We are planning on running cyanide-based, citrate buffered, electroplating bath on an intermittent basis for microlelectronics manufacturing. I understand that there may be a problem with bacteria, algae or other microbial contamination if the bath is left stagnant for extended lengths of time. Does anyone have suggestions as how to put the bath in a "standby mode" for several weeks at a time and prevent this from occurring? Thanks for any input. Glenn Pelkey [log in to unmask] [log in to unmask] Maxtek Components Corp. ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com ################################################################ TechNet E-Mail Forum provided as a free service by IPC using LISTSERV 1.8c ################################################################ To subscribe/unsubscribe, send a message to [log in to unmask] with following text in the body: To subscribe: SUBSCRIBE TechNet <your full name> To unsubscribe: SIGNOFF TechNet ################################################################ Please visit IPC's web site (http://www.ipc.org) "On-Line Services" section for additional information. For technical support contact Hugo Scaramuzza at [log in to unmask] or 847-509-9700 ext.312 ################################################################