Hi Sanjay- Commercial grades of nitrogen have data sheets which lists the types and amounts of contaminates - water is included in that list. The more water you have in your nitrogen, the more water the plastic parts can absorb. The decision to use one grade of N2 over another grade will depend on how long you intend to leave the parts in storage and how moisture sensitive the parts will be. The same decision goes for buying or generating your own nitrogen - your usage rate will dictate which option is cheaper. Good Luck. Dave Hillman Rockwell Collins [log in to unmask] ______________________________ Reply Separator _________________________________ Subject: GEN: Nitrogen quality for storage cabinets... Author: [log in to unmask] at ccmgw1 Date: 12/16/96 12:19 PM Dear Technetters: This is a question directed to people who use storage cabinets hooked up to a nitrogen source to store moisture sensitive devices (or even boards). 1. I would like to know if any grade of Nitrogen (in purity) is ok for the above purpose. I am not actually sure about the different grades of nitrogen, but I am guessing that the cheapest one would be ok too. Is that correct? 2. Also, I would like to know, in your experience, which is cheaper - buying nitrogen or investing in nitrogen generator for the above purpose. I am sure that the usage and the quantity of nitrogen is the big factor in this, but still I would like to get your opinion.... Thank you ________________________________________________ Sanjay Rajan Harris RF Communications 1680 University Avenue Phone: (716) 242-3923 Rochester, NY 14610 Fax: (716) 242-3174 ________________________________________________ *************************************************************************** * TechNet mail list is provided as a service by IPC using SmartList v3.05 * *************************************************************************** * To unsubscribe from this list at any time, send a message to: * * [log in to unmask] with <subject: unsubscribe> and no text. * *************************************************************************** * If you are having a problem with the IPC TechNet forum please contact * * Dmitriy Sklyar at 847-509-9700 ext. 311 or email at [log in to unmask] * *************************************************************************** *************************************************************************** * TechNet mail list is provided as a service by IPC using SmartList v3.05 * *************************************************************************** * To unsubscribe from this list at any time, send a message to: * * [log in to unmask] with <subject: unsubscribe> and no text. * *************************************************************************** * If you are having a problem with the IPC TechNet forum please contact * * Dmitriy Sklyar at 847-509-9700 ext. 311 or email at [log in to unmask] * ***************************************************************************