Laboratory Pipettes: Types, Uses and Pipetting Workstation Planning

How to choose the right pipette for each volume and liquid, keep it accurate with calibration and good technique, and lay out benches, storage and safety cabinets so pipetting work is fast, comfortable and repeatable.

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Lab technician pipetting into sample tubes at a resin-top bench with a pipette stand and tip boxes within reach

8 types

Pipettes compared

ISO 8655

Piston pipette standard

0.1 µL+

Volumes covered

Free

Bench layout help

What Pipettes Do and Why the Bench Around Them Matters

A pipette measures and transfers a defined volume of liquid. In clinical, research, QC and teaching labs it is the most-used hand tool on the bench, so the choice of pipette — and the way it is stored, calibrated and used — shows up directly in the quality of results.

Most guides stop at the tool. Pipetting accuracy also depends on the workstation: bench height, reach to tips and tubes, a stable surface away from drafts, and enough clean, separated space for sterile or PCR work. MH-USA plans those benches, storage and safety cabinets as part of our laboratory design and installation work.

Gloved hand holding a single-channel adjustable micropipette with a disposable tip

Types of Laboratory Pipettes

Pipettes fall into two families: piston-operated pipettes (micropipettes) that use disposable tips for microliter-to-milliliter volumes, and glass or plastic graduated pipettes used with a bulb or pipette controller for larger volumes. Each type below has a job it does best.

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Air-displacement micropipettes

The everyday adjustable or fixed-volume pipette. An air cushion sits between the piston and the liquid, so accuracy is excellent for aqueous solutions from about 0.1 µL to 10 mL.

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Positive-displacement pipettes

The piston touches the liquid inside a capillary tip, with no air cushion. Best for viscous, volatile, dense or foaming liquids such as glycerol, solvents and whole blood.

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Multichannel pipettes

8, 12 or more channels dispense into microplate rows at once. Standard for 96- and 384-well ELISA, PCR setup and screening work.

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Electronic pipettes

Motor-driven pistons give consistent speed, multi-dispense and mixing programs and less thumb force — useful for repetitive work and staff with hand strain.

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Serological pipettes

Disposable graduated plastic pipettes, typically 1–50 mL, used with a pipette controller for cell culture media and reagent transfers.

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Volumetric pipettes

Glass pipettes with one calibration mark that deliver a single fixed volume with very high accuracy — the choice for preparing standards and titrations.

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Graduated (Mohr) pipettes

Glass pipettes with a scale for measuring variable volumes; less precise than volumetric pipettes but more flexible for analytical prep.

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Transfer pipettes

Single-piece plastic droppers for moving liquids where precise volume is not critical. Labs USA explains uses in its guide to disposable transfer pipettes.

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Glass micropipettes and capillaries

Fine glass capillaries for microscale work and microinjection, where tiny volumes are handled under a microscope.

Filter tips are not a pipette type — but they matter

Aerosol-barrier (filter) tips protect the pipette shaft from contamination and are standard for PCR, radioactive and infectious work. Plan tip storage for both filtered and standard tips at each station.

Pipette Comparison: Volume, Accuracy and Best Use

Typical ranges are shown; confirm the exact volume range and specification of the model you buy.

Pipette type	Typical volume range	Best for	Watch for
Air-displacement (single-channel)	0.1 µL – 10 mL	Aqueous buffers, reagents, samples	Errors with viscous or volatile liquids
Positive-displacement	1 µL – 10 mL	Viscous, volatile, dense, foaming liquids	Higher cost per capillary tip
Multichannel	0.5 µL – 1.2 mL per channel	Microplates, PCR setup, ELISA	Even tip sealing across channels
Electronic	0.2 µL – 10 mL	Repetitive dispensing, serial dilution	Battery charging and docking space
Serological	1 – 50 mL	Cell culture media, bulk transfers	Needs a pipette controller
Volumetric (glass)	Fixed, e.g. 1 – 100 mL	Standards, titrations	One volume per pipette; cleaning
Graduated / Mohr (glass)	0.1 – 25 mL	Variable analytical measurements	Reading the meniscus correctly
Transfer (plastic)	Approximate, ~1 – 5 mL	Non-critical transfers	Not for quantitative work

How to Choose the Right Pipette

Start with the liquid and the volume, then the throughput. A pipette performs best in the upper part of its range, so pick the smallest model that covers the volume you dispense most often rather than one large pipette for everything.

High-volume plate work justifies multichannel or electronic pipettes; analytical standards still call for glass volumetric pipettes; difficult liquids call for positive displacement. Most labs end up with a matched set of three to five adjustable pipettes per user plus shared specialty tools.

Pipette selection checklist

Volume you dispense most often — and whether it sits in the top half of the pipette’s range.
Liquid type: aqueous, viscous, volatile, dense, foaming or infectious.
Throughput: single tubes, racks or 96/384-well plates.
Accuracy required by your method or accreditation body.
Manual vs electronic, considering daily repetitions and staff ergonomics.
Tip fit and supply: universal or brand-specific tips, filter tips, low-retention tips.
Autoclavable parts and chemical resistance for decontamination.
Calibration support and service turnaround.

Electronic micropipette with a digital display and disposable tip

Manual or electronic?

Manual pipettes are simple, affordable and need no charging. Electronic pipettes repeat the same aspiration and dispense speed every time, store programs for multi-dispensing and serial dilution, and reduce thumb force — a real benefit for staff who pipette for hours. If you choose electronic models, plan a charging stand and an outlet at each workstation rather than a shared charger across the room.

Pipetting Technique That Protects Accuracy

Most pipetting error comes from technique, not the tool. A few habits make the biggest difference:

Pre-wet the tip two or three times before aspirating, especially with volatile liquids.
Hold the pipette near vertical while aspirating and immerse the tip only a few millimetres.
Use a smooth, consistent plunger rhythm and pause briefly after aspiration.
Use reverse pipetting for viscous or foaming liquids.
Let pipettes and liquids reach room temperature before critical work.

Scientist pipetting cell cultures inside a Class II biological safety cabinet

Technique	When to use it	How it works
Forward pipetting	Aqueous solutions, buffers, most reagents	Press to the first stop, aspirate, dispense to the second stop to blow out
Reverse pipetting	Viscous, foaming or very small volumes	Press to the second stop, aspirate, dispense to the first stop only
Repetitive pipetting	Dispensing the same volume many times	Aspirate once, dispense aliquots to the first stop
Pre-wetting	Volatile liquids and critical volumes	Aspirate and dispense two or three times before the measured stroke

Sterile and PCR work belongs in the right enclosure

Cell culture and infectious samples are pipetted inside a biological safety cabinet; PCR setup is often done in a PCR workstation or dedicated clean area. Labs USA compares the two in PCR hood vs biosafety cabinet.

Pipette Calibration and Maintenance

Technician checking pipette accuracy gravimetrically on an analytical balance on a stone balance table

Piston pipettes are specified and tested to ISO 8655. Most labs verify them with a gravimetric check: dispense water onto an analytical balance, convert mass to volume, and compare accuracy and precision with the limits for that volume.

Many labs calibrate every 6 to 12 months and run quick in-house checks more often; regulated and high-use labs may calibrate quarterly. Your method, accrediting body and pipette usage set the interval. A gravimetric check needs a quiet, draft-free spot with a stable balance table — something to plan into the room.

Interval	Typical pipette care
Each day / each use	Inspect for cracks and leaks; check the tip seals; wipe the shaft; store upright
Weekly	Clean and decontaminate the exterior; quick leak or volume check on critical pipettes
Monthly / quarterly	Gravimetric performance check for high-use pipettes; replace worn seals and O-rings
Every 6–12 months	Full calibration to ISO 8655 or your quality system; record results and labels
After damage or repair	Remove from use, recalibrate and document before returning to service

Planning a Pipetting Workstation: Bench, Storage and Layout

This is where MH-USA comes in. Pipetting is repetitive fine-motor work, often for hours, so the bench and storage around it drive both comfort and error rates. These are the points we work through when designing benches for pipetting-heavy labs.

Bench height and seating

Seated pipetting is usually done at a sitting-height bench of about 29–30 in., standing work at about 36 in. Adjustable-height benches let each user set the surface so the elbow stays close to the body and the wrist stays straight. Pair them with lab chairs that have adjustable height and a footrest.

See lab benches and workstations and our guide to ergonomics in lab design.

Seated technician pipetting at an adjustable-height laboratory bench with an ergonomic lab chair

Adjustable micropipettes stored upright in a carousel stand next to pipette tip racks on a lab bench

Storage within reach

Keep pipettes upright in a stand or carousel so liquid can’t run into the shaft, and keep tips, tubes and plates inside the easy reach zone in front of the user. Plan shelf space for tip boxes and refills, a drawer for filter tips and spare parts, and a waste container for used tips on the dominant-hand side.

Reagent shelving above the bench and a mobile cart for bulk tip cases keep the work surface clear.

Pipetting workstation layout checklist

Adjustable-height or correct-height bench for seated or standing work.
Stable, chemical-resistant work surface away from doors, hood faces and supply diffusers.
Pipette stand or carousel at each station; tips, tubes and plates in the easy reach zone.
Tip waste and biohazard containers on the dominant-hand side.
Outlets for electronic pipette chargers and benchtop centrifuges or vortex mixers.
Separate pre-PCR and post-PCR areas, with dedicated pipettes for each.
Biosafety cabinets in low-traffic positions with clearance for the user’s chair.
A quiet balance table for gravimetric pipette checks.
Task lighting without glare on tube racks and plates.

Plan ahead: Write pipetting stations into the floor plan early. The laboratory equipment checklist lists the space and utility needs of the instruments that usually share these benches.

Pipetting Needs by Type of Lab

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Clinical and hospital labs

Adjustable pipettes for manual assays, serological pipettes for prep, and analyzer workstations nearby; see hospital lab equipment.

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Molecular and PCR labs

Dedicated pipette sets and filter tips for pre- and post-PCR rooms, multichannel pipettes and PCR workstations.

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Microbiology and cell culture

Serological pipettes and controllers inside biosafety cabinets, plus incubators and shakers nearby.

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QC and manufacturing labs

Volumetric glassware for standards, positive-displacement pipettes for viscous samples, documented calibration.

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Teaching labs

Durable fixed-volume and adjustable pipettes, clear storage at each student station, easy-clean surfaces.

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Testing labs

Electronic pipettes for high-throughput extraction and dilution, with records that support ISO/IEC 17025.

How MH-USA Helps You Build Better Pipetting Benches

MH-USA designs, supplies and installs laboratory furniture, casework, shelving and safety equipment. For pipetting-heavy labs that means benches at the right height, storage that keeps tips and pipettes in reach, and a layout that separates sterile, PCR and general work. For lab equipment and consumables, our laboratory division Labs USA can help.

Workflow review

Tell us the assays, users and throughput; we map where pipetting happens.

Bench layout

We draw benches, storage, safety cabinets and equipment on your floor plan.

Specify & quote

Furniture, casework, shelving and carts quoted with lead times.

Install

We deliver, install and coordinate with your trades.

Setting up a new lab or reworking pipetting stations?

Send your floor plan and workflow. We’ll return a bench layout and a quote.

Request a Quote Try the Lab Layout Configurator Call (800) 326-4403

Pipette FAQs

What are the main types of pipettes?

The main types are air-displacement micropipettes, positive-displacement pipettes, multichannel pipettes, electronic pipettes, serological pipettes, volumetric pipettes, graduated (Mohr) pipettes and plastic transfer pipettes. Micropipettes handle microliter volumes; serological, volumetric and graduated pipettes handle milliliters.

What is the difference between a volumetric pipette and a micropipette?

A volumetric pipette is a glass pipette that delivers one fixed volume with very high accuracy. A micropipette is a piston-operated pipette, often adjustable, that measures small and variable volumes using disposable tips.

How often should pipettes be calibrated?

Many labs calibrate every 6 to 12 months and run in-house checks more often. High-use and regulated labs may calibrate quarterly. Your test method, quality system and accrediting body set the required interval; ISO 8655 defines how piston pipettes are tested.

When should I use a positive-displacement pipette?

Use positive displacement for viscous, volatile, dense or foaming liquids, such as glycerol, organic solvents or whole blood, where the air cushion in a standard pipette would cause errors.

How should pipettes be stored?

Store pipettes upright in a stand or carousel so liquid cannot run into the shaft, in a clean, dry spot close to where they are used. Never lay a pipette down with liquid in the tip.

What bench height is best for pipetting?

Seated pipetting is usually done at about 29 to 30 inches and standing work at about 36 inches. Adjustable-height benches let each user keep elbows close to the body and wrists straight, which reduces strain during long sessions.

What should I inspect before using a pipette?

Check for cracks, damage and leaks, make sure the tip seals properly, confirm the volume setting and calibration status, and remove any pipette that fails from service until it is repaired and recalibrated.

Does MH-USA design and install pipetting workstations?

Yes. MH-USA designs, supplies and installs lab benches, casework, shelving and safety equipment, including adjustable-height pipetting stations and storage. Some common sizes are in stock at select manufacturers, subject to confirmation.

Plan Pipetting Benches That Work as Hard as Your Team

Send your floor plan and workflow. We’ll design the benches, storage and layout, quote it and install it.

Request a Quote Call (800) 326-4403