Subject: | |
From: | |
Reply To: | |
Date: | Fri, 8 Mar 2013 11:35:05 -0500 |
Content-Type: | text/plain |
Parts/Attachments: |
|
|
Bob,
I have always considered them to be absolute. If relative - relative to
what?
Do the cardboard indicators provide a temp range for which they are valid?
Steve C
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Robert Kondner
Sent: Friday, March 08, 2013 11:24 AM
To: [log in to unmask]
Subject: [TN] Humidity Measurements: Relative or Absolute
Hi,
As I start looking at humidity measurement devices I started to wonder if
IPC humidity numbers are Relative or Absolute? Does anyone know off hand. I
need to go buy some specs.
I would have thought Absolute but the cardboard indicators are temperature
sensitive as are the desiccant drying systems in dry cabinets.
If the temperature is high, say > 100C then a part will "Bake Out"
regardless of the absolut humidity, is that right?
Bob K.
______________________________________________________________________
This email has been scanned by the Symantec Email Security.cloud service.
For more information please contact helpdesk at x2960 or [log in to unmask]
______________________________________________________________________
______________________________________________________________________
This email has been scanned by the Symantec Email Security.cloud service.
For more information please contact helpdesk at x2960 or [log in to unmask]
______________________________________________________________________
|
|
|