This is copied from the title page. IEEE Std 315-1975 (Reaffirmed 1993) ANSI Y32.2-1975 (Reaffirmed 1989) CSA Z99-1975 All are the same document, and still I see more variations and made-up reference designators. I guess the people who need to read it do not have a copy. What works, works. --------------------------------------------------------------------------------- DesignerCouncil Mail List provided as a free service by IPC using LISTSERV 1.8d To unsubscribe, send a message to [log in to unmask] with following text in the BODY (NOT the subject field): SIGNOFF DesignerCouncil. To set a vacation stop for delivery of DesignerCouncil send: SET DesignerCouncil NOMAIL Search previous postings at: www.ipc.org > On-Line Resources & Databases > E-mail Archives Please visit IPC web site (http://www.ipc.org/html/forum.htm) for additional information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315 ---------------------------------------------------------------------------------