3.5 mL Graduated LDPE Transfer Pipets — Natural, 40 µL/Drop, 500/Bag (230-1580-020)
These 3.5 mL graduated transfer pipets from Caplugs® Evergreen are manufactured from flexible low-density polyethylene (LDPE) and supplied non-sterile in bulk packs of 500 for high-throughput clinical and research workflows. Printed volume graduation markings along the pipet body provide a quick visual volume check during specimen transfer or reagent dispensing, while the 40 µL per-drop calibration supports semi-quantitative liquid delivery without additional measuring equipment. The natural (clear) color and LDPE construction allow easy visual inspection of the sample and ensure low retention with complete expulsion of viscous or aqueous specimens.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number (MPN) | 230-1580-020 |
| Volume | 3.5 mL |
| Transfer Pipet Type | Graduated |
| Drop Size | 40 µL/drop |
| Graduation Markings | Yes — printed on pipet body |
| Material | Low-Density Polyethylene (LDPE) |
| Color | Natural (Clear) |
| Sterility | Non-Sterile |
| Pack Size | 500/Bag |
| BPA / Phthalate Free | Yes |
| Country of Origin | USA |
Applications
- Clinical urinalysis: specimen aliquoting and reagent addition with on-pipet volume confirmation
- Clinical chemistry and sample processing: serum, plasma, whole blood, CSF, and urine transfer
- Microbiology and hematology: specimen dispensing where 40 µL drop-size delivery is useful
- Serial dilutions and sample preparation: LDPE flexibility ensures complete sample expulsion and minimal carry-over
- Reagent dispensing in high-workload labs: 500/Bag bulk format reduces restocking frequency on busy benches
- General liquid handling: any workflow where approximate volume confirmation at the point of transfer adds quality assurance value
Chemical Resistance
| Reagent / Condition | Compatibility |
|---|---|
| Aqueous buffers / saline | Excellent |
| Dilute acids | Excellent |
| Dilute bases | Excellent |
| Methanol | Good |
| Isopropanol | Good |
| Acetonitrile | Good |
| Aromatic / chlorinated solvents | Limited — verify before use |
Quality & Procurement
Made in USA, these Caplugs® Evergreen transfer pipets are produced from BPA-free, phthalate-free LDPE resin, supporting lot traceability requirements common in CAP- and CLIA-accredited laboratories as well as ISO 15189-compliant environments. LabSupplies.com is an authorized dealer and ships from USA inventory, with tiered pricing available for high-volume institutional and grant-funded accounts.
Frequently Asked Questions
Are these transfer pipets sterile?
No — the 230-1580-020 pipets are supplied non-sterile. They are intended for general specimen transfer, reagent dispensing, and sample preparation workflows where sterility is not a requirement. If your application requires sterile transfer pipets, please contact us for alternative options.
How accurate are the printed graduation markings?
The graduation markings provide a semi-quantitative visual volume reference directly on the pipet body — useful as a secondary check during transfer. They are not intended to replace calibrated micropipettors where precise volumetric accuracy is required.
What types of specimens are compatible with LDPE construction?
LDPE is broadly compatible with common clinical specimens including urine, serum, plasma, whole blood, and CSF, as well as standard aqueous buffers, dilute acids, dilute bases, and common alcohols such as methanol and isopropanol. Use with aromatic or chlorinated solvents should be verified before routine adoption.
Can these pipets be used in high-volume clinical lab settings?
Yes — the 500/Bag bulk format is specifically suited to high-workload environments such as clinical chemistry, urinalysis, and sample processing labs where large quantities of single-use transfer pipets are consumed daily. Tiered quantity pricing is available through LabSupplies.com for institutional purchasers.