UL 1489-2016 pdf download

UL 1489-2016 pdf download.Fire Tests of Fire Resistant Pipe Protection Systems Carrying Combustible Liquids.
7 Leakage Test
7.1 After the test assembly cools from the fire endurance test, conduct the leakage test as foliows
7.2 Pressunze the pipe with water to 150 percent of the working pressure rating of the pipe. For example,
Standard Specification for Pipe, Steel. Black and Hot-Dipped. Zinc-Coated, Welded and Seamless, ASTM
A53 B may be used as a guide to determine the working pressure rating of schedule 40 steel pipe.
7.3 A leakage test conducted prior to the tire endurance test is not required but may be useful to ensure the piping network is tree of openings and to establish a benchmark pressure value.
7,4 The leakage test pressure shall be maintained for at least 15 mm after which time the test specimen shall be examined for leaks The test pressure within the pipe system shall not be reduced while performing this examination.
CONDITiONS OF ACCEPTANCE
8 General
8.1 Fire exposure
8.1.1 The fire resistive pipe protection system shall remain intact during the fire exposure and water hose stream tests without developing any openings through which the interior of the pipe is visible. The test assembly, including but not limited to pipe supports and connections, shall also remain intact as to ensure the piping network will remain supported after the fire exposure and water hose stream tests.
82 Thermal protection
8.2.1 The hre resistive pipe protection system shall limit the temperature on the pipe such that the transmission of heat through the test sample during the desired rating period does not raise the temperature measured by any single ttierrnocouple on the pipe by more than 325°F (180°C) above its initial temperature or raise the average temperature measured by any cross section of thermocouples on the pipe by more Ihan 250F (140°C) above Its indial temperature.
8.3 Correction — tire exposure test
8.3.1 If the indicated rating period time for the fire resistive pipe protection system in the fire exposure test is 60 mm or moi’e, it shall be increased or decreased by the following correction to compensate for significant vanation of the measured test furnace temperature from the standard time-temperature curve within the limits of 5.4.1. The correcbon shall be expressed by the following formula:
8.4 Leakage
8.4.1 The test assembly shall be evaluated in accordance with the Leakage Test. SectIon 7 without evidence of leakage.
REPORT
9 Results
9,1 The report of the performance of samples during these tests shall include the following:
a) A description of the assembly and supporting construchon, materials and installation of the fire resistive pipe protection systems, induding drawings depicting geometry, exact size (length, width, and thickness), and locahon of fire resistive pipe protection systems within the test assembly.
b) The relative humidity of the test assembly and test sample materials, if applicable.
C) The time-temperature curve utilized for the evaluation ( Standard for Fire Tests of Building
Construction and Materials, UL 263 or Standard for Rapid Rise Fire Tests of Protection
Materials for Structural Steel, UL 1709), including the temperature of the furnace and the
temperatures of the test samples recorded during the internal fire exposure tests.
d) The measured differential furnace pressure between the exposed and unexposed surfaces of the test assembly during the tests, and a statement of the basis for the selected pressure.
e) Observations and significant details of the behavior of the fire resistive pipe protection systems during the fire exposure and hose stream tests.