I recorded this test for a forum I'm on to test cheapo Chinese flash paper.
Flash paper is basically paper that has been submerged in a nitrating solution (nasty stuff) and then thoroughly washed. It should be shipped and stored wet to preserve it and keep it in a safe state. Once dried it can be ignited and disappears almost completely with a bright yellow flash.
This stuff was shipped dry (naughty!) and burned slower than it should.
John Rehwinkel
2017-11-06 17:42:28 +0000 UTCMichael Thompson
2017-11-05 11:13:53 +0000 UTCPhil Maddox
2017-11-05 04:23:29 +0000 UTCBig Clive
2017-11-05 03:10:59 +0000 UTCVaughn B.
2017-11-05 00:46:03 +0000 UTC