3.5 mL Blood Bank Transfer Pipets — LDPE, Natural, 40 µL Drop Size (230-1585-020)
These 3.5 mL low-density polyethylene (LDPE) transfer pipets are designed for blood bank, transfusion medicine, and immunohematology workflows requiring reliable, low-retention specimen transfer. Supplied non-sterile in bulk (500/Bag), each pipet delivers a calibrated 40 µL drop size for semi-quantitative reagent dispensing in blood typing, crossmatch, antibody screen, and direct antiglobulin test (DAT) procedures. The inherent flexibility of LDPE allows complete sample expulsion and minimal residual volume, reducing waste and improving result consistency.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number (MPN) | 230-1585-020 |
| Volume Capacity | 3.5 mL |
| Transfer Pipet Type | Blood Bank |
| Drop Size | 40 µL/drop |
| Graduations | None |
| Material | Low-Density Polyethylene (LDPE) |
| Color | Natural (Clear) |
| Sterility | Non-Sterile |
| Pack Size | 500/Bag |
| BPA / Phthalate Free | Yes |
| Country of Origin | USA |
Applications
- ABO blood typing, crossmatch, antibody screen, and direct antiglobulin test (DAT) procedures in transfusion medicine labs
- Blood bank serology tile and tube test methods requiring consistent 40 µL drop delivery
- Serum, plasma, and whole blood specimen transfer with minimal hemolysis risk during aspiration and expulsion
- Blood bank reagent dispensing and sample processing in CAP-accredited and AABB-compliant laboratories
- General clinical laboratory liquid handling — urinalysis, chemistry, microbiology, and hematology specimen transfer
- High-volume bulk supply for institutions requiring lot-traceable consumable documentation in transfusion medicine quality management systems
Chemical Resistance
| Reagent / Condition | Compatibility |
|---|---|
| Aqueous buffers / saline / clinical specimens | Excellent |
| Dilute acids | Good |
| Dilute bases | Good |
| Methanol | Good |
| Isopropanol | Good |
| Acetonitrile | Good |
| Aromatic / chlorinated solvents | Not recommended — 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 for CAP-accredited and AABB-compliant transfusion medicine quality systems. LabSupplies.com is an authorized Caplugs® Evergreen dealer shipping from USA inventory, with bulk and institutional pricing available for high-volume clinical and research accounts.
Frequently Asked Questions
Are these transfer pipets sterile?
No — part number 230-1585-020 is supplied non-sterile. For applications requiring sterile single-use pipets, please contact us to confirm whether a sterile variant is available.
What does the 40 µL drop size mean in practice?
Each squeeze of the bulb delivers approximately 40 µL per drop, providing a reliable semi-quantitative volume reference for blood bank tile and tube test methods — such as ABO typing and antibody screen — where consistent drop delivery is critical to result interpretation.
Why is LDPE preferred over other plastics for blood bank transfer pipets?
LDPE's inherent softness and flexibility allow technicians to fully expel samples with gentle pressure, minimizing residual volume and reducing the risk of carry-over contamination. It also has broad compatibility with aqueous clinical specimens and common blood bank reagents.
Are these pipets suitable for lot traceability documentation in a CAP or AABB quality system?
Yes — bulk bag packaging includes lot identification, and the 500/Bag format supports high-throughput documentation workflows. Procurement managers should retain bag labels or request certificate of conformance records through LabSupplies.com as needed for quality management files.