UL 2901-2013 pdf download
UL 2901-2013 pdf download.Outline of Investigation for Antifreeze Solutions for Use in Fire Sprinkler Systems.
17.5.2 After the data collection system is operating, the spray from the fournozzle spray burner is to be ignited and then allowed to burn freely for 120 seconds while flowing a total of 1.6 gpm (6.0 1/mm) of heptane through the line burner assembly. After the 120 second free-burn period, the antifreeze solution is to be discharged through the open sprinklers starting at flowing pressure of 10 psig (69 kPa) and then gradually increasing the pressure to the maximum pressure specified in Table 17.1. At nominal pressure increments of 10 psig (69 kPa), the pressure is to be maintained at each test pressure for a nominal dwell time of 10 seconds before increasing the pressure to the next incremental pressure Value.
17.5.3 Total heat release rate measurements shall be recorded continuously throughout the duration of the test.
18 FIre Fighting Effectiveness
18.1 When discharging the most concentrated solution of antifreeze, representative residential sprinklers shall demonstrate compliance with the fire test requirements descnbed in the Fire Test Section of the Standard for Residential Sprinklers for Fire Protection Service. UL 1626, when tested in accordance with 18.2— 184.
18.2 The test room for these tests is to be configured based upon a rated sprinkler coverage area of 16 feet by 16 feet (4.9 m by 4.9 m).
18.3 Recessed pendent and horizontal sidewall residential sprinklers that have previously demonstrated compliance with the fire tests specified in UL 1626 using water, are to be utilized for these tests. The following tests are to be conducted in accordance with the Fire Test Section of UL 1626 except that the most concentrated solution of antifreeze is to be discharged from the sprinkler in lieu of water:
a) Recessed pendent sprinkler having a nominal discharge coefficient of 4.9 tested with nominal pressure of 7 psig (48 kPa) at the sprinkler inlet with the frame arms orientated perpendicular to the short wall (See 18.4):
b) Recessed pendent sprinkler having a nominal discharge coefficient of 4.9 tested with
nominal pressure of 100 psig (690 kPa) at the sprinkler inlet with the frame arms orientated
parallel to the short wall (See 18.4);
C) Recessed horizontal sidewall sprinkler having a nominal discharge coefficient of 4.2 tested with nominal pressure of 23 psig (159 kPa) at the sprinkler inlet with the test fire located on the far wall (opposite of the wall in which the sprinklers are installed) (See 18.4): and
d) Recessed horizontal sidewall sprinkler having a nominal discharge coefficient of 4.2 tested with nominal pressure of 100 psig (690 KPa) at the sprinkler inlet with the test tire located on the far wall (opposite of the wall in which the sprinklers are installed) (See 18.4).
18,4 The flowing pressures indicated in 18.3 are to be based upon using an adlusted discharge coefficient (K-factor) for the sprinkler calculated as follows:
d) Method for hydraulically calculating a sprinkler system using the antifreeze solution:
e) Statement indicating that contaminates or other foreign materials within a sprinkler system may adversely impact the properties and performance of the antifreeze solution;
f) Information on the electrical conductivity of the antifreeze solution:
g) Information regarding safe handling procedures. including the manufacturers material safety data sheet;
h) Identification of metallic, elastomeric and polymeric materials for which the solution is intended to be used;
i) Maximum volume of antifreeze solution to be used within a sprinkler system, if applicable;
j) A statement Indicating that the antifreeze solution should only be used in areas subject to freezing unless otherwise permitted by the authority having jurisdiction;
k) Information and means for verifying the proper concentration of the antifreeze solution in the field installations:
I) Statement indicating that the antifreeze solution is pre-mixed at the factory and Is not to be diluted with water or mixed with other constituents in the field;
m) Manufacturer’s recommendations for clean-up in the event of release of the antifreeze solution from a sprinkler system; arid
n) A statement indicating that the use of the antifreeze solution shall be In conformance with all applicable health and environmental regulabons for the location where it is installed.
