Radgirl,
As I said, I know they are fine....I fly with them currently, however I have been asked by my management to provide some depressurisation evidence.
The manufacturers agree that the question is a good one, so it may generate something useful.
As a note the UK RAF have depressurisation tested Dansac ref:341, however these bags are ancient, and I have been unable to find anything out, off the RAF for anything more recent.
SKP