Fellow tech-net readers: Does anybody know if the NASA soldering spec NHB5300.4(3A-2), dated 1992 is going to be revised ? In many different ways it is behind the times. One area of my concern is the limited number of solvents that can be used according to paragraph 3A312 of this document. Most of the materials listed are Ozone Depleting Chemicals, which are more or less banned. We're using isopropyl alcohol. Has anyone working to this spec gotten any different materials for cleaning flux, approved by NASA? Anyone out there using FluxoffCZ, from Chemtronics, for any applications? Please respond through the net or if you prefer, directly to me at [log in to unmask] Thanks, Bill Kasprzak Moog Inc. ################################################################ 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 ################################################################