Introduction There is no single standard size for pharmaceutical bottles. Sizes depend on the product (oral liquid, drops, tablets, cream), the market and the dosing regime. For small liquid products dispensed with a dropper, a fairly consistent range of sizes is used. This article covers those sizes and what to consider when choosing one. Common…
Introduction A dropper pipette is a simple part, but it has to meet several requirements at once. The tip must be smooth, the length must suit the bottle, and the top must hold the teat securely. This article explains how glass pipettes for dropper bottles are generally made and how they are combined with a…
Droppers for chemistry are small tools for transferring and adding liquid in drops or small volumes. In a laboratory this usually means a Pasteur pipette with a rubber bulb, a plastic transfer pipette, or a dropper bottle that holds an indicator or reagent. They are used for convenience and speed, not for exact measurement. Common…
A dropper is used to measure out and dispense a liquid in small, controlled amounts, one drop at a time. It does this by combining a rubber or elastomer teat, which creates suction when squeezed, with a narrow glass or plastic pipette that holds the liquid until it is released. Droppers are used in cosmetics,…
Droppers come in sizes that match the bottle they fit, and for standard dropper bottles the key size is the DIN18 (GL18) thread. A DIN18 dropper fits DIN18 bottles of 5, 10, 15, 20, 30, 50 and 100 ml, while the glass pipette inside is cut to a length that suits the bottle height. Thread…
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