ISO 6182-10:2014 pdf download.Fire protection — Automatic sprinkler systems — Part 10: Requirements and test methods for domestic sprinklers
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
4.3 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 2 .
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.
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
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):
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.
6.4.2 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.ISO 6182-10 pdf download.ISO 6182-10 pdf download
