PCR (POLYMERASE CHAIN REACTION) TUBES AND MULTIWELL PLATES, USED IN THERMAL CYCLERS. THESE CYCLERS APPLY HOT AND COLD CYCLES TO TUBE/PLATES CONTENTS OVER VERY SHORT TIME SPANS, TYPICALLY 30 SECONDS AT TEMPERATURES FROM 0 TO 99 DEGREES CENTIGRADE. THIS RESULTS IN THE REPLICATION OF MOLECULAR BIOLOGICAL SAMPLES TO CREATE A USABLE QUANTITY FOR SUBSEQUENT RESEARCH. AN EXAMPLE OF THEIR USE WOULD BE DNA FINGERPRINTING. MADE OF PRECISION INJECTION MOULDED RESEARCH GRADE POLYPROPYLENE, TO FEATURE EXTREMELY UNIFORM WALL THICKNESSES. THE WALLS ARE REQUIRED TO BE OPTIMALLY THIN IN ORDER TO EVENLY DISTRIBUTE HEAT APPLIED TO THEM.

CLASSIFICATION HAS BEEN DETERMINED IN ACCORDANCE WITH THE FOLLOWING:- GENERAL INTERPRETATIVE RULES (GIR)S: GIR 1 HAS BEEN USED TO CLASSIFY THIS PRODUCT BY THE TERMS OF HEADING 8419 FOR MACHINERY, PLANT OR LABORATORY EQUIPMENT, WHETHER OR NOT ELECTRICALLY HEATED (EXCLUDING FURNACES, OVENS AND OTHER EQUIPMENT OF HEADING 8514), FOR THE TREATMENT OF MATERIALS BY A PROCESS INVOLVING A CHANGE OF TEMPERATURE SUCH AS HEATING, COOKING, ROASTING, DISTILLING, RECTIFYING, STERILISING, PASTEURISING, STEAMING, DRYING, EVAPORATING, VAPORISING, CONDENSING OR COOLING, OTHER THAN MACHINERY OR PLANT OF A KIND USED FOR DOMESTIC PURPOSES; INSTANTANEOUS OR STORAGE WATER HEATERS, NON-ELECTRIC GIR 6 HAS BEEN USED TO CLASSIFY THE GOODS TO SUBHEADING LEVEL 8419 90 FOR PARTS CN CODE 841990 85 FOR OTHER THAN OF STERILISERS OF SUBHEADING 8419 2000 TARIC 84199085 90 FOR OTHER THAN OF HEAT EXCHANGE UNITS, FOR USE IN CIVIL AIRCRAFT ALSO CLASSIFIED IN ACCORDANCE WITH:- NOTE 2(B) TI SECTION XVI HARMONISED SYSTEM EXPLANATORY NOTES (HSEN) TO HEADING 84.19