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These stands are used globally in molecular biology
2800-288 Whatman HP Cellulose Extraction Thimbles
1822-125-Whatman Microfiber Filter Glass Circle
Readout : 3 ½ digit LCD
Polygraph (NU-239C) These stands are used globallyPolygraph (NU 239C) A unique system of pen motors, Modular easily interchangeable in a minute or two. Pen length standard 120mm for ink writing system improving upon the international standard (100mm) as per Grass or BECKMAN A shorter pen length would mean greater arc distortions which are synonymous with waveform distortion and arc distortion. Pen length below 100min is not internationally accepted, Frequency Response: with 120min ink pen length 70Hz
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