Magnifying lens with scale, 8x 706296

In capillary GC it is important to inspect column integrity or check cut ends of capillaries. When closing a column by melting the magnifying lens can be used to check whether the column is really closed or whether an open channel has been formed in the sealed end. Our lens provides 8fold magnification and is supplied with a scale. The space between lines corresponds to 1/10 mm.