PCR TUBES AND PLATES: PRECISION MOULDED IN REASEARCH GRADE POLYPROPYLENE TO FEATURE EXTREMELY UNIFORM WALL THICKNESS. WALLS ARE REQUIRED TO BE OPTIMALLY THIN IN ORDER TO EVENLY DISTRIBUTE HEAT APPLIED TO THEM BY INSTRUMENTS KNOWN AS THERMAL CYCLERS. THESE CYCLERS REPEATEDLY HEAT AND COOL TUBE / PLATE CONTENTS OVER VERY SHORT TIME SPANS TYPICALLY 30 SECONDS 55-99 DEGREES C.

GIRs 1 & 6 TEXT TO CODES 3917 & 3917 22 90 90 HESNs TO HEADING 3917