. "FDA"^^ . "C91961"^^ . . "Device Material and Chemistry Evaluation Method"^^ . . "Device Material and Chemistry Evaluation Method"^^ . "Functional Concept"^^ . . "Testing devices for malfunctions that arise from problems with its components or materials or how its materials or components react to other elements either within the device or within the environment.FDA" . "C2984694"^^ . "MATERIALS AND CHEMISTRY EVALUATIONPTFDA3318" . "Device Material and Chemistry Evaluation MethodPTNCI" .