Hi Paul Part 20.3.1 of UL6500 states "Materials shall have properties as shown in Table VIII."
Table VIII gives a list of specific parts (items 1 - 10) and then item 11) gives a minimum requirement of "Materials used in applications other than those specified in items 1 - 10" as 94HB. There is an exemption for small parts though. 20.3.2 states "Small parts. The flammability and other requirements in Table VIII do not apply to small parts. For the purpose of these requirements, a small part is defined as one that complies with each of the following items: a) Its volume does not exceed 4 cubic centimetres b) Its maximum dimension does not exceed 6 centimetres c) Its location is such that it is not capable of propagating flame from one area to another or acting as a bridge between a possible source of ignition and other ignitable parts. Hope this helps. Regards Chris Colgan EMC & Safety TAG McLaren Audio Ltd mailto:[email protected] > -----Original Message----- > From: Paul Smith [SMTP:[email protected]] > Sent: 11 January 2000 15:51 > To: [email protected] > Subject: UL6500 > > > I don't hve a copy of this standard but hopefully somebody out there will > and might be able to help. > Can I presume that decorative parts of equipment enclosures tested to > UL6500 need to meet UL94 HB as a minimum or is there anything less > stringent? > I only ask as I'm sure somebody has told me in the past (can't find the > data anymore) that polymeric parts that don't form part of the enclosure > do not need to be UL approved in their own right for 6500. Is this right > or not? > > Thanks > > Paul > > > > Excite -- Control Yourself. > This E-mail brought to you by Excite's free E-mail service. > Get your own E-mail address at http://www.excite.co.uk > > --------- > This message is coming from the emc-pstc discussion list. > To cancel your subscription, send mail to [email protected] > with the single line: "unsubscribe emc-pstc" (without the > quotes). For help, send mail to [email protected], > [email protected], [email protected], or > [email protected] (the list administrators). > ===================================================== Authorised on 01/12/00 at 09:27:10; code 37f48bf35DD9C1E1. The contents of this E-mail are confidential and for the exclusive use of the intended recipient. If you receive this E-mail in error, please delete it from your system immediately and notify us either by E-mail, telephone or fax. You should not copy, forward or otherwise disclose the content of the E-mail. TAG McLaren Audio Ltd, The Summit, 11 Latham Road Huntingdon, Cambs, PE18 6ZU Telephone : 01480 415600 (+44 1480 415600) Facsimile : 01480 52159 (+44 1480 52159) --------- This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to [email protected] with the single line: "unsubscribe emc-pstc" (without the quotes). For help, send mail to [email protected], [email protected], [email protected], or [email protected] (the list administrators).
