Maybe I should have saved this for a Friday question, but here goes.
This is a general question regarding ignition sources and exposure time.
In reviewing the flammability (UL 94) tests and the hot wire ignition
(UL 746) tests, it seems 30 seconds is the magic number for igniting
the sample
In message
cabyvtvny1rjvr5g8moofwhm43wpbooszi0yrefkimxx6dvg...@mail.gmail.com,
dated Wed, 15 Aug 2012, Doug Powell doug...@gmail.com writes:
For example the UL 94 test is a 30 second exposure to a 50W flame.
Would a 15 second 100W flame be equivalent?
Sometimes, sometimes not. It depends on what
John,
Your point is well taken.
As a child, I recall running my fingers through a candle flame. If
you move fast enough, you do not absorb feel the heat of the flame.
So it seems to me that the true definition of ignition would be
something like a cirmstance where a source of ignition is
In message
cabyvtvpognmxg2gsa+zsmpmnncirfwzn+x9yaqwxvotonj6...@mail.gmail.com,
dated Wed, 15 Aug 2012, Doug Powell doug...@gmail.com writes:
In the end, I suppose my question could be phrased, Aside from the
rapid and devastating mechanical effects of an explosion, is it
possible or even
From: Doug Powell [mailto:doug...@gmail.com]
Sent: Wednesday, August 15, 2012 12:20
John,
Your point is well taken.
As a child, I recall running my fingers through a
candle flame. If
you move fast enough, you do not absorb feel the heat
of the flame.
In a similar vein to this, Rich
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