Poly Bags for Medical and Healthcare Applications Training.

Elkay's Poly Bag Training Modules are designed to quickly provide information regarding the use of poly bags in various professional applications.

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Healthcare Poly Bag Training
Glossary


O

Opacity
A term to indicate the hiding power of pigmented (mostly white) plastic films. It is beneficial for packing materials sensitive to light (visible or ultraviolet).

OTR (Oxygen transmission rate)
OTR of plastic materials varies considerably with humidity; therefore it needs to be specified. Standard conditions of testing are 0, 60 or 100% relative humidity. Units are cc.100 square inches/24 hours, (or cc/square meter/24 Hrs.) (cc = cubic centimeters)