Polarimeter

Manufactured from hardened stainless steel with dual reading in Imperial to 0.001in and in Metric to 0.02mm. The universal four-way measurement facility enables reading in External, Internal, Depth and Step modes.
The sliding thumb lock feature easily allows quick and precise measurements to be taken.
The satin finished scales and beam ensure fast, easy and accurate readings.
A strong plastic storage case provides a secure home for this precision instrument

Size 150mm / 6in

Gentian violet slightly stains the nuclei of the leucocytes. The blood specimen is diluted 1:20 in a WBC pipette with the diluting fluid and the cells are counted under low power of the microscope by using a counting chamber. The number of cells in undiluted blood is reported per cumm (µl) of whole blood.

Glass test tube, also known as culture tube and sample tube, is a common and widely used glassware, which has a finger-like length, open top and closed bottom. It can be made of soda-lime material, borosilicate glass or quartz glass. And borosilicate glass and quartz glass test tube can withstand high temperatures up to several hundred celsuis.