TECHNET Archives

March 2011

TechNet@IPC.ORG

Options: Use Monospaced Font
Show Text Part by Default
Show All Mail Headers

Message: [<< First] [< Prev] [Next >] [Last >>]
Topic: [<< First] [< Prev] [Next >] [Last >>]
Author: [<< First] [< Prev] [Next >] [Last >>]

Print Reply
Subject:
From:
Karen Tellefsen <[log in to unmask]>
Reply To:
TechNet E-Mail Forum <[log in to unmask]>, Karen Tellefsen <[log in to unmask]>
Date:
Thu, 17 Mar 2011 12:16:54 -0400
Content-Type:
text/plain
Parts/Attachments:
text/plain (99 lines)
Gas chromatography.

http://www.chem.agilent.com/Library/applications/5988-9260EN.pdf

Once upon a time I worked on H2 darkening of optical fibers, and I analyzed
H2 with gas chromatograph.

Karen Tellefsen - Electrical Testing
[log in to unmask]
908-791-3069



                                                                            
                                                                            
                                                                            
   [TN] Hydrogen gas analysis                                               
                                                                            
                                                                            
   Douglas Pauls                                                            
                 to:                                                        
                    TechNet                                                 
                                                        03/17/2011 11:09 AM 
                                                                            
                                                                            
                                                                            
                                                                            
   Sent by:                                                                 
          TechNet <[log in to unmask]>                                         
   Please respond to TechNet E-Mail Forum, dopauls                          
                                                                            
                                                                            
                                                                            






Good morning all,

I am posting this question for a colleague (not Hillman).

Take a look at this picture which Steve has graciously posted on his web
page.

http://stevezeva.homestead.com/Bowed_Electrolytic.jpg

This is an electrolytic capacitor and I don't have any access to the
processing history.  Presumably it went through reflow.  My colleague
would like to determine if there is hydrogen in this swelled device and if
so, what percentage.  There is presumably both liquid and gas inside the
swelled area which would complicate any standard residual gas analysis.
Hydrogen is too light for GCMS detection.

OK all you chemists, how would hydrogen presence and concentration be
determined here? And do you know of any commercial labs which would
perform that service?

Doug Pauls
Rockwell Collins

______________________________________________________________________
This email has been scanned by the MessageLabs Email Security System.
For more information please contact helpdesk at x2960 or [log in to unmask]
______________________________________________________________________

---------------------------------------------------
Technet Mail List provided as a service by IPC using LISTSERV 15.0
To unsubscribe, send a message to [log in to unmask] with following text in
the BODY (NOT the subject field): SIGNOFF Technet
To temporarily halt or (re-start) delivery of Technet send e-mail to
[log in to unmask]: SET Technet NOMAIL or (MAIL)
To receive ONE mailing per day of all the posts: send e-mail to
[log in to unmask]: SET Technet Digest
Search the archives of previous posts at: http://listserv.ipc.org/archives
Please visit IPC web site
http://www.ipc.org/ContentPage.aspx?Pageid=E-mail-Forums for additional
information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100
ext.2815
-----------------------------------------------------



______________________________________________________________________
This email has been scanned by the MessageLabs Email Security System.
For more information please contact helpdesk at x2960 or [log in to unmask] 
______________________________________________________________________

---------------------------------------------------
Technet Mail List provided as a service by IPC using LISTSERV 15.0
To unsubscribe, send a message to [log in to unmask] with following text in
the BODY (NOT the subject field): SIGNOFF Technet
To temporarily halt or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL)
To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest
Search the archives of previous posts at: http://listserv.ipc.org/archives
Please visit IPC web site http://www.ipc.org/ContentPage.aspx?Pageid=E-mail-Forums for additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815
-----------------------------------------------------

ATOM RSS1 RSS2