| http://www.w3.org/ns/prov#value | - Each of the outer chamber 30 and the housing 88 preferably may be molded in one piece from a transparent material such as polymethlymethacrylate, polycarbonate, polysulfone, PVC, medium to high density polyethylene or other transparent or semi-transparent high modulus polymers which are heat resistant, chemically inert, and preferably capable of withstanding sterilization conditions.
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