The reduction mixture recommended is upto 5% hydrogen and beyond that safety is of concern. We never used beyond 5% hydrogen and thus made no special safety arrengements except standard gas handling requirements, explosion proof cylinder chamber, fire extinguisher nearby. ashok > ---------- > From: [log in to unmask][SMTP:[log in to unmask]] > Sent: August 17, 1998 1:39 PM > To: [log in to unmask] > Subject: [TN] Hydrogen/Nitrogen saftey issues > > From: Dennis J Fall@TFT on 08/17/98 01:39 PM > > > To: [log in to unmask] > cc: > Subject: Hydrogen/Nitrogen saftey issues > > I am looking for some information regarding the safety of reflow ovens > using a 15% Hydrogen 85% Nitrogen atmosphere. If anyone has had > experience > using this concentration or something close to it, please let me know. > Maybe we can discuss any safety issues that may pertain to the > process. > > Thank You, > > Dennis Fall P: 507-625-8445 x17 > > Process Engineer F: 507-625-3523 > > Thin Film Technology Corporation mailto:[log in to unmask] > > 1980 Commerce Drive http://www.thin-film.com > > North Mankato, MN 56003-1702 > > ################################################################ > 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 > ################################################################ > ################################################################ 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 ################################################################