Figure 1.
a) Concealed sprinkler
b) Recessed sprinkler
c) Flush sprinkler
Key
1 housing assembly
2 ceiling
3 cover plate
4 escutcheon
Figure 1 — Concealed, recessed, and flush sprinklers
2 © ISO 2014 – All rights reserved

3.1.7
response time index
RTI
measure of sprinkler sensitivity
RTIt= u
where
t is equal to the time constant of the heat-responsive element, expressed in seconds;
u is the gas velocity, expressed in metres per second.
0,5
Note 1 to entry: The response time index is expressed in units of (m∙s) .
3.1.8
service load
combined force exerted on the sprinkler body by the assembly load of the sprinkler and the equivalent
force of the rated pressure on the inlet
3.1.9
sprinkler
thermosensitive device designed to react at a predetermined temperature by automatically releasing a
stream of water and distributing it in a specified pattern and quantity over a designated area
3.1.9.1
domestic sprinkler
sprinkler intended to provide control of fire in domestic occupancies
3.1.10
standard orientation
orientation that produces the shortest response time with the axis of the sprinkler inlet perpendicular
to the airflow
Note 1 to entry: In the case of symmetrical heat-responsive elements, standard orientation is with the airflow
perpendicular to both the axis of the waterway and the plane of the frame arms; in the case of non-symmetrical
heat-responsive elements, it is with the airflow perpendicular to both the waterway axis and the plane of the
frame arms which produces the shortest response time.
3.2 Type of sprinklers according to type of heat-responsive element
3.2.1
fusible element sprinkler
sprinkler that opens under the influence of heat by the melting of a component
3.2.2
glass bulb sprinkler
sprinkler that opens under the influence of heat by the bursting of the glass bulb through pressure
resulting from expansion of the fluid enclosed therein
3.3 Type of sprinklers according to type of water distribution and orientation
3.3.1
horizontal sprinkler
sprinkler, arranged such that the water stream is directed horizontally against the distribution plate
3.3.2
pendent sprinkler
sprinkler, arranged such that the water stream is directed downwards against the distribution plate
3.3.3
sidewall sprinkler
sprinkler giving a one-sided water distribution over a definite protection area
3.3.4
upright sprinkler
sprinkler, arranged such that the water stream is directed upwards against the distribution plate
3.4 Special types of sprinklers
3.4.1
concealed sprinkler
recessed sprinkler having a cover plate
Note 1 to entry: See Figure 1.
3.4.2
dry sprinkler
assembly comprising of a sprinkler mounted at the outlet of a special extension with a seal at the inlet
that prevents water from entering the extension until it is released by operation of the sprinkler
Note 1 to entry: These sprinklers might consist of pendent, sidewall, or other types.
3.4.3
flush sprinkler (1)
sprinkler in which all or part of the body is mounted above the lower plane of the
ceiling, but all of the heat-responsive collector is below the lower plane of the ceiling
Note 1 to entry: These are not typically frame arm sprinklers.
Note 2 to entry: See Figure 1.
3.4.4
flush sprinkler (2)
sprinkler which is within the wall, but the heat-responsive collector projects
into the room beyond the plane of the wall
Note 1 to entry: These are not typically frame arm sprinklers.
3.4.5
recessed sprinkler
sprinkler of which all or part of the body, other than the thread, is mounted within recessed housing
Note 1 to entry: See Figure 1.
4 Product consistency
4.1 Quality control program
It shall be the responsibility of the manufacturer to implement a quality control program to ensure that
production continuously meets the requirements of this part of ISO 6182.
4.2 Leak resistance testing
Every manufactured sprinkler shall pass a leak resistance test equivalent to a hydrostatic pressure of at
least twice the rated pressure for at least 2 s.
4 © ISO 2014 – All rights reserved

4.3 Glass bulb integrity test
Each glass bulb sprinkler assembly shall be evaluated for glass bulb cracking, breaking, or other damage
as indicated by the loss of fluid. The test shall be conducted after the leakage test.
EXAMPLE The bubble in each glass bulb shall be examined at room ambient temperature. The sprinkler shall
then be heated in a circulating air oven or liquid bath to 5 °C below the minimum operating temperature range
of the sprinkler. The bubble shall then be examined to determine the bubble size has been reduced in accordance
with the glass bulb manufacturer’s specifications. After cooling, the bubble size shall again be examined to
determine the bubble returned to the original size within the tolerance allowed by the glass bulb manufacturer.
5 Product assembly
5.1 General
All domestic sprinklers shall be designed and manufactured such that they cannot be readily adjusted,
dismantled, or reassembled.
NOTE This requirement does not apply to units intended for assembly/adjustment on site, e.g. combinations
of sprinkler and housing assemblies/escutcheons or the assembly of the cover plate to concealed sprinklers.
5.2 Dynamic O-ring seals
The closure of the water way shall not be achieved by the use of a dynamic O-ring or similar seal (an
O-ring or similar seal that moves during operation or is in contact with a component that moves during
operation).
5.3 Rated pressure
Sprinklers shall have a rated pressure of not less than 1,2 MPa (12 bar).
5.4 Dry sprinklers
When installed with the intended fittings specified in the manufacturer’s installation instructions,
dry sprinklers installed in dry systems shall be constructed to minimize the potential to accumulate
water, scale, and sediment on the sprinkler inlet. The sprinkler inlet shall also be constructed not to
substantially impact the sprinkler K-factor or pressure loss through the fitting.
6 Requirements
6.1 Dimensions
6.1.1 Coverage area
This sprinkler shall have an area of coverage not exceeding 37,2 m .
6.1.2 Orifices
All sprinklers shall be constructed so that a sphere of diameter 5 mm can pass through the sprinkler.
6.1.3 Nominal thread sizes
Nominal thread sizes shall be suitable for fittings threaded in accordance with ISO 7-1. The dimensions
of all threaded connections should conform to International Standards where applied or shall conform
to national standards where International Standards are not applicable.
6.2 Temperature rating and colour coding (see 7.2)
The marked nominal temperature rating and colour coding of sprinkler shall be in accordance with
Table 1.
Table 1 — Nominal temperature rating and colour coding
Glass bulb sprinklers Fusible element sprinklers
Marked nominal tempera- Liquid colour code Marked nominal tempera-
ture rating ture rating
°C °C
57 Orange 57 to 77
68 Red 79 to 107
79 Yellow —
93, 107 Green —
6.3 Operating temperatures (see 7.2)
Sprinklers shall be verified to operate within the temperature range of:
t = x ± (0,035x + 0,62)°C
(1)
where
t is the temperature range, rounded to the nearest 0,1 °C;
x is the marked nominal temperature rating (see Table 1).
6.4 Water flow and distribution (see 7.3 and 7.4)
6.4.1 Water flow constant (see 7.3)
6.4.1.1 The flow constant, K, for sprinklers is given by Formula (2):
q
K = (2)
10p
where
p is the pressure, expressed in megapascals (MPa);
q is the flow rate, expressed in litres per minute.
6.4.1.2 The value of the nominal flow constant, K, published in the manufacturer’s design and installation
instructions shall be verified using the test method of 7.3. Each flow constant, K, (calculated) shall be
within ±5 % or ±3 units of the manufacturer’s value, whichever is greater.
6 © ISO 2014 – All rights reserved

6.4.2 Water distribution (see 7.4)
6.4.2.1 General
To demonstrate the required coverage of the protected area allotted to it, a domestic sprinkler
shall comply with the horizontal surface water distribution and vertical surface water distribution
requirements described in 6.4.2.2 and 6.4.2.3.
6.4.2.2 Horizontal surfaces
When installed in accordance with the manufacturer’s design and installation instructions and tested
as described in 7.4.1.1 to 7.4.1.4, a sprinkler shall distribute water over a horizontal surface, such that,
the discharge density collected in any single 300 mm × 300 mm collection pan within the design area
shall be at least 0,8 mm/min, except that
a) no more than four collection pans in each quadrant shall be allowed to be at least 0,6 mm/min for
upright and pendent sprinklers, and
b) no more than eight collection pans shall be allowed to be at least 0,6 mm/min for each half (split
along the sprinkler centerline) of the design area for sidewall sprinklers.
6.4.2.3 Vertical surfaces
When installed in accordance with the design and installation instructions and tested as described in
7.4.2, a sprinkler shall distribute water over vertical surfaces as follows:
a) Walls within the coverage area shall be wetted to at least 700 mm of the ceiling with one sprinkler
operating at the specified design flow rate.
b) For square coverage areas, each wall within the coverage area shall be wetted with at least 5 % of the
sprinkler flow; for rectangular coverage areas, each wall within the coverage area shall be wetted
with a proportional water amount based on 20 % of the total sprinkler discharge in accordance
with Formula (3):
l
W
A =02, (3)
col
l
P
where
A is the required amount of water collected on a wall, expressed in percent;
col
l is the wall length, expressed in metres;
W
l is the total perimeter of coverage area e.g. the length of all walls combined, expressed in
P
metres.
6.5 Function (see 7.5)
6.5.1 Lodgement
When tested in accordance with 7.5.1, the sprinkler shall open and, any lodgement of released parts
shall be cleared within 10 s of release of the heat-responsive element.
6.5.2 Deflector strength
The deflector and its supporting parts shall not sustain significant damage as a result of the deflector
strength test specified in 7.5.2.
If minor damage is noted, testing in accordance with 6.4.2 can be done to demonstrate compliance.
NOTE In most instances, visual examination of the sprinkler will be sufficient to establish conformance with
6.5.2.
6.6 Service load and strength of sprinkler body (see 7.6)
6.6.1 The sprinkler body shall comply with the requirements of 6.6.1.1 or 6.6.1.2
6.6.1.1 The sprinkler body shall not show permanent elongation of more than 0,2 % between the load-
bearing points of the sprinkler body after being subjected to twice the service load as measured according
to 7.6.1 or 7.6.2.
6.6.1.2 The sprinkler body shall not show permanent elongation of more than 50 % of the sprinkler
body with the design load being applied after being subjected to twice the assembly load as measured
according to 7.6.3.
6.6.2 The manufacturer shall specify the average and upper limit of the service or assembly load. These
values shall not be exceeded when tested in accordance with 7.6.1, 7.6.2, or 7.6.3 as applicable
6.7 Strength of heat-responsive element (see 7.7)
6.7.1 Glass bulb elements
When tested in accordance with 7.7, glass bulb elements shall have a design strength lower tolerance
limit (LTL) on the strength distribution curve of at least twice the upper tolerance limit (UTL) of the
service load distribution curve based on calculations with a degree of confidence ( y) of 0,99 for 99 % of
the samples (P). Calculations will be based on normal or Gaussian distribution, except where another
distribution can be shown to be more applicable due to manufacturing or design factors (see Figure 2).
8 © ISO 2014 – All rights reserved

Key
1 average service load
2 service load curve
3 UTL
4 LTL
5 average design strength
6 design strength curve
Figure 2 — Strength curve
6.7.2 Fusible elements
A fusible heat-responsive element in the ordinary temperature range shall be designed to
a) sustain a load of 15 times its design load, corresponding to the maximum service load measured
according to 7.7, for a period of 100 h when tested in accordance with 7.7.2.1, or
b) demonstrate the ability to sustain the design load when tested in accordance with 7.7.2.2 (see
Annex B).
6.8 Leak resistance and hydrostatic strength (see 7.8)
6.8.1 A sprinkler shall not show any sign of leakage when tested according to 7.8.1.
6.8.2 A sprinkler shall not rupture, operate, or release any parts when tested according to 7.8.2.
6.9 Heat exposure (see 7.9)
6.9.1 There shall be no damage to the glass bulb element when the sprinkler is tested by the method
specified in 7.9.1.
6.9.2 Sprinklers shall withstand exposure to increased ambient temperature without evidence of
weakness or failure when tested by the method specified in 7.9.2.
6.10 Thermal shock for glass bulb sprinklers (see 7.10)
Glass bulb sprinklers shall not be damaged when tested according to 7.10. Following the thermal shock
exposure, the sprinkler shall comply with 6.5.1 when tested with an inlet pressure of 0,035 MPa (0,35
bar).
6.11 Corrosion (see 7.11)
6.11.1 Stress corrosion for copper-based alloy components (see 7.11.1)
When tested in accordance with 7.11.1, each sprinkler shall not show any cracks, signs of delamination
or failure that can affect its ability to function as intended.
6.11.2 Sulfur dioxide/carbon dioxide corrosion (see 7.11.2)
NOTE In some countries, this test is not mandatory.
Coated and uncoated sprinklers shall be resistant to sulfur dioxide/carbon dioxide saturated with water
vapour when conditioned in accordance with 7.11.2.
Following exposure, glass bulb sprinkler samples shall either be
a) tested at 0,035 MPa (0,35 bar) in accordance with 6.5.1, or
b) meet the requirements of 6.22 for concealed and recessed sprinklers, or the requirements of 6.13.2
for other types of sprinklers.
Following exposure, half of the fusible element sprinkler samples shall be functionally tested at 0,035 MPa
(0,35 bar) only in accordance with 6.5.1 and the remaining samples shall meet the requirements of 6.22
for concealed and recessed sprinklers or the requirements of 6.13.2 for other types of sprinklers.
6.11.3 Hydrogen sulfide corrosion (see 7.11.3)
NOTE In some countries, this test is not mandatory.
Coated and uncoated sprinklers shall be resistant to hydrogen sulfide saturated with water vapour
when conditioned in accordance with 7.11.3.
Following exposure, glass bulb sprinkler samples shall either be
a) tested at 0,035 MPa (0,35 bar) in accordance with 6.5.1, or
b) meet the requirements of 6.22 for concealed and recessed sprinklers, or the requirements of 6.13.2
for other types of sprinklers.
Following exposure, half of the fusible element sprinkler samples shall be functionally tested at 0,035 MPa
(0,35 bar) only in accordance with 6.5.1 and the remaining samples shall meet the requirements of 6.22
for concealed and recessed sprinklers or the requirements of 6.13.2 for other types of sprinklers.
6.11.4 Salt spray corrosion (see 7.11.4)
Coated and uncoated sprinklers shall be resistant to salt spray when conditioned in accordance with
7.11.4.
Following exposure, glass bulb sprinkler samples shall either be
a) tested at 0,035 MPa (0,35 bar) in accordance with 6.5.1, or
b) meet the requirements of 6.22 for concealed and recessed sprinklers, or the requirements of 6.13.2
for other types of sprinklers.
10 © ISO 2014 – All rights reserved

Following exposure, half of the fusible element sprinkler samples shall be functionally tested at 0,035 MPa
(0,35 bar) only in accordance with 6.5.1 and the remaining samples shall meet the requirements of 6.22
for concealed and recessed sprinklers or the requirements of 6.13.2 for other types of sprinklers.
6.11.5 Moist air exposure (see 7.11.5)
Sprinklers shall be resistant to moist air exposure when tested in accordance with 7.11.5. Following
exposure, the sprinklers shall be functionally tested at 0,035 MPa (0,35 bar) only in accordance with
6.5.1.
6.12 Water hammer (see 7.12)
Sprinklers shall not leak during or after the pressure surges described in 7.12. After being subjected to
the test according to 7.12, they shall show no signs of mechanical damage, shall meet the requirement of
6.8.1 and shall operate when functionally tested to the requirements of 6.5.1 at a pressure of 0,035 MPa
(0,35 bar) only.
6.13 Dynamic heating (see 7.13)
6.13.1 Standard orientation
0,5
Sprinklers shall have an RTI not exceeding 50 (m·s) when tested in the standard orientation in
accordance with 7.13.
For concealed and recessed sprinklers, see 6.22.
6.13.2 Post-exposure RTI
After exposure to the corrosion test according to 6.11.2, 6.11.3, and 6.11.4, sprinklers shall be tested in
the standard orientation in accordance with 7.13.1 to determine the post-exposure RTI. All post-exposure
RTI values shall be calculated as in 7.13.2. The values determined shall meet one of the following:
a) none of the post-exposure RTI values shall exceed the limits referenced in 6.13.1;
b) the average RTI value shall not exceed 130 % of the pre-exposure average value.
6.14 Resistance to heat (see 7.14)
Open sprinklers shall be resistant to high temperatures when tested in accordance with 7.14. After
exposure, the sprinkler shall not fracture or break. If visual deformation is observed on the sprinkler
orifice, it shall meet the requirements of 6.4.1. If visual deformation is observed on the sprinkler frame
or deflector, it shall meet the requirements of 6.4.2.
6.15 Vibration (see 7.15)
Sprinklers shall be able to withstand the effects of vibration without deterioration when tested in
accordance with 7.15. After the vibration test of 7.15, sprinklers shall show no visible deterioration and
shall meet the requirements of 6.8.1 and 6.13.1.
6.16 Impact (see 7.16)
Sprinklers shall show no fracture or deformation, and shall meet the requirements of 6.8.1 and 6.13.1
after the impact test of 7.16. If the sprinkler is deformed during testing, water distribution testing in
accordance with 6.4.2 shall be required.
6.17 Rough usage test (see 7.17)
A sprinkler shall withstand the effects of rough usage without deterioration of its performance
characteristics. Following 3 min of tumbling as described in 7.17, the sprinkler shall comply with the leak
requirement of 6.8.1 and the RTI requirement of 6.13.1 in standard orientation only, or in accordance
with 6.22 a), the requirement for recessed and concealed sprinklers.
6.18 Fire performance (see 7.18)
When fire-tested as described in 7.18, sprinklers shall meet the following requirements:
a) Maximum temperature for 76 mm below the ceiling shall not exceed 315 °C.
b) Maximum temperature for 1,6 m above the floor shall not exceed 93 °C.
c) Temperature at the location described in item b) shall not exceed 54 °C for more than any continuous
2-min period.
d) Maximum ceiling material temperature for 6,0 mm behind the finished ceiling surface shall not
exceed 260 °C.
e) A maximum of two sprinklers shall operate.
f) The third sprinkler at the doorway shall not operate.
See Figure 3 (pendent or upright sprinklers) or Figures 4 and 5 (sidewall sprinklers) for temperature
measuring locations.
12 © ISO 2014 – All rights reserved

Dimensions in millimetres
Key
1 thermocouple, 6 mm above ceiling and 254 mm diagonally from the corner
2 wood crib
3 simulated furniture
4 thermocouple, 76 mm below ceiling and 1 6
...