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Thu, 11 Oct 2001 12:14:28 -0500 |
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Barry,
UL94 is interesting and was written as a test for plastic materials.
More to the point, IPC-4101, "Specification for Base Materials for
Rigid and Multilayer Printed Boards" addresses flammability in paragraph
3.10.2.1.
This mandates testing to IPC-TM-650, Method 2.3.10.
Here, the maximum average and individual burn times are mandated to be as
indicated on the applicable specification sheet.
Hope this helps.
Mike Simms
Trace Laboratories - Central
ph. 847 934 5300
fax 847 934 4600
-----Original Message-----
From: McGlaughlin, Jeffrey A [mailto:[log in to unmask]]
Sent: Thursday, October 11, 2001 10:10 AM
Subject: Re: PCB FLAME RATINGS
The 94V indicates the test methodology, the -0 will not sustain a flame
(zero minutes to self-extinguish), the -1 self-extinguishes in less than 1
minute...
Jeffrey A. McGlaughlin CID
Sr. Designer
Battelle Memorial Institute
Columbus Ohio
[log in to unmask]
-----Original Message-----
From: Barry Gallegos [mailto:[log in to unmask]]
Sent: Thursday, October 11, 2001 10:33 AM
To: [log in to unmask]
Subject: [TN] PCB FLAME RATINGS
Good morning Tech Net.
I have a question in regards to UL Flame ratings for PCB's. My incoming
inspectors have asked me what the difference is between 94V-0 and 94V-1.
any help is appreciated.
Thank you in advance.
Barry Gallegos
Process Engineer
Western Electronics
1550 South Tech Lane
Meridian, Idaho 83642
Phone: 208/955-9771
Fax: 208/955-9755
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