Personally, I would recommend rheology/viscosity control as part of general QC: there is quite a wide tolerance on incoming pastes and then it changes with age, as well. Malcom, in Japan, have a nice range of equipment specifically designed for solder pastes. Brian Grant Emandien wrote: > Hi All, > > We currently monitor temp/humidity of our SMT environment - would there be > added value by introducing viscosity checks? (we do not experience > viscosity-related defects) > > TIA > Gramt > > > ********************************************************************** > Relevant company disclaimers are available at the following addresses: > Tellumat (Pty) Ltd e-mail: mailto:[log in to unmask] > Syntell (Pty) Ltd e-mail: mailto:[log in to unmask] > Web: http://www.tellumat.com/email.aspx > ********************************************************************** > > --------------------------------------------------- > 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 847-509-9700 ext.5315 > ----------------------------------------------------- > > --------------------------------------------------- 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 847-509-9700 ext.5315 -----------------------------------------------------