The Thoma RBC pipette is a glass diluting pipette essential for manual red blood cell counts using a hemocytometer, providing precise 1:200 blood-to-diluent ratio for accurate hematology analysis.
Dilution Ratio: 1:200 (erythrocytes); markings at 0.5, 1, and 101 for exact blood (up to 1) and diluent filling.
Design: Bulb with red bead for mixing, stem graduated into 10 parts, tolerance ±3%; supplied with mouthpiece and latex tubing.
Material: Borosilicate glass, DIN 12750 compliant, white backing with blue graduations.
Draw blood to mark "1", fill bulb with diluent (e.g., Dacie's fluid) to "101", mix via red bead—ideal for low-resource labs performing manual WBC/RBC differential counts reliably