Urine tubes are made of virgin polystyrene and are free of any mold release agents, metals or additives that could contaminate samples.They are made of heavy wall construction, graduated at 1/4, 1/2, 1, 2 and every 2mL thereafter up to 12mL, and can be safely centrifuged at speeds up to 2000g.
The tubes are flared at the top to make filling and drip-free pouring easier.Designed to allow the use of midget urinometers and reagent test strips requiring only 1/4 or 1/2mL of sample.