The Ostwald–Folin pipette, made by Wilhelm Ostwald and refined by Otto Folin, can be a type of volumetric pipette utilized to evaluate viscous fluids including whole blood or serum.[seven][eight] Graduated glass https://sashamdmf959950.bloggactif.com/29395978/how-much-you-need-to-expect-you-ll-pay-for-a-good-types-of-pipette