9 PHYSICAL, CHEMICAL AND ELECTRONIC ANALYZERS, NAMELY, PHOTOMETERS, FLAME PHOTOMETERS AND ANALYZERS WITH ION-SENSITIVE MODES OF OPERATION; LABORATORY UNITS FOR DISPENSING, TRANSFERS, INCUBATION, MIXING AND DILUTION OF LIQUIDS; LABORATORY CONSUMABLE EQUIPMENT, NAMELY, PLASTIC CUVETTES, SAMPLE SUPPLY VESSELS AND SYRINGE-LIKE LABORATORY PARTS FOR PIPETTING UNITS AS WELL AS UNITS FOR SAMPLE SPLITTING, SAMPLE LABELLING AND SAMPLE IDENTIFICATION, TEST-TUBE TRANSPORT UNITS FOR TEST-TUBE CHAINS, ROTOR AND RACK UNITS