| http://www.w3.org/ns/prov#value | - There are three in vivo tests involved in the classification of plastics: the Systemic Injection and the Intracutaneous tests are designed to determine the systemic and local biological responses to plastics and other polymers by a single dose injection of specific extracts prepared from a sample, while the third test, the Implantation test, is designed to evaluate the reaction of living tissue to
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