So I take it from the responses so far that no-one has carried out any testing to determine the length of time they are able to leave electronic assemblies in solvent strip tanks? Leaving an assembly in for 'the shortest possible time' is ok in theory but it isn't a specification for operators to work by. Does this mean that we are all relying on manufacturing operatives to make their own decisions on how long to leave assemblies in for (do they have the training to make decisions like that)? Regards Michael Kipping --------------------------------------------------------------------------------- Technet 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 Technet To temporarily halt delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest 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 ---------------------------------------------------------------------------------