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Rubber bulb - Wikipedia
Practical physical chemistry . the other limb, B,so as to about half fill the bulb, andthe rest of this tube is then filled bymeans of a fine pipette with dilutesulphuric acid (
Pipette: Guide to Pipetting
Volumetric Pipette Bulb Made W/ Borosil, 100mL | Foxx Life Science – Foxx Life Sciences