CHEMICAL AND PROCESS CONTROL APPARATUS AND PERTINENT CONTROL AND REGULATION SYSTEMS PERTAINING THERETO NAMELY, INDUSTRIAL FILTERS FOR LIQUID/SOLID SEPARATION AND OPERATION CONTROL UNITS THEREFOR; STERILE CONTAINERS FOR MIXING, INOCULATION, FERMENTATION, FOR CONTAINING SPECIMENS AND FOR PRESERVATION, TRANSPORT, TRANSFER AND SAMPLING OF STERILE SOLUTIONS OR SUSPENSIONS; AND COVERS, IMMERSION TUBES, AGITATORS, PENETRATING NEEDLES, TRANSPORT UNITS, SUSPENSION UNITS, HIGH-PRESSURE CLEANING MACHINE...