Disposable microcentrifuge tube, PP, 0.5 ml, colourless, with lid

can be centrifuged up to 10 000 RCF at 20 °C, max. 20 min. according to DIN EN 285, outer diameter x height: 7.9 x 31.4 mm, the lid membrane (Ø 8.5 mm) has an even thickness (approx. 0.3 mm) so that the analyzer can easy puncture, the wall thickness shows no incorrect differences, the lid closes thightly and does not move but is yet easy to open, no flashes, air bubbles, streaks etc., matted writing field and graduation for approximate reading of the volume