Charles, we have used dry nitrogen (boil off from a large liquid tank)to
blow off PWB's, PWA's, etc. for about 15 years and it works very well. We,
however, limit the pressure to about 25 to 35 psi to prevent damage to small
delicate parts. The really good part is that it is more contaminate free
than anything else you will find.
Ron Dieselberg
BAE SYSTEMS
Cincinnati Electronics Corp.

-----Original Message-----
From: [log in to unmask] [mailto:[log in to unmask]]
Sent: Monday, August 28, 2000 10:41
To: [log in to unmask]
Subject: [TN] Another ESD question


How do you folks feel about using compressed nitrogen to dry printed circuit
boards? One of our customers will not allow aqueous cleaning of their
hardware.
As a result we clean all of their hardware in alcohol and dry by blowing it
off
with compressed nitrogen with the regulator at about 100 PSI. The nozzle is
grounded at the tip. Please note that this is not related to my earlier
quetion
as this is done in a different area and only used on our space flight
hardware.
Thanks again,
Charles Caswell

##############################################################
TechNet Mail List 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 web site (http://www.ipc.org/html/forum.htm) for additional
information.
If you need assistance - contact Keach Sasamori at [log in to unmask] or
847-509-9700 ext.5315
##############################################################

##############################################################
TechNet Mail List 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 web site (http://www.ipc.org/html/forum.htm) for additional
information.
If you need assistance - contact Keach Sasamori at [log in to unmask] or
847-509-9700 ext.5315
##############################################################