Laboratory & Chemical
Glass Pasteur pipettes in 150 mm and 230 mm lengths, used with rubber bulbs for fast, non-quantitative liquid transfer at the lab bench.
Specification
Product Knowledge
Background, typical uses and selection points for this product. We can send model drawings, technical data and samples to support your evaluation.
Named after Louis Pasteur, the Pasteur pipette is a simple drawn-glass tube with a fine capillary tip, used with a rubber bulb to draw up and dispense small volumes drop by drop. It is the everyday transfer tool of the bench: low-cost, disposable and quick wherever exact volume doesn’t matter.
It is deliberately non-quantitative. For accurate volumes, labs use a graduated or volumetric pipette; for adding a reagent or transferring a culture, the Pasteur pipette is faster.
Pasteur pipettes are used for general liquid transfer and dosing, reagent addition, sample handling, staining and topping up tubes. Cell-culture and microbiology labs use cotton-plugged versions; clinical and diagnostic labs use them for sample work; teaching labs buy them in bulk for student practicals. They also serve as filling tools for small vials and as a disposable alternative wherever cross-contamination between samples must be avoided.
Each pipette is a slim glass tube drawn down to a long, fine tip, in soda-lime glass for economy or borosilicate for higher chemical and thermal resistance. The two standard lengths are 150 mm and 230 mm; the longer size reaches into tall tubes and bottles. A latex or nitrile bulb provides suction. Cotton-plugged versions keep liquid out of the bulb, and individually wrapped versions are available for clean-handling work.
Fit a clean bulb, squeeze before dipping the tip, then release slowly to draw liquid in. Dispense by gentle pressure, drop by drop if needed. Don’t rely on Pasteur pipettes for measured volumes. The fine tip chips easily, so handle it with care, and dispose of used pipettes as glass sharps, or as biohazard or chemical waste where they are contaminated.
We draw the pipettes from glass tubing on automated equipment, cut them to length, fire-polish the top end and, where specified, insert cotton plugs. Tip consistency and freedom from cracks are the main checks for a high-volume consumable. Options include soda-lime or borosilicate glass, plain or plugged, bulk or wrapped packing, sterilized versions with documentation on request, and bulbs in several materials. Ask us for samples of both lengths.
Customization
We specify the container, closure, decoration and transit packing as one package, so every part fits and arrives ready for your filling line.
Choose from standard sizes or request a custom capacity. We supply drawings with tolerances, label panel dimensions and nominal and brimful capacity.
We match caps, liners, pumps, droppers and stoppers to the neck finish and check the seal against your contents and filling process.
Flint, amber and colored glass, with frosting, spray coating, screen printing, hot stamping or labels. Material documentation is available on request.
Partitioned cartons, layer pads or bulk pallets, with shipping marks and pallet patterns planned for your route and warehouse.
Applications
Typical markets and uses. Tell us your contents, filling process and storage conditions and we will recommend the right model and components.
We confirm availability of the standard model, and review any changes to size, color, decoration or tooling for feasibility and lead time.
We send samples and specification sheets so you can check dimensions, component fit and finish before you place the order.
Your quotation covers packing design, shipping route, Incoterms and export documents, so landed cost is clear from the start.
Bulk Quote
Tell us the quantity, specifications and destination. We will reply with pricing, lead time, sample options and technical data for your chosen model.