long conical type, dimensions: approx. 112/113 x 16/17 mm
made of borosilicate glass 3.3, straight rim
made of borosilicate glass 3.3, conical type
mainly used in microbiology to detect gas produced by micro organisms. These special tubes are placed upside down in bigger test tubes.
made of borosilicate glass 3.3, very good chemical resistance, minimal thermal expansion
made of high quality polystyrene, high optical transparency
made of wood with wire spring
bristles with tufted end made of wool, galvanised wire handle with loop to hang-up
made of high grade aluminium, with coloured anodized coating
makes the mixing of liquids in test tubes easy, with opto-electronic regulated motor, speed range infinitely adjustable from 100 to 2800 r.p.m.