Use with standard or modified procedure

·         Precision-drawn glass and accurate calibrations ensure that results are accurate with standard normal values

·         Self-zeroing Wintrobe tubes (68F828SO) are filled by means of an aspirating bulb

·         Round-bottomed Wintrobe tubes (64FR828B-BLUE and 64FR-828-B) are filled with a 9” Pasteur pipet

·         Manufactured from 90 expansion soda lime glass conforming to USP Type III requirements