{"product_id":"222-1580-02i-transfer-pipet-graduated","title":"3.5 mL Caps, Graduated, LDPE, Natural — 222-1580-02I | 500\/Bag | Caplugs® Evergreen","description":"\u003ch2\u003eQuick Reference\u003c\/h2\u003e \u003ctable\u003e \u003ctbody\u003e \u003ctr\u003e \u003cth\u003ePart Number\u003c\/th\u003e \u003ctd\u003e222-1580-02I\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eCapacity\u003c\/th\u003e \u003ctd\u003e3.5 mL\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eTip Type\u003c\/th\u003e \u003ctd\u003eGraduated\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eTip Detail\u003c\/th\u003e \u003ctd\u003estandard taper tip with printed graduation marks on bulb and\/or stem for volume reading\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eDrop Size\u003c\/th\u003e \u003ctd\u003e~40 µL\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eMaterial\u003c\/th\u003e \u003ctd\u003eLow-Density Polyethylene (LDPE)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eColor\u003c\/th\u003e \u003ctd\u003eNatural\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eSterility\u003c\/th\u003e \u003ctd\u003eSterile — individually sterile-packed\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003ePack Size\u003c\/th\u003e \u003ctd\u003e500\/Bag\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eKey Use\u003c\/th\u003e \u003ctd\u003evolume-read transfer where approximate volume delivery (0.5 mL increments) must be verified without a separate measuring vessel\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eOrigin\u003c\/th\u003e \u003ctd\u003eMade in USA\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003ePrice\u003c\/th\u003e \u003ctd\u003e$102.13\/Bag ($0.2043\/pipet)\u003c\/td\u003e \u003c\/tr\u003e \u003c\/tbody\u003e \u003c\/table\u003e \u003ch2\u003eTechnical Narrative\u003c\/h2\u003e \u003cp\u003eThe Caplugs® Evergreen \u003cstrong\u003e222-1580-02I\u003c\/strong\u003e is a \u003cstrong\u003e3.5 mL Graduated Transfer Pipet\u003c\/strong\u003e, sterile, LDPE (Natural), 500\/Bag individually packed. The graduated pipet adds printed volume marks on the bulb and\/or stem body — allowing the analyst to read approximate volumes (typically in 0.5 mL increments) delivered without a separate measuring vessel. In blood banking and serology, the graduated format allows rapid dispensing of a specific plasma or serum volume to a tube panel without pipetting to a volumetric device first.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eLow-Density Polyethylene (LDPE)\u003c\/strong\u003e: 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, \u003c\/p\u003e \u003cp\u003eProcurement economics: \u003cstrong\u003e$102.13\/Bag\u003c\/strong\u003e, \u003cstrong\u003e$0.2043\/pipet\u003c\/strong\u003e. Full 222-15xx transfer pipet series: Standard (222-1577-02I, 45 µL, 500\/Bag); Graduated (, 40 µL, 500\/Bag); Blood Bank (222-1585-02I, 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.\u003c\/p\u003e \u003ch2\u003eTechnical Specifications\u003c\/h2\u003e \u003ctable\u003e \u003ctbody\u003e \u003ctr\u003e \u003cth\u003ePart Number\u003c\/th\u003e \u003ctd\u003e\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eCaplugs Item #\u003c\/th\u003e \u003ctd\u003e\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eCapacity\u003c\/th\u003e \u003ctd\u003e3.5 mL\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eTip Type\u003c\/th\u003e \u003ctd\u003eGraduated\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eTip Detail\u003c\/th\u003e \u003ctd\u003estandard taper tip with printed graduation marks on bulb and\/or stem for volume reading\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eDrop Size\u003c\/th\u003e \u003ctd\u003e~40 µL per drop\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eMaterial\u003c\/th\u003e \u003ctd\u003eLow-Density Polyethylene (LDPE)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eColor\u003c\/th\u003e \u003ctd\u003eNatural\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eSterility\u003c\/th\u003e \u003ctd\u003eSterile — individually sterile-packed\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003ePack Size\u003c\/th\u003e \u003ctd\u003e500\/Bag (3.5 mL graduated transfer pipet, sterile, LDPE, 500\/Bag)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003ePrimary Application\u003c\/th\u003e \u003ctd\u003evolume-read transfer where approximate volume delivery (0.5 mL increments) must be verified without a separate measuring vessel\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eBPA \/ Phthalate\u003c\/th\u003e \u003ctd\u003eBPA-Free, Phthalate-Free, Latex-Free\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eCountry of Origin\u003c\/th\u003e \u003ctd\u003eUSA \u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003ePrice\u003c\/th\u003e \u003ctd\u003e$102.13\/Bag ($0.2043\/pipet)\u003c\/td\u003e \u003c\/tr\u003e \u003c\/tbody\u003e \u003c\/table\u003e \u003ch2\u003e3.5 mL Graduated Transfer Pipet Applications\u003c\/h2\u003e \u003cp\u003eThe is suited to the following laboratory workflows where the graduated tip geometry provides the key advantage.\u003c\/p\u003e \u003ctable\u003e \u003cthead\u003e\u003ctr\u003e \u003cth\u003eApplication\u003c\/th\u003e \u003cth\u003eSetting \/ Protocol\u003c\/th\u003e \u003cth\u003eNotes\u003c\/th\u003e \u003c\/tr\u003e\u003c\/thead\u003e \u003ctbody\u003e \u003ctr\u003e \u003cth\u003eBlood bank plasma volume\u003c\/th\u003e \u003ctd\u003ePlasma volume delivery to tube panel\u003c\/td\u003e \u003ctd\u003eRead volume on bulb\/stem before dispensing\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eSerology reagent dispensing\u003c\/th\u003e \u003ctd\u003eAntibody screening, crossmatch setup\u003c\/td\u003e \u003ctd\u003e40 µL drop; graduated marks for dose verification\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eManual ELISA setup\u003c\/th\u003e \u003ctd\u003eAntigen or antibody coating at known vol\u003c\/td\u003e \u003ctd\u003eApproximate volume delivery without volumetric pipette\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eMicrobiology broth dilutions\u003c\/th\u003e \u003ctd\u003eSerial dilution in tubes\u003c\/td\u003e \u003ctd\u003eVolume marks for approximate transfer volumes\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eClinical point-of-care\u003c\/th\u003e \u003ctd\u003eManual test kit setup\u003c\/td\u003e \u003ctd\u003eSterile individually packed; volume-read without additional vessel\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eQuality control sample prep\u003c\/th\u003e \u003ctd\u003eKnown-volume sample addition to QC panel\u003c\/td\u003e \u003ctd\u003eGraduated marks reduce need for separate pipette in manual workflows\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eTeaching \/ student lab\u003c\/th\u003e \u003ctd\u003eVolume estimation exercises\u003c\/td\u003e \u003ctd\u003eCalibrated marks for educational volume reading\u003c\/td\u003e \u003c\/tr\u003e \u003c\/tbody\u003e \u003c\/table\u003e \u003ch2\u003eChemical Resistance — Low-Density Polyethylene (LDPE)\u003c\/h2\u003e \u003cp\u003eCompatibility reference for LDPE at typical laboratory conditions.\u003c\/p\u003e \u003ctable\u003e \u003cthead\u003e\u003ctr\u003e \u003cth\u003eReagent \/ Condition\u003c\/th\u003e \u003cth\u003eCompatibility\u003c\/th\u003e \u003cth\u003eNotes\u003c\/th\u003e \u003c\/tr\u003e\u003c\/thead\u003e \u003ctbody\u003e \u003ctr\u003e \u003ctd\u003eAqueous buffers \/ saline\u003c\/td\u003e \u003ctd\u003eExcellent\u003c\/td\u003e \u003ctd\u003eLDPE inert across pH 4–12; standard biological reagents.\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eSerum \/ plasma \/ whole blood\u003c\/td\u003e \u003ctd\u003eExcellent\u003c\/td\u003e \u003ctd\u003eStandard biological matrix; low extractables for direct blood contact.\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eEthanol (\u0026lt;70%)\u003c\/td\u003e \u003ctd\u003eGood\u003c\/td\u003e \u003ctd\u003eShort-term compatible for tissue dehydration steps.\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eMethanol (\u0026lt;50%)\u003c\/td\u003e \u003ctd\u003eGood\u003c\/td\u003e \u003ctd\u003eShort-term compatible.\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eAcetonitrile\u003c\/td\u003e \u003ctd\u003eLimited\u003c\/td\u003e \u003ctd\u003eAvoid prolonged LDPE contact; use LDPE for aqueous protocols.\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eDichloromethane \/ chloroform\u003c\/td\u003e \u003ctd\u003eNot Compatible\u003c\/td\u003e \u003ctd\u003eCauses swelling; do not use.\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eLISS \/ PEG enhancement media\u003c\/td\u003e \u003ctd\u003eExcellent\u003c\/td\u003e \u003ctd\u003eCompatible with standard blood bank enhancement media.\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eAHG (anti-human globulin) reagent\u003c\/td\u003e \u003ctd\u003eExcellent\u003c\/td\u003e \u003ctd\u003eCompatible with standard blood bank AHG reagents.\u003c\/td\u003e \u003c\/tr\u003e \u003c\/tbody\u003e \u003c\/table\u003e \u003ch2\u003eClinical \u0026amp; Research Laboratory Applications\u003c\/h2\u003e \u003cp\u003eCaplugs® Evergreen 3.5 mL graduated transfer pipets serve blood banking and serology laboratories requiring approximate volume delivery verification without a separate measuring pipette. The printed graduation marks allow the analyst to confirm that a specific volume (e.g., 1.0 mL plasma, 0.5 mL serum) was transferred without a separate calibrated pipette step — critical for batch crossmatch setups, plasma volume calculations in component therapy, and tube serology protocols where specific serum:cell ratios affect agglutination sensitivity. Manual ELISA coating setups and antibody titration assays use the graduated format to dispense known approximate volumes of antigen or antibody solution across a tube panel before precise dilution.\u003c\/p\u003e \u003ch2\u003eU.S. Manufacturing, Quality \u0026amp; Institutional Procurement\u003c\/h2\u003e \u003cp\u003eCaplugs® 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.\u003c\/p\u003e \u003cp\u003eLabSupplies.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 \u003ca href=\"#request-sample\"\u003erequest a written quote or speak with a product specialist\u003c\/a\u003e directly from our sales engineering team.\u003c\/p\u003e \u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e \u003ch3\u003eAre the transfer pipets sterile?\u003c\/h3\u003e \u003cp\u003eYes. Each pipet is individually sterile-packed. Sterility is maintained until the individual wrapper is opened. Single-use — discard after use.\u003c\/p\u003e \u003ch3\u003eHow accurate are the graduation marks on the graduated transfer pipet?\u003c\/h3\u003e \u003cp\u003eThe graduation marks on LDPE transfer pipets provide approximate volume guidance — typically ±10–15% at each graduation interval. They are suitable for non-critical volume estimation but are not a substitute for calibrated volumetric pipettes in analytical workflows requiring ±1–5% accuracy.\u003c\/p\u003e \u003ch3\u003eCan LDPE transfer pipets be used with organic solvents?\u003c\/h3\u003e \u003cp\u003eLDPE is compatible with dilute aqueous reagents, serum, plasma, and standard biological matrices. Short-term contact with ethanol (\u0026lt;70%) or methanol (\u0026lt;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.\u003c\/p\u003e \u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\/\", \"@type\": \"Product\", \"name\": \"Caplugs® Evergreen 222-1580-02I | 3.5 mL Graduated Transfer Pipets, 40 µL Drop — Sterile, LDPE, Natural, 500\/Bag\", \"sku\": \"222158002IE1\", \"mpn\": \"222-1580-02I\", \"brand\": {\"@type\": \"Brand\", \"name\": \"Caplugs® Evergreen\"}, \"manufacturer\": {\"@type\": \"Organization\", \"name\": \"Caplugs® Evergreen\", \"address\": \"USA\"}, \"material\": \"Low-Density Polyethylene (LDPE)\", \"color\": \"Natural\", \"image\": \"https:\/\/prod-cp-cdn-images.azureedge.net\/catalog\/92300\/9093F9E9-0629-4E5F-B21B-39C8A1BB4B87\/230-1580-020_01.jpg\", \"description\": \"Caplugs® Evergreen 222-1580-02I: 3.5 mL Graduated Transfer Pipets, 40 µL Drop, Sterile, LDPE, Natural, 500\/Bag. MADE IN USA, authorized dealer.\", \"additionalProperty\": [{\"@type\": \"PropertyValue\", \"name\": \"Capacity\", \"value\": \"3.5 mL\"}, {\"@type\": \"PropertyValue\", \"name\": \"Tip Type\", \"value\": \"Graduated\"}, {\"@type\": \"PropertyValue\", \"name\": \"Drop Size\", \"value\": \"~40 µL\"}, {\"@type\": \"PropertyValue\", \"name\": \"Pack Size\", \"value\": \"500\/Bag\"}, {\"@type\": \"PropertyValue\", \"name\": \"Sterility\", \"value\": \"Sterile\"}, {\"@type\": \"PropertyValue\", \"name\": \"Origin\", \"value\": \"USA\"}], \"offers\": {\"@type\": \"Offer\", \"priceCurrency\": \"USD\", \"price\": \"102.13\", \"availability\": \"https:\/\/schema.org\/InStock\", \"url\": \"https:\/\/labsupplies.com\/products\/222-1580-02i-transfer-pipet-graduated\"}}\u003c\/script\u003e \u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\/\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"Are the 222-1580-02I transfer pipets sterile?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes. 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