Standard cotton-plug type, but plug is not supplied. N-51A glass. Designed from ASTM E1044, Style II requirements. Pipets are calibrated to tip; with volume adjusted for blowing out the last drop. Designated by a ground band near the top. Sizes 5 mL and larger are constricted to retain plug, but…

Pipet, Color-Coded With Fused Scale Made from uniform-bore N51A tubing Designed from ASTM Specification E 1293, Style 1, Class B requirements Graduated between points above Safe-Gard tempered tip 50 mL size is not color-coded; calibrated to deliver Tolerances: 1/10 mL…