Calibrated for no blow-out

·         Specially designed rubber washer is supplied with each pipet and is used to support the pipet in the neck of the test bottle

·         Grooves on the outer surface of the washer allow air displaced by incoming milk to escape freely

·         Scale is permanent brown stain

·         Designed from ASTM Specification E1043, Type II B requirements

·         Manufactured from 33 expansion, low extractable borosilicate glass conforming to USP Type I and ASTM E-438, Type I, Class A requirements