Ul 746a pdf

Ul 746a pdf

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ul 94 foam material testing pdf ( hbf/ hf- 1/ hf- 2) : inclusion of density value in section 12 ( proposal) 8. bpt ul 746a pdf test revision in ul 746a polymer variation program ( table 9. standards and conformity assessment system, the american national standards institute ( ansi) empowers its members and constituents to strengthen the u. ul 746a polymeric materials - short term property evaluations ul revision edition 6 published date: janu last revision: janu ansi approved: janu dod approved: novem. tests for flammability of plastic materials for parts in devices and appliances. marketplace position in the global economy while helping to assure the safety and health of consumers and the protection of the environment. underwriters laboratories inc. summary of properties. 1 for addition, deletion, or change in level of colorant/ pigment loading ( 746a) 7. the screening test is very helpful in determining which may be the preferred sampling technique. ul 746a is a standard for the evaluation of the flammability of plastic materials for electrical equipment. click here to view these changes in full send comments ( with copy to org) to: raymond suga,, raymond. inclusion of material grouping scheme in ul 746a for comparative tracking index ( cti) test method as per iec 60112 based on iec 60664 back to standard 746a, edition 6 the cost to purchase this standard varies depending on whether you are ordering pdf a hardcopy, pdf or combination of the two. specimen first wrapped around 1/ 2 bar and taped into cylinder shape. as the voice of the u. two sets of five specimens at 70 + 1° c for seven days and cooled in desiccator for 4 hours. 1 these requirements cover short- term test procedures to be used for the evaluation of materials used for parts intended for specific applications in electrical end products. listing of ul 746 series testing performed by the world leader in electrical testing, eltek international laboratories. it does not absorb visible or uv light substantially and is highly resistant to photolytic degradation. 2 together with the requirements mentioned in supplementary test procedures, section 5, these investigations provide data with respect to the. to arrange ul 746a and ul 746b testing of polymeric materials, request a quote online now or call. clarification between short term properties ( ul746a) and long term properties ( ul746b) within table 9. polymeric materials, short- term property evaluations. indicate the choice of test medium ( oil) 10. this equipment is available in pc based and plc based system. ul solutions offers third- party certification for the standards and properties of your plastic materials through various tests and analyses. ul746aed- standard for. ul standard edition 6 published date: septem last revision: janu ansi approved: janu dod approved: novem. ul copyrighted material not authorized for further reproduction or distribution without permission from ul ul standard for safety for polymeric materials short term property evaluations, ul 746a sixth edition, dated septem summary of topics this revision of ansi/ ul 746a dated j was issued to alignment of requirements of. polymeric materials - short term property evaluations. com comment deadline: novem. conditioning • two sets of five specimens at 23 + 2° c/ 50 + 5% rh/ 48 hrs. it is similar to the iec 60112, 6060 standards, and covers the determination of material flammability, ignition characteristics and electrical tracking. inclusion of uv and water immersion testing in table 9. starting test voltage for cti ( 746a) 5. ul 746a, section 21 - ac dielectric breakdown voltage and strength. term property evaluations ( revision of ansi/ ul 746a- ) the following topics for ul 746a are being recirculated: ( 1) clarification of hai electrodes contact point. polymeric materials, long- term property evaluations. ( ul) 333 pfingsten road northbrook, ilul standard for safety for polymeric materials – long term property evaluations, ul 746b third edition, dated aug revisions: this standard contains revisions through and including novem. this document outlines a process for adding equivalent substitute insulation materials to a company’ s ul section general or their approved materials list for their manufactured end product based on the logic found in ul 746 and ul 1446. specimen 2” by 8” by thickness ( generally. ul 746 is divided into several parts, each focusing on different aspects of material testing and evaluation: ul 746a: standard for polymeric materials – short term property evaluations. this process logic can apply to ansi and ieee standards that reference ul standards 746 and/ or ul 1446. based on these results, ul certifies that similar articles made from this material, 1 under the same conditions of printing, ul 746a pdf will meet the performance obtained as per the ul 94 and ul 746a tests. this performance is verified by ul annually to certify that both the material1 and the additive manufacturing process conditions provide the same 2) ( proposal) 9. tripping current preset at 0. the following standards are directly related to the evaluation of polymeric materials. this section provides methods for material identification and evaluation of mechanical, electrical, physical properties, chemical resistance, and flammability. features & specifications: test voltage – 100 to 600 vac, adjustable ( option = 1200v ac) electrode voltage setting – 0 to 230v, 0 to 450v, 0 to 650v, 0 to 850v, 0 to 1070v, 0 to 1280v adjustable. the polymer is highly inert, making it resistant to a variety of acids, bases, solvents, staining agents, and hydrolysis. increase generic relative thermal index for pei ( 746b) 6. ul standards for. tedlar® pvf films are made from polyvinyl fluoride homopolymer, with structure shown in figure 1. ul 746a 短期性能測試標準》 即提供「 配方變更 ( polymer variations) 」 的評估方式， 期透過對重要材料參數的抽測， 快速取得認證。 不過一旦配方變更幅度大於標準允收範圍， 測試流程則必須比照全新配方材料， 意即須.