Caplugs® Evergreen
3.5 mL Test Tubes, Graduated, LDPE, Natural — 222-1585-02I | 500/Bag | Caplugs® Evergreen
3.5 mL Test Tubes, Graduated, LDPE, Natural — 222-1585-02I | 500/Bag | Caplugs® Evergreen
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Quick Reference
| Part Number | 222-1585-02I |
|---|---|
| Capacity | 3.5 mL |
| Tip Type | Blood Bank |
| Tip Detail | blood bank-optimized tip geometry for even, reproducible drop delivery in tube serology |
| Drop Size | ~40 µL |
| Material | Low-Density Polyethylene (LDPE) |
| Color | Natural |
| Sterility | Sterile — individually sterile-packed |
| Pack Size | 500/Bag |
| Key Use | blood bank serology: ABO/Rh typing, antibody screening, crossmatch, and elution procedures |
| Origin | Made in USA |
| Price | $75.97/Bag ($0.1520/pipet) |
Technical Narrative
The Caplugs® Evergreen 222-1585-02I is a 3.5 mL Blood Bank Transfer Pipet, sterile, LDPE (Natural), 500/Bag individually packed. The blood bank format features tip geometry optimized for blood bank tube serology — ABO/Rh typing, antibody screening, indirect antiglobulin testing (IAT/Coombs), and compatibility crossmatch testing using the tube method. The optimized tip produces controlled 40 µL drops for consistent reagent delivery to test tube panels, where drop size variability directly affects read sensitivity and specificity in agglutination interpretation.
Low-Density Polyethylene (LDPE): the defining material for transfer pipets — LDPE's flexibility provides progressive, controllable bulb compression for smooth aspirate and dispense with one hand. LDPE's low extractable profile is suited for direct contact with serum, plasma, whole blood, and biological reagents. Sterile individually packed, no autoclaving required. BPA-free, phthalate-free, FDA-compliant,
Procurement economics: $75.97/Bag, $0.1520/pipet. Full 222-15xx transfer pipet series: Standard (222-1577-02I, 45 µL, 500/Bag); Graduated (222-1580-02I, 40 µL, 500/Bag); Blood Bank (, 40 µL, 500/Bag); Fine Tip (222-1590-02I, 20 µL, 400/Bag); Long Stem (222-1595-02I, 40 µL, 400/Bag). LabSupplies.com ships from USA inventory, typically same business day.
Technical Specifications
| Part Number | |
|---|---|
| Caplugs Item # | |
| Capacity | 3.5 mL |
| Tip Type | Blood Bank |
| Tip Detail | blood bank-optimized tip geometry for even, reproducible drop delivery in tube serology |
| Drop Size | ~40 µL per drop |
| Material | Low-Density Polyethylene (LDPE) |
| Color | Natural |
| Sterility | Sterile — individually sterile-packed |
| Pack Size | 500/Bag (3.5 mL blood bank transfer pipet, sterile, LDPE, 500/Bag) |
| Primary Application | blood bank serology: ABO/Rh typing, antibody screening, crossmatch, and elution procedures |
| BPA / Phthalate | BPA-Free, Phthalate-Free, Latex-Free |
| Country of Origin | USA |
| Price | $75.97/Bag ($0.1520/pipet) |
3.5 mL Blood Bank Transfer Pipet Applications
The is suited to the following laboratory workflows where the blood bank tip geometry provides the key advantage.
| Application | Setting / Protocol | Notes |
|---|---|---|
| ABO/Rh typing | Tube method, forward and reverse grouping | 40 µL controlled drop; blood bank tip geometry |
| Antibody screening (IAT) | LISS or PEG enhancement, IAT panel | Consistent drop for serum:cell ratio in tube IAT |
| Compatibility crossmatch | Immediate spin, incubation, AHG crossmatch | Sterile single-use for each patient-donor combination |
| Elution procedures | Elute antibody from sensitized RBCs | Fine transfer for eluate recovery |
| Direct antiglobulin test | DAT panel, polyspecific/monospecific AHG | Controlled drop delivery for anti-IgG, anti-C3d phases |
| Reagent red cell dispensing | Antibody ID panel setup | Transfer from reagent red cell vials to test tubes |
| Plasma fractionation | Plasma protein isolation | LDPE: low extractables for plasma-contact |
Chemical Resistance — Low-Density Polyethylene (LDPE)
Compatibility reference for LDPE at typical laboratory conditions.
| Reagent / Condition | Compatibility | Notes |
|---|---|---|
| Aqueous buffers / saline | Excellent | LDPE inert across pH 4–12; standard biological reagents. |
| Serum / plasma / whole blood | Excellent | Standard biological matrix; low extractables for direct blood contact. |
| Ethanol (<70%) | Good | Short-term compatible for tissue dehydration steps. |
| Methanol (<50%) | Good | Short-term compatible. |
| Acetonitrile | Limited | Avoid prolonged LDPE contact; use LDPE for aqueous protocols. |
| Dichloromethane / chloroform | Not Compatible | Causes swelling; do not use. |
| LISS / PEG enhancement media | Excellent | Compatible with standard blood bank enhancement media. |
| AHG (anti-human globulin) reagent | Excellent | Compatible with standard blood bank AHG reagents. |
Clinical & Research Laboratory Applications
Caplugs® Evergreen 3.5 mL blood bank transfer pipets serve hospital blood banks, transfusion medicine services, and reference immunohematology laboratories performing tube method serology. The blood bank tip geometry is optimized for even, reproducible drop delivery in ABO/Rh typing, direct and indirect antiglobulin testing (DAT/IAT), antibody identification panel reading, and compatibility crossmatch procedures. The ~40 µL drop volume is calibrated to the serum:cell ratios specified in standard blood bank tube method protocols (AABB Technical Manual, manufacturer reagent IFU), where over-delivery or under-delivery of a single drop shifts the effective serum:cell ratio enough to affect agglutination strength. At 500/Bag sterile individually packed, this format provides the single-use contamination control required for patient-specific blood bank testing.
U.S. Manufacturing, Quality & Institutional Procurement
Caplugs® Evergreen products are manufactured in the United States under ISO 9001 quality management from FDA-compliant, food-contact-grade resins. BPA-free, phthalate-free, and latex-free, with material-disclosure documentation supporting CAP, CLIA, and ISO 15189 laboratory accreditation audits.
LabSupplies.com is an authorized dealer for the full Caplugs Evergreen catalog and ships directly from USA inventory — typically same business day for stocking SKUs. We offer below retail pricing on volume orders, tiered institutional and academic pricing, and direct support for grant-funded laboratories and government procurement channels. Lab managers and procurement officers can request a written quote or speak with a product specialist directly from our sales engineering team.
Frequently Asked Questions
Are the transfer pipets sterile?
Yes. Each pipet is individually sterile-packed. Sterility is maintained until the individual wrapper is opened. Single-use — discard after use.
What makes the Blood Bank transfer pipet different from the standard format?
The blood bank pipet tip geometry is optimized for controlled, consistent drop delivery in tube serology assays where drop-size reproducibility affects agglutination interpretation. The tip produces a more uniform drop at the ~40 µL target versus a standard taper tip, which can vary more with technique. Use the blood bank format for all tube-method blood group serology and compatibility testing.
Can LDPE transfer pipets be used with organic solvents?
LDPE is compatible with dilute aqueous reagents, serum, plasma, and standard biological matrices. Short-term contact with ethanol (<70%) or methanol (<50%) is generally acceptable. LDPE is not suitable for acetonitrile, acetone, dichloromethane, chloroform, or concentrated organic solvents — use glass or PTFE instruments for organic solvent transfer.
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