| http://www.w3.org/ns/prov#value | - When a liquid impervious layer is not used in the make up of the base drape 12, the exposed outer layer of the base drape 12 can made of hydrophobic fibers, or treated to be liquid repelling, so that blood or other body fluids present during surgery do not absorb into the base drape 12 and migrate through the material into contact with the patient's body.
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