UL 1784-2015 pdf download

UL 1784-2015 pdf download.Air Leakage Tests of Door Assemblies and Other Opening Protectives.
5 General
5.1 Test sample
5.1.1 A representative test sample for each specific design desired for evaluation shall be subjected to the Cycling Test, Section 6, followed by the Air Leakage Tests, Section 7.
5.1.1 revised Flbruaiy 17, 2015
5.1.2 Each test sample shall be tested from both directions with respect to the opening of the test chamber. The testing can either be conducted on one test sample that is removed and repositioned in the mounting panel or on two separate, identical test samples.
5.12 revIsed FeOruary 17, 2015
5.1.3 The test laboratory has the authority to identity and evaluate representative test installations that shall be subjected to the tests described within this standard. When a test sample and assembly Is entirely symmetrical about the center plane of the test sample and assembly, a single representative direction can be tested. It testing is conducted from one side only, the justification shall be stated within the report.
Exception: For those test samples not defined within the Standard for the Installation of Smoke Door Assemblies, NFPA 105. each size and aspect ratio shall be considered for testing as the peirformance of the assembly is directfr related to its size and construction.
5.1.3 added February 17, 2015
5.2 Conditioning
5.2.1 A test sample containing hygroscopic materials or other materials that can be affected by molsture is to be conditioned In an environment having a dry bulb temperature of 77 ±5°F (25 ±3CC) and a relative humidity of 40 — 65 percent until the moisture content within the test sample reaches equilibrium. The equilibrium shall be based on measurements taken by no less than 3 days apart.
5.2.1 revised February 17,2015
5.3 Test chamber
5.3.1 The air leakage test chamber is to consist of a well-sealed chamber or box with an opening, a removable mounting panel. or one open side in or against WhiCh the test sample is installed and sealed. A means of access into ihe chamber may be provided to facilitate adjustments and observations of the installed test sample.
5.3.2 At least one static pressure tap Is to be provided to measure the chamber pressure and Is to be located so that the reading is unaffected by the velocity of the air supplied to or exiting from the chamber.
5.3.3 The temperature of the chamber shall be deemed the average temperature obtained by a minimum of three thermocouples and no fewer than one thermocouple per 15 square feet (1.4 m2) of test assembly exposed to the furnace symmetrically disposed and distributed to measure the temperature near all parts of the test sample. The end of the thermocouple assembly shall be 6 inches (152 mm) from the exposed face of the test sample or from the wall in which the test sample is installed, The temperatures shall be measured and recorded at intervals not exceeding 5 minutes and at the time each pressure differential is recorded.
6,3 The full stroke noted in 6.2 is the distance that an opening travels from fully closed to fully open when
subØcting it to the cycling test. For swinging type door assemblies the amount of opening is the lesser of
90 ±5 degrees or the maximum permitted by the design of the assembly. For sliding or rolling type door
assemblies the amount of opening is to be the lesser of the maximum permitted by the design of the
assembly or of a sufficient amount to disturb the installed position of all gasketing materials.
6.3 revised February 17. 2015
6.4 The same test sample to be subjected to the Air Leakage Tests, Section 7, shall be used for this test. The interface between the test sample and the test chamber may be resealed after the cycling test. The test sample may be provided with reinforcing parts to accommodate an actuator and a closer: that is, an electric, pneumatic, or hydraulic device. it used to operate the test sample.
6.4 revised February 17. 2015
6.5 To determine the closing toice for swinging doors, the test door is to be placed in the open position and the closing force is to be measured along a base line perpendicular to the closed test door and 30 inches (762 mm) from the test door pivot center with two marks provided, one at 3 Inches (76.2 mm) and the other 1/2 inch (12.7 mm) from the door face.
6.6 The door closer is to be adlusted to provide the minimum closing force necessary to close and latch the door, within 3 seconds after being opened to 90 ±5 degrees or the maximum permitted by the design of the assembly.
6.7 The test door is to be opened beyond the 3 inch (76.2 mm) mark. Holding the door open with a mechanical force gauge, the door is to be allowed to close slowly under the power of the door closer. The greatest force developed during closing is to be recorded as the door travels between the 3 Inch and 1/2 inch (12.7 mm) marks.