Centrifuge Tube according to Goetz, pear-shaped, borosilicate glass 3.3

Centrifuge Tube according to Goetz, pear-shaped, borosilicate glass 3.3
Tube used for the determination of small quantities of solids in large volumes of liquids. Recommended for the determination of free water and sediment in diesel and other distillate fuels, as a pass-fail indication of product quality (ASTM D2709). Graduation and scale in durable black ceramic enamel. Glass conforming to USP Type I and ASTM E438, Type I, Class A requirements. Stopper is included.
Do not centrifuge with stopper in tube.