where OTR is the oxygen transmission rate, cc 02/day; A is the surface area of package, in.2; L is the thickness of package, mil; P is the oxygen permeability, (cc 02 • mil)/ (100 in.2 • day • atm); Pe is the partial oxygen pressure in external environment, atm; and P{ is the partial oxygen pressure in headspace, atm.

The shelf life (is) can be estimated using

Sleeping Sanctuary

Sleeping Sanctuary

Salvation For The Sleep Deprived The Ultimate Guide To Sleeping, Napping, Resting And  Restoring Your Energy. Of the many things that we do just instinctively and do not give much  of a thought to, sleep is probably the most prominent one. Most of us sleep only because we have to. We sleep because we cannot stay awake all 24 hours in the day.

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