Spare part to be placed between the desiccator glass lid with screw connection and the plastic knob with hole. Once the washer is in place, put the glass stopcock on the knob and when the knob is screwed down, the washer is strangled, thus guaranteeing that there are no vacuum leaks.
Uniformity of Dosage Units
Allschoolabs
Uniformity of Dosage Units is a specialised analytical laboratory service that assesses whether individual dosage units contain sufficiently consis...



































