Sterile, cotton-plugged, bagged N-51A borosilicate glass; color-coded, graduated scale Designed from ASTM Standard E-714 Tolerances: 1 mL pipet, ±0.02 mL ; 2 mL pipet, ± 0.4 mL ; 5 mL pipet, ± 0.15 mL ; 10 mL pipet, ±0.30 mL Calibrated to tip, for blow-out, 7536S55 pipet is ungraduated below…

Sterile, cotton-plugged, individually wrapped Individually wrapped in resealable plastic bags Borosilicate glass Tolerances: 1/2 mL pipet,± 0.013 mL ; 1 mL pipet, ±0.02 mL ; 5 mL pipet, ± 0.15 mL ; 10 mL pipet, ±0.3 7536T48 pipets have black markings: remaining sizes have blue markings.

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…