Labware Products

Serological Pipettes

Serological pipettes are precision laboratory tools for accurate liquid transfer in analytical and biological workflows. Made of high-grade polystyrene, they offer clear observation and reduced liquid attachment, ensuring reliable volume delivery. Available in 1 mL to 50 mL sizes with graduations accurate to less than 2% at full volume. Each pipette includes a filter plug to prevent overfill and is supplied either sterile or nonsterile, with color-coded rings for quick size identification.

High-grade polystyrene construction provides clear visibility and minimizes liquid residue on the inner surface
Graduation inaccuracy under 2% at full volume ensures reliable volume delivery across all sizes
Color-coded rings and packaging allow rapid identification of size without reading labels
Integrated filter plug prevents overfill during aspiration, reducing contamination risk

Key Benefits

What This Product Gives You

High-grade polystyrene construction provides clear visibility and minimizes liquid residue on the inner surface
Graduation inaccuracy under 2% at full volume ensures reliable volume delivery across all sizes
Color-coded rings and packaging allow rapid identification of size without reading labels
Integrated filter plug prevents overfill during aspiration, reducing contamination risk
Available in sterile and nonsterile packaging to suit both controlled and routine lab environments

Made of high-grade polystyrene for clarity and low liquid adhesion
Volume range from 1 mL to 50 mL with graduation accuracy under 2% at full volume
Filter plug included to prevent overfill during aspiration
Color-coded rings for immediate size identification
Sterile or nonsterile packaging options available
Non-pyrogenic, non-cytotoxic, and non-hemolytic properties confirmed

Where It Is Used

Applications And Buyers

Application Scenarios

Transferring cell culture media and reagents in life-science laboratories
Measuring and dispensing samples in pharmaceutical QC and R&D
Handling environmental and food testing samples requiring precise volume transfer
Preparing dilutions in chemical and biochemical assays where accuracy matters
Using in high-throughput workflows where quick visual identification of pipette size reduces errors

Who It Is For

Pharmaceutical and biotechnology laboratories requiring accurate, consistent liquid handling
Environmental and food testing labs processing large volumes of samples with varying viscosities
Academic and contract research labs needing reliable, low-cost pipetting tools
Laboratory distributors sourcing standardized, well-packaged labware with clear size identification
OEM partners requiring private-label labware with consistent performance and packaging

Problems It Solves

Liquid residue on pipette walls leading to inaccurate volume delivery in low-volume transfers
Misidentification of pipette size during fast workflows, causing method deviations
Overfilling during aspiration due to lack of internal protection, risking contamination
Inconsistent sterility in non-sterile packaging when used in sensitive biological applications
Lack of visual cues for size or sterility status in high-volume lab environments

Data

Specifications

Material	High-grade polystyrene
Volume Range	1 mL, 2 mL, 5 mL, 10 mL, 25 mL, 50 mL
Graduation Accuracy	Inaccuracy < 2% at full volume
Filter Plug	Included on all pipettes
Sterility	Available in sterile and nonsterile packaging
Color Coding	Rings on pipette body for size identification
Packaging	50 pcs/bag, 10 bags/box (1-10 mL); 50 pcs/bag, 8 bags/box (25 mL); 25 pcs/bag, 4 bags/box (50 mL)
Packing Quantity	3000 pcs (1-10 mL), 1500 pcs (5 mL), 1200 pcs (10 mL), 600 pcs (25 mL), 300 pcs (50 mL)

Materials

High-grade polystyrene for clarity and reduced liquid adhesion
Filter plug made of inert material to prevent contamination

Customization Options

OEM private-label packaging available through the Microlab OEM division
Custom packaging configurations possible for bulk orders
Private-label printing on packaging and labels available
Custom color coding or labeling options for internal lab use

How It Is Made

Manufacturing And Quality Control

Manufacturing Process

Application of color-coded rings for size identification
Insertion of filter plug during final assembly
Sterile or nonsterile packaging based on order
Final inspection and packing in bulk quantities as specified

Quality Control

Visual inspection of pipette body for defects and uniform wall thickness
Verification of graduation accuracy against full volume tolerance
Check of filter plug integrity and correct placement
Confirmation of color coding matches the specified size
Validation of packaging configuration and quantity per order

Comparison

Compared With The Alternatives

Versus Glass serological pipettes

Polystyrene pipettes are single-use, eliminate cleaning and carry-over risk, and are lighter and less prone to breakage

Versus Standard plastic pipettes without filter plugs

The integrated filter plug prevents overfill and contamination during aspiration, especially important in biological and sterile workflows

Versus Pipettes with no color coding

Color-coded rings allow faster identification in high-throughput labs, reducing the chance of using the wrong size

Versus Reusable pipette tips

Single-use serological pipettes eliminate cross-contamination and cleaning validation burden

Use Guide

How To Use It

Select the correct size based on the volume to be transferred
Use the color-coded ring to confirm size before use
Insert the filter plug before aspiration to prevent overfill
Aspirate slowly and steadily to avoid air bubbles and splashing
Discard after single use to prevent carry-over and contamination
Store in a clean, dry area away from direct sunlight to prevent degradation

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FAQ

Questions Buyers Ask

What is the graduation accuracy of these pipettes?

Graduation inaccuracy is less than 2% at full volume for all sizes.

Are these pipettes sterile?

Yes, sterile versions are available with the 'S' suffix in the part number. Nonsterile versions are available with the 'N' suffix.

Do they come with a filter plug?

Yes, every pipette includes a filter plug to prevent overfill during aspiration.

How are they packaged?

50 pieces per bag, with 10 bags per box for 1-10 mL sizes; 50 per bag, 8 per box for 25 mL; 25 per bag, 4 per box for 50 mL.

Can I get these under my own brand?

Yes, the Microlab OEM division offers private-label packaging, printing, and custom configurations.

Are they safe for biological samples?

Yes, they are non-pyrogenic, non-cytotoxic, and non-hemolytic, making them suitable for cell culture and sensitive assays.