A sister company of ours has just undergone an ESD audit by one of their customers. During the audit, they were cited for allowing non ESD chairs (i.e. no drag chains and/or conductive wheels/legs) in the manufacturing areas. I looked in IPC-A-610, in section 3.2 (ESD/EOS Safe Workstation) and find no reference to non-ESD chair use. Simply put, if a solder operator, assembler, etc. is seated in a non ESD chair, but wearing heel straps (on a dissipative floor) and is jumpered to a grounded jack via a wrist strap my take is that they are sufficiently grounded to perform their work. I have never had any external ESD audit fail for this reason. Anyone else have any experience with this type of call? I don't have a copy of ESD S2020 so I can't refer to it for help in this case. Thanks! Dale Ritzen, CQA Quality Manager Austin Manufacturing Services --------------------------------------------------- Technet Mail List provided as a service by IPC using LISTSERV 1.8e To unsubscribe, send a message to [log in to unmask] with following text in the BODY (NOT the subject field): SIGNOFF Technet To temporarily halt or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL) To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest Search the archives of previous posts at: http://listserv.ipc.org/archives Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815 -----------------------------------------------------