CELLTREAT® 229205B 5mL Serological Pipet, Extended Length, Individually Wrapped, Paper/Plastic, Sterile — 200/Case

Product Description

The CELLTREAT® 229205B is a 5mL extended-length serological pipet individually wrapped in a paper/plastic wrapper and packed in bags — sterile, color-coded blue, and manufactured to the ASTM Standard Specification for Serological Pipets E-934. Bi-directional (positive and negative) graduations are printed in bold easy-to-read ink, and color-coded stripes and packaging enable quick volume identification. Each pipet features a premium material barrier plug. Sold in cases of 200, packed in bags of 50.

ASTM E-934 Manufactured — Meets the Standard for Serological Pipets All serological pipets are manufactured to the ASTM Standard Specification for Serological Pipets E-934. ASTM E-934 defines the dimensional, volumetric accuracy, and performance standards for serological pipets — ensuring consistent, reliable volume delivery that meets the expectations of quality-controlled laboratory environments, cell culture labs, and regulated research settings. Compliance with this standard is particularly important in labs that must demonstrate instrument and consumable qualification for GMP or GLP work.

Extended Length Format — Greater Reach Into Deep Vessels The 229205B is the extended-length version of the standard 5mL CELLTREAT serological pipet (229005B). The extended length provides greater reach into deep vessels including large media bottles, Erlenmeyer flasks, and deep reservoir containers — making it the preferred format for cell culture labs that routinely aspirate media from large-volume containers or need additional clearance when working in a biosafety cabinet. The extended length also increases the working distance from the pipet controller, reducing the risk of accidental contamination of the controller during use.

229005B vs. 229205B — Choosing the Right Format:

Bi-Directional Graduations — Positive and Negative Volume Delivery The 229205B features bi-directional (positive and negative) graduation markings printed in bold, easy-to-read ink — allowing the pipet to be read from either end of the scale. Positive graduations support standard delivery from full to empty, while negative graduations allow the user to confirm the volume remaining in the pipet during use. This dual-direction graduation system is standard in all CELLTREAT serological pipets and supports accurate liquid handling across all common serological pipetting techniques.

Premium Material Barrier Plug — Aerosol and Contamination Protection Each 229205B pipet includes a premium material barrier plug that prevents liquid from being aspirated into the pipet controller during use — protecting the controller from contamination and preventing cross-contamination between samples. The plug material is selected for compatibility with aqueous laboratory media, buffers, cell culture reagents, and other common biological solutions.

Color-Coded Blue — Instant 5mL Visual Identification The 229205B is color-coded blue throughout — the pipet stripe, the wrapper, and the packaging all carry the same blue color code that is universally associated with the 5mL serological pipet format. In busy cell culture labs where multiple pipet volumes are in simultaneous use, the blue color coding allows instant visual identification of the correct volume without reading the label.

Individually Wrapped — Sterile Packaging for Single-Use Applications Each pipet is individually wrapped in a paper/plastic wrapper and packed in resealable bags of 50 — maintaining sterility until the moment of use while keeping the remaining pipets in the bag clean and organized. The paper/plastic wrapper format is the most widely used serological pipet packaging in cell culture labs worldwide and is compatible with all standard biosafety cabinet and clean bench workflows.

USP Class VI Polystyrene — RNase-Free and DNase-Free CELLTREAT serological pipets are manufactured from USP Class VI medical grade virgin polystyrene and are certified RNase-free and DNase-free — meeting the material purity standards required for molecular biology, RNA work, and sensitive cell culture applications where nuclease contamination from the pipet material would be unacceptable.

Complete CELLTREAT® 5mL Serological Pipet Family:

Key Features

• 5mL extended-length serological pipet
• Manufactured to ASTM Standard Specification E-934
• Individually wrapped in paper/plastic wrapper
• Packed in bags of 50 — 200 per case
• Bi-directional (positive and negative) graduations in bold easy-to-read ink
• Premium material barrier plug — aerosol and contamination protection
• Color-coded blue — universal 5mL identification
• USP Class VI medical grade virgin polystyrene
• RNase-free and DNase-free
• Sterile — gamma irradiation
• Extended length for deep vessel access and BSC compatibility

Supported Applications Cell culture media addition and aspiration, reagent transfer and dilution, serological pipetting in biosafety cabinets, molecular biology liquid handling, microbiology assays, tissue culture, deep vessel media transfer from large bottles and Erlenmeyer flasks, and any laboratory application requiring a sterile 5mL individually wrapped serological pipet with extended reach.

Technical Specifications