UL-94-BULLETINS-2003.pdf
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1、Subjects 746(746A, 746B, 746C, 746D, 94, 1694) (In reply, refer to Subject 746) 1285 Walt Whitman Road Melville New York 11747-0381 August 8, 2003 TO:Standards Technical Panel (STP) for Polymeric Materials Subscribers to ULs Standards Service for Polymeric Materials Short Term Property Evaluations,
2、UL 746A, Polymeric Materials Long Term Property Evaluations, UL 746B, Polymeric Materials Use in Electrical Equipment Evaluations, UL 746C, Polymeric Materials Fabricated Parts, UL 746D, Tests for Flammability of Plastic Materials, UL 94, and Tests for Flammability of Small Polymeric Component Mater
3、ials UL 1694 Other Interested Parties SUBJECT:Report of the Meeting of the Standards Technical Panel of UL for Polymeric Materials; Request for Comments on the Proposed Requirements for the Standards for Polymeric Materials - Short Term Property Evaluations, UL 746A; Polymeric Materials Use in Elect
4、rical Equipment Evaluations, UL 746C; Polymeric Materials - Fabricated Parts, UL 746D; Tests for Flammability of Plastic Materials for Parts in Devices and Appliances, UL 94; Tests for Flammability of Small Polymeric Component Materials, UL 1694; PROPOSED EFFECTIVE DATES The following topics were di
5、scussed at the meeting: SUMMARY OF TOPICS This bulletin contains descriptions of the outcome of the May 8, 2003 meeting of the 746 STP. This bulletin contains a wide assortment of proposals for UL 746A, UL 746C, UL 746D, UL 94, and UL 1694, with most of them being editorial in nature. A detailed lis
6、t of discussion topics is shown below. 1) Harmonization Activities in ASTM D.09 and D.20, IEC TC15, TC61 and TC89, and ISO TC61 2) Revision of Table 8.1 in UL 746A and 19.1 in UL 746B 3) Requirements for Reuse of Plastics - UL 746D 4) 42 Volt Automotive Battery Applications -,-,- 5) Minimum Thicknes
7、s Issues for RTIs - 746B and 746C 6) Density Variations 7) Clarifi cation of VTM Tests in UL 94 8) Clarifi cation of End-Product Flammability Tests in UL 746C 9) Guidelines for IR, TGA, and DSC Evaluations in UL 746A 10) Mandatory/Permissive Language in UL 94 11) Consideration of Revision Cycles 12)
8、 Consideration of Revision to Examples in Figure 8.1 of UL 746C 13) Alignment of Mechanical Property Tests in UL 746B and UL 746C 14) Editorial Revisions for UL 1694 15) Editorial Revisions for UL 746A 16) Editorial Revisions for UL 746C 17) Editorial Revisions for UL 746D 18) DMA as a Method For Ev
9、aluating Performance At Temperature 19) Additional Ratings on Plastics Recognition Cards 20) Creation of an Insulating Systems Database 21) Elimination of Categories PHDL2 and QMFZ8 22) Testing Required for Additional Manufacturing Locations 23) IQ Database for Plastics and Food Contact Plastics 24)
10、 Reminder that UL 746C Revisions Become Effective June 1, 2004 25) UL 94 Tests Not Applicable To Building Materials 26) Pre-Selection Tests For Use In Switch Evaluation Program 27) Restricted Substances A meeting of the Standards Technical Panel of UL for Plastic Materials was held on May 8, 2003, a
11、t the Rosen Centre Hotel in Orlando, Florida. The purpose of the meeting was to discuss topics of concern to the plastics industry as outlined in the summary of topics. AUGUST 8, 2003SUBJECT 746-2- -,-,- INSTRUCTIONS STP Members: If you are a voting member of the STP, complete the attached ballot in
12、 Appendix with your vote on the standard or proposals. Please note that all negative ballots must be accompanied by supporting written reasons and, where possible, proposals for a solution to the problem raised. Impact statements and effective date information are not subject to letter ballot. There
13、fore, comments regarding impact statements and effective dates may be made and should be sent to the STP Secretary separate from the letter ballot. Subscribers and other interested parties: If you are a subscriber or other interested party, you are requested to send comments on the proposed requirem
14、ents, impact statements, and proposed effective dates to the STP Secretary. The STP member ballot should not be used to submit your comments. Comments should be made in writing and may be sent by fax to (631) 439-6021 or by mail to the attention of Raymond M. Suga at ULs Melville office. Comments ma
15、y also be sent via E-mail to Raymond.M.S. Please reference all correspondence to Subject 746. Note all comments received are public and may be circulated to others. If you respond by fax or E-mail, please include your full name and company name and address to ensure a reply. STP BALLOTS AND ALL COMM
16、ENTS DUE: October 6, 2003 Proposed requirements are included in Appendix A and Appendix B of this meeting report for your review and comment. These include proposed requirements for UL UL 746A, UL 746C, UL 746D, Polymeric Materials - Molded Parts, UL 94, Tests for Flammability of Plastic Materials f
17、or Parts in Devices and Appliances, and UL 1694. Attached as Appendix C for your review and comment are the impact statements and proposed effective dates. Attached as Appendix D is the STP Roster. Attached as Appendix E are the STP ballot instructions and ballot. Attached as Appendix F is an Applic
18、ation to serve on the new Working Groups. Attached as Appendix G is a list of those who attended the meeting. Questions regarding interpretation of requirements should be directed to the responsible UL Staff. Please see Appendix H of this bulletin regarding designated responsibility for the subject
19、product categories. Please note that proposed requirements are of a tentative and early nature and are for review and comment only. Current requirements are to be used to judge a product until these requirements are published in fi nal form. * * * * * * The following report is not intended to be a v
20、erbatim transcript of the discussion at the meeting, but is intended to record the signifi cant features of those discussions. Unless specifi cally requested to do so, UL will not acknowledge comments indicating concurrence with these proposals. AUGUST 8, 2003SUBJECT 746-3- -,-,- UNDERWRITERS LABORA
21、TORIES INC. RAYMOND M. SUGA (Ext. 22593) Secretary for STP 796 Lead Engineering Associate Standards Department 1285 Walt Whitman Road, Melville, NY 11747 Phone: (631) 271-6200 Fax: (631) 439-6021 E-mail: Raymond.M.S http:/ REVIEWED BY: GEORGE J. FECHTMANN (Ext. 22858) Chair for STP 796 Underwriters
22、Laboratories Inc. 1285 Walt Whitman Road, Melville, NY 11747 Phone: (631) 271-6200 Fax: (631) 439-6048 E-mail: George.J.F Copyright 2003 Underwriters Laboratories Inc. SR:LS BUL-746.1-20030509 AUGUST 8, 2003SUBJECT 746-4- -,-,- APPENDIX A Report on Discussion Items at the 746 STP Meeting Some of the
23、 discussion items below contain proposals for UL 746A, UL 746C, UL 746D, UL 94, or UL 1694. These proposed requirements should be carefully reviewed. STP members should then complete the ballot that is attached as Appendix E. For your convenience in review, proposed additions to existing requirement
24、s are shown underlined and proposed deletions are shown lined-out. Proposed new requirements are identifi ed by (NEW). In the case of extensively revised paragraphs, the original text is identifi ed by (CURRENT) and is lined-out, followed by the proposed text identifi ed by (PROPOSED). A paragraph t
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