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Rotameters are suitable for low flow measurement.
An inexpensive version for general lab applications
Eliminates need for dangerous and expensive hydrogen gas cylinders
For replacing original nuts that have been damaged or misplaced
Reduce the possibility of damaging the protective coating on columns; design makes it easy to hang columns in most gas chromatography ovens
Eliminates need for expensive gas cylinders
Increases column performance by making the properly sized, squarely-cut ferrule to seal capillary column ends
For a permanent record of important chromatographic data