These requirements cover tests for flammability of plastic materials used for parts in devices and appliances. Not for use in food, drug, cosmetic or medical device manufacturing. Ul 94 underwriters laboratories test standard ul 94 is one of the most widely used flammability tests for determining relative flammability for plastic materials. Ul 94 standard for tests for flammability of plastic. The results may help in the assessment of ignition hazard but should not be used in isolation as evidence that a product or material is safe. Failure to pass the ul 94 v test is a precondition of all vtm ratings.
Ul 94, the standard for safety of flammability of plastic. Flammability test apparatus as per ul 94 vertical horizontal burning microprocessor timer with manual motorized burner movement the ul test serves as a preliminary indication of a plastics material acceptability for use as part of a device or. This standard contains revisions through and including may 22, 2001. This standard contains revisions through and including august 12, 2005. Ul 94 test standards for plastics details category. Burning time of each individual test specimen s after first and second flame applications. Methods 94v and 94vtm are used for vertical burn, a more stringent test than 94hb. Astm d3801 20 standard test method for measuring the. Test procedures for evaluating flammability of interior materials.
Test for flammability of plastic materials for parts. Ul 94 test for flammability of plastic materials for parts in devices and appliances by caroline gold overview plastics have become one of the most useful types of material known to mankind. Processes innovative polymers product line includes flameretardant polyurethanes that are specially formulated for use in manufacturing medical devices, electricalelectronic housings and components for items such as appliances, and automotive parts. Flammability of polymers appalachian state university. An investigation of the ul94v plastics flammability test. Ul94 test for flammability of plastic materials for parts. Ul 1694 standard for tests for flammability of small.
Ul 94 flammability test method ul94 standard test method. They are intended to serve as a preliminary indication of their acceptability with respect to. Test for flammability of plastic materials for parts in. Ul94 ul 94 standard flammability ul94 ul 94 standard flammability iceman18 mechanical op 18 aug 08 12. Ul 94 test for flammability of plastic materialsscope.
Test procedures for evaluating flammability of interior. Ul 94 vertical and horizontal flammability tester youtube. It is also applicable in the horizontal, vertical flammability test of the relative combustion characteristic of foam plastics whose density is noless than 250kgm according to iso845 test method. Polyvinyl chloride, polyethylene, and rubber insulating tape. Other ul tests 94vtm, 945v, 94hbf and radiant panel ul94 contains a range of tests for a variety if materials and scenarios such as 94vtm for. Perform flammability classification in accordance with paragraph 8 of ul 94 fifth edition, test for flammability of plastic materials for parts in devices and appliances 50w 20 mm vertical burning test. Ul94 flame retardant tester is used for the flammability testing of plastic materials such as v0 v1 v2, hb, 5v, hf1 hf2, hbf material or foam, and used in consumer electric devices and. Ul94 test for flammability of plastic materials for parts in devices and appliances by caroline gold overview plastics have become one of the most useful types of material known to mankind. Horizontal vertical flame chamber tester with touch screen. Caution this method of test is not designed to assess the fire hazard of any given product. Plastic is a high molecular weight material composed of repeating organic molecules monomers. Specimens that do not exhibit a burn through hole are classified 945v a specimens that burn through hole are classified 945v a specimen.
Ul94 is the standard applied by the american underwriters laboratories for the testing of the flammability and fire safety of plastic materials used in devices and appliances. Test procedures for evaluating flammability of interior materials barbara c. Ul 94 flammability test method ul 94 standard test method for testing the flammability of building products this fire test response standard for comparative surface burning behavior of building materials is applicable to exposed vertical surfaces such as walls. Ul 94 test for flammability of plastic materials ecosafene. Test for flammability of plastic materials for parts in devices and appliances ul94 flammability of plastic mat. Flammability test apparatus as per ul 94 vertical horizontal burning microprocessor timer with manual motorized burner movement the ul test serves as a preliminary indication of a plastics material acceptability for use as part of a device or appliance with respect to its flammability.
Posted on may 8, 2014 by phil ul is the abbreviation for the underwriters laboratories, this is an independent organisation in the united states to control and certificate product safety. Ul 1715 standard for fire test of interior finish material. Ansi ul 94 smallscale test data does not pertain to building materials, furnishings and related contents. Ul 94 flammability of plastic materials ecosafene have rich experience to provide ul 94 flammability of plastic materials ul 94. Understanding ul 94 certifications and limitations lets shed some light on what the ul 94 standard and its associated flammability ratings are and, more importantly, what they are not. Test procedures specified have been determined to be applicable to small components with an overall volume of less than 2500 mm 3 0. Ul 94 flammability test method ul94 standard test method for. Filmed at western washington university, 11242014, featuring bradley fenbert and john. Ul 94 flammability rating summary 5va surface burn burning stops within 60 seconds after. This method is used to determine the ul 94 vtm0, vtm1 and vtm2 flammability ratings of thin materials. Ul 94 vertical burning classification test of superchute. In the loi test, a candle like sample is supported in a vertical. Ul94 standard for tests for flammability of plastic.
This method is used to determine the ul 94 v0, v1 and v2 flammability ratings. Ul94 vertical flame test instructional video youtube. I have a customer spec which requires v0 on the assembly. It is mainly used in plastic and other nonmetallic material sample, solid material. They are intended to serve as a preliminary indication of their acceptability with respect to flammability for a particular application. Ul 94 flame classifications ul94 flame ratings for plastics. The video of ul 94 flammability test procedure is attached in this web page. This document explains the underwriters laboratory standard for testing the flammability properties of plastic materials used for parts in devices and appliances. Material shall be classified 945v a or 945vb on the basis of test results obtained on small bar and plaque specimens. Ansiul 94 smallscale test data does not pertain to building materials, furnishings and related contents. Ul 94 flammability test method ul94 standard test method for testing the flammability of building products this firetest response standard for comparative surface burning behavior of building materials is applicable to exposed vertical surfaces such as walls. The standard determines the materials tendency to either extinguish or spread the flame once the specimen has been ignited. Ul94 test for flammability of plastic materials for.
Flammability test ul94 materials are tested for flammability to meet the ul94 standard. Ul 94 flammability testing is the first step toward obtaining a plastic recognition and subsequent listing in the plastics recognized component directory former known as yellow cards. The test evaluates both the burning and afterglow times and dripping of the burning test specimen. May 08, 2014 what does the ul94 flammability rating mean.
Standard test method for measuring the comparative burning characteristics of solid plastics in a vertical position. Test procedures in ul 1694 are applicable to small components with an overall volume of less than 2500 mm 3 0. The materials are classified into ul94 flammability classes v0, v1, v2, hb and 5va and 5vb. The 94hb test describes the horizontal burn method. Ul 94, the standard for safety of flammability of plastic materials for parts in devices and appliances testing there are two types of preselection test programs conducted on plastic materials to measure flammability characteristics. Ul 94, the standard for safety of flammability of plastic materials for parts in devices and appliances testing, is a plastics flammability standard released by underwriters laboratories of the united states. Underwriters laboratory ul94 ul testing is a method of classifying a materials tendency to either extinguish or spread a flame once it has been ignited and although originally developed by ul, it has now been incorporated into many national and international standards iso 9772 and 9773. The horizontal burning test is used to determine the hb flammability rating of a material. Determining risk of fire and steps taken to mitigate effects preselection testing focus on ul 94 v test. This plastics flammability standard is issued by underwriters laboratories of the usa. Specimens that do not exhibit a burn through hole are classified 94 5v a specimens that burn through hole are. Jul 01, 2018 ul 94 flame retardant tester is used for the flammability testing of plastic materials such as v0 v1 v2, hb, 5v, hf1 hf2, hbf material or foam, and used in consumer electric devices and.
Test for flammability of plastic materials for parts in devices and appliances issue date. D5025 specification for laboratory burner used for smallscale burning tests on plastic materials. Ansi ul 94 smallscale test data is intended solely for determining the flammability of plastic materials used in the components and parts of endproduct devices and appliances, where the acceptability of the combination is determined by ul. Ul 94 is defined as the standard for safety of flammability of plastic materials for parts in devices and appliances testing. Ul94 ul 94 standard flammability ieee electrical code.
The outer enclosure meets v0 standard as far as material and thickness. The first determines the materials tendency either to extinguish or to spread the flame once the. Peek polymer flammability and the inadequacy of the ul94. Determine test procedures and performance criteria that demonstrate improved repeatability over. Burning and afterglow times after second flame application s. Cone calorimeter test has an advantage over bunsen. Ul 94 flammability classification test for plastic materials. D5048 test method for measuring the comparative burning characteristics and resistance to burnthrough of solid plastics using a 125mm flame. The 945v test is for enclosures for products that are not easily moved or are attached to a conduit system. It measures the ability of plastic part to extinguish the flame after ignition and its dripping behavior in response to a small open flame or radiant heat source under controlled. This is a short instructional video about how to set up and execute a ul 94 standard vertical flame test. Specimens that do not exhibit a burn through hole are classified 945v a specimens that burn through hole are. Ul 94 is the standard for safety of flammability of plastic materials for parts in electrical equipment and accessories. In this article, a 3d convective heat transfer model was developed to simulate ignition times for the ul94 test.
The flammability rating is calculated for a test specimen as a function of the burning rate and taking account of the material thickness. An experimental procedure was proposed to measure ignition times of. Ul 94 flammability ul 746a shortterm properties ul746b. Model building, life safety and fire codes include numerous requirements that products and materials include specified minimum flammability ratings.
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