Globe Scientific

Graduated Cylinders

<h2>What Are Graduated Cylinders?</h2>
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Graduated cylinders are tall, narrow borosilicate glass or polymer vessels calibrated with multiple volume graduation marks, used to measure liquid volumes at bench scale &mdash; more accurately than beakers (&plusmn;5% capacity) but less accurately than volumetric flasks (&plusmn;0.05&ndash;0.1% capacity). They are the everyday volumetric tool in chemistry, biology, and clinical labs for measuring reagent volumes, preparing buffer dilutions, and transferring liquids where a precise but not analytically exact volume is required. Class A borosilicate glass graduated cylinders at MBP conform to ASTM E1272 / ISO 4788 tolerances.&nbsp;Choose Class A cylinders for applications where stated volume accuracy matters; choose Class B for routine measurements where a fast approximate reading is sufficient.
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<h2>Product Range at MBP</h2>
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Class A high-accuracy measuring cylinders
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Class B general use graduated cylinders
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Clear single-scale graduated cylinders
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Dual-scale (mL/oz) measuring cylinders
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Autoclavable laboratory measuring cylinders
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<h2>How to Choose Graduated Cylinders</h2>
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Class A vs. Class B
Class A graduated cylinders conform to ASTM E1272 / ISO 4788 Class A tolerances &mdash; e.g., &plusmn;0.5 mL for a 100 mL cylinder, &plusmn;2.0 mL for a 1,000 mL cylinder. Class B tolerances are twice as wide as Class A. Class A cylinders are appropriate for protocols specifying cylinder-grade volume accuracy; Class B for routine lab measurements where tight tolerances are not required.
Single Scale vs. Dual Scale (mL/oz)
Single-scale cylinders are marked in mL only &mdash; cleaner graduation lines, easier to read, preferred for labs working exclusively in metric units. Dual-scale cylinders carry both mL and oz markings, useful in labs operating across metric and US customary units or for customer-facing applications requiring oz notation.
Autoclavable Glass vs. Plastic
Borosilicate glass graduated cylinders are autoclavable at 121&deg;C, resistant to all common lab reagents, and reusable indefinitely with careful handling. PP plastic cylinders are shatterproof and autoclavable at 121&deg;C but are not suitable for organic solvents or high heat above 135&deg;C.
Size and Base Type
Common sizes: 10 mL, 25 mL, 50 mL, 100 mL, 250 mL, 500 mL, 1,000 mL, and 2,000 mL. Hexagonal bases provide better bench stability than round bases &mdash; important in high-traffic labs where tip-over risk is a concern.
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<h2>Specifications Context</h2>
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Borosilicate glass graduated cylinders conforming to ASTM E1272 / ISO 4788 are calibrated "to contain" (TC) the stated volume &mdash; the mark indicates the volume held in the cylinder, not delivered from it (Class A volumetric flasks are also TC). Reading technique: for aqueous solutions in glass, read the bottom of the curved meniscus at eye level to eliminate parallax error. Borosilicate 3.3 has a strain point of 515&deg;C; autoclave tolerance is 121&deg;C for standard sterilisation cycles. As of June 2026, MBP stocks Class A and Class B graduated cylinders in single and dual-scale formats for labs in the US, Canada, and worldwide.
Reach out to the <a href="https://mbpinc.net/contact-us">team at Molecular Biology Products Inc. (MBP)</a> to request a quote for your lab requirements.

Flyer

Diamond® Essentials™ PMP Class B Graduated Measuring Cylinders

3703-10 by Globe Scientific — 10 mL Diamond® Essentials™ PMP Class B graduated measuring cylinder. USP Class VI PMP, DIN 12681/ISO 6706 Class B compliant, FDA 21-CFR and European Pharmacopeia approved. Available in 10–2,000 mL. Ships worldwide from MBP Inc.

Manufacture

Cylinder, Measuring, Diamond Essentials, Class B, PMP, Molded Graduations, tall form, 10mL, CS/24

Cylinder, Measuring, Diamond Essentials, Class B, PMP, Molded Graduations, tall form, 25mL, CS/18

Cylinder, Measuring, Diamond Essentials, Class B, PMP, Molded Graduations, tall form, 50mL, CS/18

Cylinder, Measuring, Diamond Essentials, Class B, PMP, Molded Graduations, tall form, 100mL, CS/12

Cylinder, Measuring, Diamond Essentials, Class B, PMP, Molded Graduations, tall form, 250mL, CS/12

Cylinder, Measuring, Diamond Essentials, Class B, PMP, Molded Graduations, tall form, 500mL, CS/8

Cylinder, Measuring, Diamond Essentials, Class B, PMP, Molded Graduations, tall form, 1000mL, CS/6

Cylinder, Measuring, Diamond Essentials, Class B, PMP, Molded Graduations, tall form, 2000mL, CS/4

Plastic Beakers

<h2 data-section-id="174q2lb" data-start="139" data-end="167">What Are Plastic Beakers?</h2>
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Plastic beakers are shatterproof cylindrical laboratory vessels manufactured from polypropylene (PP) or polymethylpentene (PMP), designed for safe and lightweight liquid handling in environments where glass breakage is a concern. Polypropylene (PP) is the most commonly used material due to its strong chemical resistance to dilute acids, bases, alcohols, and most aqueous reagents, along with autoclavability at 121&deg;C and permanently molded graduations that do not fade with use. Polymethylpentene (PMP) offers higher optical clarity and better heat tolerance, making it suitable for applications requiring visual monitoring of solutions. Choose PP plastic beakers for routine buffer preparation, aqueous reagents, teaching labs, and field use; choose glass beakers when working with organic solvents, high temperatures above ~135&deg;C, or when maximum optical clarity is required.
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<h2 dir="ltr">What you will find:</h2>
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Options from 5mL for micro-work to 10,000mL for bulk prep.
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High-clarity polypropylene built for heavy reagent use.
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Options for Tri-corner beaker are also available.
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Molded-in graduations that never fade or rub off.
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Engineered for drip-free pouring and zero-waste transfers.
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Stock up with Case Packs or grab a single unit.
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<h2 data-section-id="149sszu" data-start="1054" data-end="1086">How to Choose Plastic Beakers</h2>
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Material: Polypropylene vs. Polymethylpentene
Polypropylene (PP) beakers are the standard choice in most laboratories because they are autoclavable at 121&deg;C, cost-effective, and resistant to a wide range of aqueous reagents including dilute acids and bases. They are typically translucent and designed for general-purpose laboratory workflows. Polymethylpentene (PMP) beakers, on the other hand, offer near-glass optical clarity (approximately 90% light transmission) and can tolerate higher temperatures up to around 175&deg;C, making them suitable for applications where visibility of the solution is important during mixing or heating.
Graduation Type: Molded-In
Plastic beakers at MBP feature molded-in graduations that are permanently embossed into the wall of the vessel. These markings remain legible even after repeated autoclaving, chemical exposure, and washing cycles, making them more durable than printed alternatives and ideal for long-term reuse.
Volume Range
MBP supplies plastic beakers in sizes ranging from 5 mL to 10,000 mL. Small-volume beakers (5&ndash;50 mL) are used for micro-scale reagent preparation, while mid-range sizes (250 mL&ndash;1,000 mL) are standard for routine buffer preparation. Large-capacity beakers (2,000&ndash;10,000 mL) are used for bulk reagent mixing, media preparation, and large-scale laboratory workflows.
Tri-Corner Beaker Option
Tri-corner (tri-pour) beakers are a specialized plastic format designed with three pour spouts for controlled dispensing and reduced dripping. These are commonly used in reagent distribution stations, waste handling, and workflows requiring frequent liquid transfer. They are typically made from polypropylene and complement standard round-form beakers.
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<h2 data-section-id="1jl751w" data-start="3281" data-end="3306">Specifications Context</h2>
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Polypropylene (PP) has a density of approximately 0.91 g/cm&sup3; and is chemically resistant to dilute acids (HCl, H₂SO₄), bases (NaOH, KOH), alcohols, and most aqueous buffers. However, it is not compatible with concentrated oxidizing acids (such as concentrated nitric or sulfuric acid) or halogenated organic solvents (such as chloroform, methylene chloride, or xylene). Molded graduations typically maintain an accuracy of &plusmn;5% of total capacity. PMP provides higher transparency and improved heat resistance compared to PP but is generally more expensive.
MBP stocks plastic beakers in a full range of sizes from 5 mL to 10,000 mL, including standard round-form and tri-corner designs for institutional laboratory use.
Upgrade to equipment that truly lasts the lab life. Look through our website and <a href="https://mbpinc.net/contact-us" style="color: #236fa1; text-decoration: underline;">contact the MBP team</a> for a quote to get lab supplies that won't let you down.

Diamond® Essentials™ PMP Griffin Style Beakers with Handle Specifications

Diamond® Essentials™ PMP Griffin Style Beakers with Handle

3656-100 by Globe Scientific is a 100 mL PMP Griffin style beaker with handle, near-UV-transparent, autoclavable at 121°C, and USP Class VI certified. Dimensions 63×53×73 mm, dual-scale graduations 20–100 mL, non-drip spout. The handle enables safe hot-liquid pouring directly after sterilisation. Supplied 12/case.

Beaker with Handle, Diamond Essentials, Low Form, Printed Graduations, PMP, 100mL, 1/Bag, CS/12

Beaker with Handle, Diamond Essentials, Low Form, Printed Graduations, PMP, 250mL, 1/Bag, CS/12

Beaker with Handle, Diamond Essentials, Low Form, Printed Graduations, PMP, 600mL, 1/Bag, CS/12

Beaker with Handle, Diamond Essentials, Low Form, Printed Graduations, PMP, 1000mL, 1/Bag, CS/6

Beaker with Handle, Diamond Essentials, Low Form, Printed Graduations, PMP, 2000mL, 1/Bag, CS/4

Beaker with Handle, Diamond Essentials, Low Form, Printed Graduations, PMP, 5000mL, 1/Bag, CS/2

Glass Beakers

<h2 data-section-id="1opwkme" data-start="170" data-end="207">What Are Glass Laboratory Beakers?</h2>
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Glass laboratory beakers are wide-mouth borosilicate vessels with a flat base, pour spout, and volume graduation markings, used for heating liquids on hot plates, mixing reagents, preparing buffers, and performing titrations. Borosilicate glass (ASTM E960, USP Type I) is the standard material for lab-grade glass beakers because its low coefficient of thermal expansion (~3.3&times;10⁻⁶/K) provides excellent resistance to thermal shock while maintaining chemical inertness against most laboratory acids, bases, and organic solvents. Choose borosilicate glass beakers for high-heat protocols, organic solvent work, and applications where chemical purity and optical clarity are essential.
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<h2 dir="ltr">At MBP, we offer:</h2>
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50mL, 100mL, 250mL, 1000mL, 2000mL, 5000mL, and 10,000mL capacities.
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Shatterproof Polypropylene (PP) or crystal-clear Polymethylpentene (PMP).
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Low-form versatility with easy-pour, non-drip spouts.
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Clear dual-scale markings for rapid and accurate measuring.
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Fully autoclavable at 121&deg;C for sterile lab environments.
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High resistance to most acids, bases, and common solvents.
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Stackable geometry to maximize benchtop and cabinet space.
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<h2 data-section-id="qre4og" data-start="898" data-end="928">How to Choose Glass Beakers</h2>
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Size: Matching Capacity to Workflow
Glass beaker size should be selected according to the volume of solution being prepared or heated. Small 50&ndash;100 mL beakers are commonly used for staining procedures, dyes, and small-scale reactions, while 250 mL beakers are suitable for routine buffer preparation and sample digestion. For larger laboratory workflows, 1,000 mL beakers are commonly used for standard media and buffer preparation, while 2,000 mL models provide additional capacity for larger batches and water-bath applications. Laboratories preparing bulk reagents or culture media often use 5,000&ndash;10,000 mL beakers. As a general guideline, fill beakers to no more than two-thirds of their nominal capacity during heating to allow for liquid expansion and reduce boil-over risk.
Graduation Type: Molded vs. Printed Dual-Scale
Molded graduations are embossed directly into the glass surface, making them resistant to solvents, cleaning procedures, and repeated autoclaving. Printed dual-scale graduations provide enhanced visibility and may include both metric and imperial measurements for convenience. Laboratories that frequently sterilize glassware often prefer molded graduations because they remain readable throughout the product's service life.
Form Factor
Low-form Griffin-style beakers are the most common laboratory beakers due to their wide, stable base and suitability for magnetic stirring and hot-plate heating. Tall-form Berzelius beakers provide a narrower profile and taller liquid column, making them useful for certain titration procedures, distillation work, and applications where splash reduction is desirable.
Autoclave Compatibility
Borosilicate glass beakers can be safely autoclaved at 121&deg;C and are suitable for dry-heat sterilization up to 500&deg;C. Beakers should never be sealed during autoclaving because thermal expansion of liquids may create pressure buildup. Although borosilicate glass maintains excellent dimensional stability, repeatedly autoclaved beakers should not be relied upon for precision volumetric measurements.
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<h2 data-section-id="1jl751w" data-start="3556" data-end="3581">Specifications Context</h2>
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Borosilicate glass beakers conforming to ASTM E960 provide graduation accuracy of approximately &plusmn;5% of total capacity at each marked volume. They withstand direct hot-plate heating, water baths, sand baths, autoclave sterilization at 121&deg;C, and dry-heat sterilization up to 500&deg;C. Borosilicate glass is resistant to most laboratory acids, alkalis, and organic solvents including hydrochloric acid, sulfuric acid, nitric acid, sodium hydroxide, ethanol, acetone, xylene, and chloroform. However, hydrofluoric acid (HF) should never be used with glass beakers because it attacks and dissolves glass surfaces.
Browse Plastic Beakers for shatter-resistant alternatives, Griffin Style Beakers for general-purpose laboratory use, or return to the Laboratory Glassware category. <a href="https://mbpinc.net/contact-us">Request a quote from the team at MBP</a> to lock in the best performance for your bench.

Diamond® Essentials™ PMP Griffin Style Low Form Beakers Specifications

Diamond® Essentials™ PMP Griffin Style Low Form Beakers

3652-50 by Globe Scientific is a 50 mL PMP (polymethylpentene) Griffin style low form beaker with USP Class VI certification. Near-UV-transparent for UV spectrophotometry applications, autoclavable at 121°C, with printed dual-scale graduations (10–50 mL) and a non-drip spout. Supplied 12 per bag — chemically resistant to most acids, bases, and many common solvents.

Beaker, Diamond Essentials, Griffin Style, Low Form, Printed Graduations, PMP, 50mL, 12/Bag, CS/48

Beaker, Diamond Essentials, Griffin Style, Low Form, Printed Graduations, PMP, 100mL, 12/Bag, CS/48

Beaker, Diamond Essentials, Griffin Style, Low Form, Printed Graduations, PMP, 250mL, 6/Bag, CS/36

Beaker, Diamond Essentials, Griffin Style, Low Form, Printed Graduations, PMP, 600mL, 4/Bag, CS/24

Beaker, Diamond Essentials, Griffin Style, Low Form, Printed Graduations, PMP, 1000mL, 3/Bag, CS/12

Beaker, Diamond Essentials, Griffin Style, Low Form, Printed Graduations, PMP, 2000mL, 1/Bag, CS/6

Beaker, Diamond Essentials, Griffin Style, Low Form, Printed Graduations, PMP, 5000mL, 1/Bag, CS/4

Beaker, Diamond Essentials, Griffin Style, Low Form, Printed Graduations, PMP, 10,000mL, 1/Bag, CS/2

Diamond® Essentials™ PP Class B Graduated Measuring Cylinders

3701-10 by Globe Scientific is a 10mL Diamond® Essentials™ Class B polypropylene (PP) graduated measuring cylinder with permanent molded graduations, hexagonal anti-roll base, and a tapered pour spout. Made from virgin USP Class VI PP resin; complies with ISO 6706, DIN 12681, and FDA 21-CFR. Calibrated to contain (TC) at 20°C. Case of 24. The 3701 series spans 10mL to 2000mL.

Cylinder, Measuring, Diamond Essentials, Class B, PP, Molded Graduations, tall form, 10mL, CS/24

Cylinder, Measuring, Diamond Essentials, Class B, PP, Molded Graduations, tall form, 25mL, CS/18

Cylinder, Measuring, Diamond Essentials, Class B, PP, Molded Graduations, tall form, 50mL, CS/18

Cylinder, Measuring, Diamond Essentials, Class B, PP, Molded Graduations, tall form, 100mL, CS/12

Cylinder, Measuring, Diamond Essentials, Class B, PP, Molded Graduations, tall form, 250mL, CS/12

Cylinder, Measuring, Diamond Essentials, Class B, PP, Molded Graduations, tall form, 500mL, CS/8

Cylinder, Measuring, Diamond Essentials, Class B, PP, Molded Graduations, tall form, 1000mL, CS/6

Cylinder, Measuring, Diamond Essentials, Class B, PP, Molded Graduations, tall form, 2000mL, CS/4

Diamond® Essentials™ PP Griffin Style Beakers with Handle Specifications

Diamond® Essentials™ PP Griffin Style Beakers with Handle

3654-100 by Globe Scientific is a 100mL Diamond® Essentials™ Griffin-style low-form PP beaker with an integrated handle. Made from virgin USP Class VI PP; autoclavable at 121°C; printed dual-scale graduations; single non-drip spout. Complies with FDA 21-CFR and European Pharmacopeia. Case of 12. Series runs 100mL–5000mL.

Beaker with Handle, Diamond Essentials, Low Form, Printed Graduations, PP, 100mL, 1/Bag, CS/12

Beaker with Handle, Diamond Essentials, Low Form, Printed Graduations, PP, 250mL, 1/Bag, CS/12

Beaker with Handle, Diamond Essentials, Low Form, Printed Graduations, PP, 600mL, 1/Bag, CS/12

Beaker with Handle, Diamond Essentials, Low Form, Printed Graduations, PP, 1000mL, 1/Bag, CS/6

Beaker with Handle, Diamond Essentials, Low Form, Printed Graduations, PP, 2000mL, 1/Bag, CS/4

Beaker with Handle, Diamond Essentials, Low Form, Printed Graduations, PP, 5000mL, 1/Bag, CS/2

Diamond® Essentials™ PP Griffin Style Low Form Beakers Specifications

Diamond® Essentials™ PP Griffin Style Low Form Beakers

3650-50 by Globe Scientific is a 50 mL Griffin style polypropylene (PP) lab beaker with USP Class VI resin certification. Features printed dual-scale graduations (10–50 mL), non-drip spout, autoclavability at 121°C, and stackable design — 12 per bag. A shatterproof, chemically resistant alternative to glass beakers for mixing, measuring, and sample prep.

Beaker, Diamond Essentials, Griffin Style, Low Form, Printed Graduations, PP, 10,000mL, 1/Bag, CS/2

Beaker, Diamond Essentials, Griffin Style, Low Form, Printed Graduations, PP, 50mL, 12/Bag, CS/48

Beaker, Diamond Essentials, Griffin Style, Low Form, Printed Graduations, PP, 100mL, 12/Bag, CS/48

Beaker, Diamond Essentials, Griffin Style, Low Form, Printed Graduations, PP, 250mL, 6/Bag, CS/36

Beaker, Diamond Essentials, Griffin Style, Low Form, Printed Graduations, PP, 600mL, 4/Bag, CS/24

Beaker, Diamond Essentials, Griffin Style, Low Form, Printed Graduations, PP, 1000mL, 3/Bag, CS/12

Beaker, Diamond Essentials, Griffin Style, Low Form, Printed Graduations, PP, 2000mL, 1/Bag, CS/6

Beaker, Diamond Essentials, Griffin Style, Low Form, Printed Graduations, PP, 5000mL, 1/Bag, CS/4

Single Channel Pipettors

<h2 dir="ltr">What Are Single-Channel Pipettors?</h2>
 A single-channel pipettor is the single most widely used liquid handling instrument in molecular biology, cell biology, and clinical research. It transfers precise volumes between 0.1 &micro;L and 5,000 &micro;L, one well or tube at a time, using an air-displacement piston mechanism. The piston creates a partial vacuum that aspirates liquid into a disposable tip; advancing the piston fully dispenses the liquid. A spring-loaded tip ejector releases the used tip without hand contact for contamination control. Manual models depend on finger force and offer simple, battery-free operation; electronic models add programmable aspiration/dispensing speeds, multi-dispense modes, and up to 5 custom pipetting programs.&nbsp; A set of four manual single-channel pipettors (P10, P20, P200, P1000) covers 95% of molecular biology liquid handling; add electronic models for high-throughput repetitive work.
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<h2 dir="ltr">What you will find:</h2>
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Adjustable volume single-channel pipettors for flexible workflows
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Fixed volume pipettors for repeatable dispensing tasks
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Mechanical pipettors for standard lab use
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Ultra-low volume micropipettors for precise &micro;L handling
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Wide-range pipettors covering &micro;L to mL volumes
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Autoclavable pipettors for sterile environments
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Lightweight ergonomic pipettors for long sessions
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<h2 dir="ltr"> How to Choose a Single-Channel Pipettor</h2>
 Volume Range: Build a Complete Bench Set A standard four-pipettor bench set covers P10 (1&ndash;10 &micro;L), P20 (2&ndash;20 &micro;L), P200 (20&ndash;200 &micro;L), and P1000 (100&ndash;1,000 &micro;L). For sub-microliter work (sequencing, single-cell), add a P2 (0.2&ndash;2 &micro;L). For large-volume dispensing (media prep, column loading), add a P5000 (1,000&ndash;5,000 &micro;L). Avoid selecting a volume range that places your target dispense below 20% of the maximum &mdash; accuracy degrades at the low end of any range. Manual vs Electronic Manual single-channel pipettors (Eppendorf Research Plus, Gilson PIPETMAN Classic, Rainin Pipet-Lite XLS+) are the standard for routine lab work: field-calibratable, autoclavable, and requiring no power source. Electronic single-channel pipettors (Eppendorf Research Pro, Rainin Pipet-Lite XLS+ Electronic) add: programmable aspiration/dispense speed (5 speeds), multi-dispense (repeat pipetting) mode, mix mode, dilution mode, and backlight LCD volume display. Electronic models reduce hand fatigue in workflows exceeding 200&ndash;300 tip changes per day. Tip Compatibility Three tip systems cover the market: standard conical (universal fit &mdash; fits Eppendorf Research Plus, Gilson PIPETMAN, Rainin non-LTS, Thermo, Sartorius/BioHit); Rainin LTS cylindrical (requires LTS-specific tips &mdash; lower force insertion); Eppendorf epT.I.P.S. proprietary (tightest fit for Eppendorf instruments). Select the tip system that matches your pipettor purchase and existing tip inventory before committing to a brand. Autoclavability and Chemical Resistance Manual pipettors from Eppendorf, Gilson, and Rainin have fully autoclavable lower sections (121&deg;C, 15 psi, 15 min). Electronic pipettors have autoclavable nose cones only &mdash; the electronic module cannot be autoclaved. Calibration and Service All single-channel pipettors are factory-calibrated per ISO 8655. Field recalibration tools are available for Eppendorf, Gilson, and Rainin to perform in-lab gravimetric verification without external service. 
<h2 dir="ltr"> Specifications Context </h2>
 ISO 8655 Part 2 accuracy spec for a 200 &micro;L air-displacement pipettor: &plusmn;0.8 &micro;L systematic error, &le;0.3 &micro;L random error (Eppendorf Research Plus specification at 200 &micro;L). Most manual pipettors weigh 70&ndash;120 g; electronic models weigh 150&ndash;220 g. Operating temperature range: typically 15&ndash;40&deg;C. Eppendorf Research Plus, Gilson PIPETMAN Classic, and Rainin Pipet-Lite XLS+ LTS remain the three dominant single-channel pipettor platforms in North American research labs.&nbsp; 
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Ready to find your new favorite lab tool? Don&rsquo;t just settle for any grip&mdash;find the one that fits your hand and your science. <a href="https://mbpinc.net/contact-us" style="color: #236fa1;">Reach out to the MBP team</a> today for a customized quote.

3322-Group-Pipettor Brochure

Diamond® Jr. Mini Pipettors

Globe Scientific Diamond® Jr. pocket-sized fixed-volume mini pipettors (SKU 3322) — autoclavable, colour-coded, available in 5 µL, 10 µL, 20 µL, 25 µL, 35 µL, 50 µL, and 100 µL. Designed for diagnostic kits, water testing, science education, and field lab use. Non-adjustable fixed volume eliminates accidental dial changes. Assorted 6-set available (3322P).

Pipette, Diamond Jr., 5uL, Orange, Autoclavable , EA

Pipette, Diamond Jr., 10uL, Pink, Autoclavable, EA

Pipette, Diamond Jr., 20uL, Green, Autoclavable, EA

Pipette, Diamond Jr., 25uL, Green, Autoclavable, EA

Pipette, Diamond Jr., 35uL, Autoclavable, EA

Pipette, Diamond Jr., 50uL, Purple, Autoclavable, EA

Pipette, Diamond Jr., 100uL, Orange, Autoclavable, EA

Pipette, Diamond Jr., Pack of 6 Pipettes (5uL, 10uL, 20uL, 25uL, 50uL and 100uL), Autoclavable, KIT/1

Centrifuge Tubes

<h2>What Are Centrifuge Tubes?</h2>
 Centrifuge tubes are cylindrical laboratory containers with caps that are used to separate, pellet, and store biological or chemical samples through centrifugal force. They are commonly made from polypropylene (PP) or polystyrene (PS) and are available in sizes ranging from small 0.5 mL microtubes to larger 50 mL conical tubes. These tubes are widely used for cell pelleting, protein precipitation, DNA and RNA extraction, tissue homogenate clarification, and long-term sample storage. Depending on the material, they can withstand temperatures from &minus;80 &deg;C to +121 &deg;C.
In short, the best centrifuge tube depends on your centrifuge rotor, required g-force, sample volume, and sterility needs. 
<h2>What You Will Find: </h2>
<ul>
<li><a href="https://mbpinc.net/consumables/centrifuge-tubes/all-centrifuge-tubes" title="All Centrifuge Tubes">All Centrifuge Tubes</a>: Comprehensive selection of 15 mL and 50 mL conical tubes with clear graduations for daily lab workflows.</li>
<li><a href="https://mbpinc.net/consumables/centrifuge-tubes/oak-ridge-style-centrifuge-tubes" title="Oak Ridge Style Centrifuge Tubes">Oak Ridge Style Centrifuge Tubes</a>: High-speed, chemical-resistant tubes designed to withstand extreme RCF without deformation.</li>
<li><a href="https://mbpinc.net/consumables/centrifuge-tubes/centrifuge-bottles" title="Centrifuge Bottles">Centrifuge Bottles</a>: Heavy-duty, larger-capacity vessels engineered for bulk sample processing and high-velocity runs.</li>
<li><a href="https://mbpinc.net/consumables/centrifuge-tubes/large-volume-centrifuge-tubes" title="Large Volume Centrifuge Tubes">Large Volume Centrifuge Tubes</a>: Industrial-strength 250 mL and 500 mL tubes optimized for pilot-scale harvesting and bioprocessing.</li>
</ul>
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<h2>How to Choose Centrifuge Tubes</h2>
 Volume and Rotor Compatibility
Select a tube size that matches both your sample volume and centrifuge rotor. Microtubes ranging from 0.5&ndash;2 mL are commonly used in microcentrifuges and can typically handle speeds up to 20,000 &times; g. Midi tubes in the 5&ndash;10 mL range are suitable for intermediate sample volumes, while 15 mL and 50 mL conical tubes are commonly used in clinical, research, and preparative centrifuges.
Material: Polypropylene vs. Polystyrene
Polypropylene (PP) tubes offer excellent chemical resistance and can tolerate temperatures from &minus;80 &deg;C to +121 &deg;C. They are suitable for autoclaving and exposure to many laboratory solvents. Polystyrene (PS) tubes provide superior optical clarity, making it easier to visually inspect samples and liquid levels, but they have lower resistance to solvents and extreme temperatures.
Sterility and Contamination Control
Sterile centrifuge tubes are typically gamma- or E-beam-irradiated and certified free of RNase, DNase, and pyrogens. These tubes are recommended for RNA extraction, cell culture, and clinical applications where contamination must be minimized. Non-sterile tubes may still be RNase- and DNase-free and are often suitable for routine DNA work and general sample storage.
Cap Design
Attached screw caps help prevent cap mix-ups and sample contamination, especially in high-throughput laboratories. Separate caps can be quicker to open and may be preferred in workflows that require frequent access to samples. If tubes will be used with automated systems, cap dimensions should be verified for compatibility with liquid handling equipment.
Packaging Options
Racked tubes provide convenient organization and allow direct pipetting while the tubes remain in the rack. Bulk-bagged tubes offer a more economical option for laboratories that process large volumes of samples and already have tube storage systems in place.
<h2> Comparing Common Centrifuge Tube Types</h2>
 Microtubes (0.5&ndash;2 mL) are ideal for PCR preparation, microcentrifuge applications, and storage of small sample volumes. They can generally withstand centrifugal forces up to 20,000 &times; g.
Midi tubes (5&ndash;10 mL) are designed for intermediate sample volumes such as culture supernatants and can typically tolerate forces up to 16,000 &times; g.
Sterile 15 mL conical tubes are frequently used for cell pelleting, RNA extraction, and clinical sample processing, with typical ratings between 12,000 and 15,000 &times; g.
Sterile 50 mL conical tubes are commonly selected for larger-volume applications including tissue culture work, density gradient preparation, and large-scale sample processing.
Polystyrene conical tubes in 15 mL and 50 mL formats are often chosen when visual sample inspection is important and solvent exposure is minimal.
<h2> Specifications and Features</h2>
 Polypropylene centrifuge tubes from Globe Scientific and Nest Scientific are manufactured from USP Class VI virgin resin and do not contain plasticizers or processing additives. Sterile products are typically irradiated to achieve a sterility assurance level (SAL) of 10⁻⁶. Most 15 mL tubes feature graduation marks at 1 mL intervals, while 50 mL tubes are usually graduated every 5 mL. MBP offers both bagged and racked centrifuge tube formats, including 15 mL and 50 mL conical tubes as well as smaller microtube and midi tube options.
MBP supports procurement departments by accepting purchase orders and offering institutional pricing for qualified high-volume customers. <a href="https://mbpinc.net/contact-us">Contact the MBP team today</a> for a customized quote.

<h2 data-section-id="155qizo" data-start="0" data-end="33">What Are All Centrifuge Tubes?</h2>
&nbsp;
The All Centrifuge Tubes collection includes the complete range of tube sizes commonly used in research, clinical, and laboratory environments. These tubes range from small 0.5 mL and 1.5&ndash;2 mL microtubes used in microcentrifuge applications to 5 mL and 10 mL midi tubes for intermediate sample volumes, as well as 15 mL and 50 mL conical tubes designed for cell culture, density gradient preparation, and larger-volume sample processing. They are available in polypropylene (PP) for enhanced chemical resistance and temperature tolerance or polystyrene (PS) for improved optical clarity.
&nbsp;
What you will find:
&nbsp;
<ul>
<li dir="ltr" aria-level="1">
<a href="https://mbpinc.net/consumables/centrifuge-tubes/all-centrifuge-tubes/microcentrifuge-tubes" title="Microcentrifuge Tubes">Microcentrifuge Tubes</a> &ndash; Precision-engineered for small-volume sample preparation.
</li>
<li dir="ltr" aria-level="1">
<a href="https://mbpinc.net/consumables/centrifuge-tubes/all-centrifuge-tubes/screw-cap-tubes" title="Screw Cap Tubes">Screw Cap Tubes</a> &ndash; Secure, leak-proof closures for long-term storage and transport.
</li>
<li dir="ltr" aria-level="1">
<a href="https://mbpinc.net/consumables/centrifuge-tubes/all-centrifuge-tubes/15ml-and-50ml-centrifuge-tubes" title="15ml &amp; 50ml Centrifuge Tubes">15ml &amp; 50ml Centrifuge Tubes</a> &ndash; Standard conical bottom tubes for large-volume processing.
</li>
<li dir="ltr" aria-level="1">
<a href="https://mbpinc.net/consumables/centrifuge-tubes/all-centrifuge-tubes/midicentrifuge-tubes-5ml-and-10ml" title="Midicentrifuge Tubes (5ml &amp; 10ml)">Midicentrifuge Tubes (5ml &amp; 10ml)</a> &ndash; The perfect bridge for intermediate sample sizes.
</li>
<li dir="ltr" aria-level="1">
<a href="https://mbpinc.net/consumables/centrifuge-tubes/all-centrifuge-tubes/microtubes-box" title="Microtubes Box">Microtubes Box</a> &ndash; Durable storage racks for organized sample management and protection.
</li>
</ul>
&nbsp;
<h2 data-section-id="1f93yys" data-start="914" data-end="963">How to Choose From All Centrifuge Tube Formats</h2>
&nbsp;
Volume and Rotor Compatibility
Selecting the correct tube size is essential for safe and efficient centrifugation. Microtubes ranging from 0.5&ndash;2 mL are designed for microcentrifuges, while 5&ndash;10 mL midi tubes fit compatible benchtop centrifuge rotors. Larger 15 mL and 50 mL conical tubes are commonly used in clinical and research centrifuges. Always verify rotor compatibility before introducing a new tube format into your workflow.
Sterility Requirements
For sensitive applications such as RNA extraction, cell culture, and clinical diagnostics, sterile tubes certified free of RNase, DNase, and pyrogens are recommended. Non-sterile tubes can provide a cost-effective solution for routine DNA analysis, protein assays, and general sample storage where sterility is not critical.
Material Selection
Polypropylene tubes offer excellent durability, can be autoclaved at 121 &deg;C, and resist many laboratory chemicals and solvents. Polystyrene tubes provide superior transparency, making it easier to monitor liquid levels and sample contents, although they are less resistant to heat and solvents.
Packaging and Inventory Planning
Microtubes are commonly available in pack sizes ranging from 500 to 1,000 units, while 15 mL and 50 mL conical tubes are often supplied in cases of 500. Laboratories with consistent usage may benefit from establishing recurring purchase orders to ensure uninterrupted supply.
&nbsp;
<h2 data-section-id="urfo3f" data-start="2395" data-end="2433">Compare Centrifuge Tube Size Groups</h2>
&nbsp;
Microtubes (0.5&ndash;2 mL) are primarily used for PCR preparation, microcentrifuge applications, and storage of small sample volumes. These are typically manufactured from polypropylene and are available in pack sizes of 500&ndash;1,000 units.
Midi tubes (5&ndash;10 mL) support intermediate-volume centrifugation and supernatant collection. They are commonly made from polypropylene and supplied in packs ranging from 100&ndash;500 units.
15 mL conical tubes are widely used for cell pelleting, RNA isolation, and clinical sample processing. They are available in both polypropylene and polystyrene formats and are generally packaged in cases of 500.
50 mL conical tubes are designed for larger-volume workflows, including tissue culture, density gradient preparation, and sample processing. Like 15 mL tubes, they are available in polypropylene and polystyrene and are commonly sold in cases of 500.
&nbsp;
<h2 data-section-id="1ezckh3" data-start="3318" data-end="3348">Specifications and Features</h2>
&nbsp;
Globe Scientific and Nest Scientific centrifuge tubes are manufactured from USP Class VI virgin polypropylene or polystyrene resin and are certified free from detectable RNase, DNase, and pyrogens. Sterile products are irradiated using gamma or E-beam methods to achieve a sterility assurance level (SAL) of 10⁻⁶. MBP offers both racked and bagged formats for 15 mL and 50 mL conical tubes, along with dispenser-box options for selected microtube product lines that support efficient use in high-throughput laboratory environments.
For procurement teams, MBP accepts purchase orders and offers institutional pricing for bulk and high-volume purchases. <a href="https://mbpinc.net/contact-ushttps://mbpinc.net/contact-us" title="Contact the MBP team" style="color: #236fa1;">Contact the MBP team</a> today to learn more

All Centrifuge Tubes

<h2 data-section-id="hcowtr" data-start="0" data-end="45">What Are 15 mL and 50 mL Centrifuge Tubes?</h2>
&nbsp;
15 mL and 50 mL centrifuge tubes are conical-bottom vessels in polypropylene (PP) or polystyrene (PS), the two most commonly used tube formats in research and clinical laboratories worldwide. The 15 mL tube is the standard for cell pelleting, RNA isolation, small-scale protein purification, and clinical sample preparation. The 50 mL tube handles larger culture volumes, gradient preparation, tissue homogenate clarification, and bulk precipitation steps. Both formats from Globe Scientific and Nest Scientific are rated to 12,000&ndash;15,000 &times; g in a supported rotor.
15 mL for cell and molecular workflows under 12 mL; 50 mL for culture volumes, gradients, and any prep where a 15 mL conical runs out of headroom.
&nbsp;
<h2 dir="ltr">What you will find:</h2>
&nbsp;
<ul>
<li>Attached flat top screw cap: Leak-proof, one-hand use</li>
<li>Racked: Pre-organized for high-throughput</li>
<li>Self-standing: Stable skirted base</li>
<li>Sterile: For contamination-sensitive work</li>
<li>Non-sterile: General, cost-effective use</li>
<li dir="ltr" role="presentation">Bulk: High-volume, economical</li>
<li dir="ltr" role="presentation">Racked: Organized &amp; ready-to-use</li>
<li dir="ltr" role="presentation">PS racked: Extra stability with polystyrene racks</li>
</ul>
&nbsp;

<h2 data-section-id="1j0vxh6" data-start="772" data-end="821">How to Choose 15 mL and 50 mL Centrifuge Tubes</h2>
&nbsp;
Material: PP vs PS
Polypropylene tubes (Globe Scientific, Nest Scientific) are resistant to most organic solvents, stable from &minus;80 &deg;C to +121 &deg;C, and autoclavable. Polystyrene tubes offer greater optical clarity &mdash; the tube wall is transparent enough to read the sample meniscus and assess pellet quality without removing the tube from the rack. Choose PS when visual inspection is a workflow step; choose PP for all other applications.
Sterility Grade
Sterile tubes (gamma- or E-beam-irradiated, RNase-free, DNase-free, non-pyrogenic) are required for RNA work, primary cell culture, and clinical sample handling. Non-sterile, DNase/RNase-free tubes are appropriate and more cost-effective for DNA extractions, protein assays, and general preparative spins.
Cap Style: Flat-Top vs Plug-Seal
Flat-top screw caps (high-density polyethylene, HDPE) provide a flat writing surface for sample labeling and a double-threaded design that reduces cross-threading in high-throughput workflows. Plug-seal screw caps (HDPE or PP) create a secondary internal seal for leak-prone applications. Attached caps come pre-assembled on sterile tubes; separate caps are standard on non-sterile tubes.
Pack Format: Racked vs Bagged
Racked tubes (foam or PS rack, 50 &times; 15 mL or 25 &times; 50 mL per rack, 500 per case) allow direct pipetting without removing tubes and enable viewing of graduations without disturbing the rack. Bagged tubes (25 or 50 per bag, 500 per case) offer a lower cost per tube and suit labs with robotic liquid handlers or in-house racking systems.
&nbsp;
<h2 data-section-id="up19i6" data-start="2392" data-end="2431">Compare 15 mL and 50 mL Tube Options</h2>
&nbsp;
Globe Scientific 15 mL polypropylene tubes with flat-top blue caps are available in both sterile and non-sterile formats with attached or separate caps. These tubes can be purchased in racked or bagged packaging configurations, with 500 tubes per case, and are rated to withstand centrifugal forces up to 15,000 &times; g.
Globe Scientific 15 mL polystyrene tubes with red caps provide enhanced optical clarity for visual sample inspection and are available in sterile and non-sterile versions. They are supplied with attached or separate caps, offered in racked or bagged formats, and rated up to 12,000 &times; g.
Globe Scientific 50 mL polypropylene tubes with flat-top blue caps are designed for larger-volume centrifugation workflows. Available in sterile and non-sterile configurations with attached or separate caps, these tubes are supplied in racked or bagged packaging and can withstand centrifugal forces up to 15,000 &times; g.
Globe Scientific 50 mL polystyrene tubes with red caps combine large-volume capacity with excellent transparency for easy sample visualization. They are available in sterile and non-sterile formats, supplied with attached or separate caps, packaged either racked or bagged, and rated up to 12,000 &times; g.
Nest Scientific 15 mL polypropylene tubes are supplied sterile with attached caps and packaged in polystyrene racks containing 500 tubes per case. These tubes are rated to 12,000 &times; g and are commonly used in cell culture, clinical, and molecular biology applications.
&nbsp;
<h2 data-section-id="1jl751w" data-start="3950" data-end="3975">Specifications Context</h2>
&nbsp;
Globe Scientific 15 mL and 50 mL centrifuge tubes are molded from USP Class VI virgin polypropylene or polystyrene, certified RNase-free, DNase-free, and non-pyrogenic by lot. The 15 mL PP tube is rated to 15,000 &times; g; 50 mL PP tubes to 15,000 &times; g in a supported rotor. Graduated markings on 15 mL tubes read every 1 mL (with sub-milliliter graduations below 1 mL); 50 mL tubes every 5 mL. Globe Scientific is ISO 9001:2015 certified. As of 2026, MBP stocks flat-top (blue cap) and plug-seal (red cap) variants in PP and PS, with sterile and non-sterile options available.
Ensure your high-speed separations remain consistent and safe by choosing tubes built for extreme RCF ratings. <a href="https://mbpinc.net/contact-us" style="color: #236fa1; text-decoration: underline;">Contact the Molecular Biology Products Inc. team</a> for a quote.

15ml & 50ml Centrifuge Tubes

Diamond® Max™ Centrifuge Tubes

Globe Scientific 6295 Diamond Max 15 mL PP centrifuge tube: 20,000 × g rated, USP VI resin, gamma sterile SAL 10⁻⁶, certified DNase/RNase/human DNA/pyrogen/endotoxin-free. Red Easy Grip Cap with integral seal ring. 25/bag, 500/case. Order at <a href="https://www.mbpinc.net/quickorder">mbpinc.net/quickorder</a>.

Diamond MAX Centrifuge Tube, 15mL, Attached Red Flat Top Screw Cap, PP, Printed Graduations, STERILE, Certified, 25/Re-Sealable Bag, 20 Bags/Unit, CS/500

Diamond MAX Centrifuge Tube, 15mL, Attached Red Flat Top Screw Cap, PP, Printed Graduations, STERILE, Certified, 25/Cardboard Rack, 20 Racks/Unit, CS/500

Diamond MAX Centrifuge Tube, 50mL, Attached Red Flat Top Screw Cap, PP, Printed Graduations, STERILE, Certified, 25/Re-Sealable Bag, 20 Bags/Unit, CS/500

Diamond MAX Centrifuge Tube, 50mL, Attached Red Flat Top Screw Cap, PP, Printed Graduations, STERILE, Certified, 25/Cardboard Rack, 20 Racks/Unit, CS/500

Diamond MAX Centrifuge Tube, 50mL, Attached Red Flat Top Screw Cap, PP, Printed Graduations, STERILE, Self-Standing, Certified, 25/Re-Sealable Bag, 20 Bags/Unit, CS/500

3301-1-Group-Pipettor Brochure

3301-1-Group-Maintaining Pipettor Accuracy

3301-1-Group-Diamond Pipettor User Guide

Diamond® Pipettors - Adjustable Volume

Globe Scientific Diamond® adjustable-volume single-channel micropipettors (SKU 3301-1) — 0.1–2.5 µL (full series to 1000 µL). Autoclavable tip cone, streamlined ejector for narrow containers, forward and reverse pipetting. Certificate of calibration and recalibration tool included. 1-year warranty. Soft plunger action for extended use.

Pipette, Diamond, Adjustable Volume, 0.1 - 2.5uL, Pink, EA

Pipette, Diamond, Adjustable Volume, 0.5 - 10uL, Pink, EA

Pipette, Diamond, Adjustable Volume, 2 - 20uL, Pink, EA

Pipette, Diamond, Adjustable Volume, 5 - 50uL, Yellow, EA

Pipette, Diamond, Adjustable Volume, 10 - 100uL, Blue, EA

Pipette, Diamond, Adjustable Volume, 20 - 200uL, Lavender, EA

Pipette, Diamond, Adjustable Volume, 100 - 1000uL, Orange, EA

Pipette, Diamond, Adjustable Volume, 1000 - 5000uL (1-5mL), Light Green, EA

3302-1-Group-Pipettor Brochure

3302-1-Group-Maintaining Pipettor Accuracy

3302-1-Group-Diamond Pipettor User Guide

Diamond® Pipettors - Fixed Volume

The 3302-1 by Globe Scientific is a 1 µL fixed-volume single-channel Diamond pipettor with pink color coding and Tip Group A designation, featuring an autoclavable tip cone and lower section, forward and reverse pipetting modes, and a streamlined tip ejector. Ships with a certificate of calibration, a recalibration tool, and a one-year warranty. The Diamond fixed-volume series covers 1–5,000 µL in discrete volume steps — contact MBP at customerservice@mbpinc.net for the full range.

Pipette, Diamond, Fixed Volume, 1uL, Pink, EA

Pipette, Diamond, Fixed Volume, 2uL, Pink, EA

Pipette, Diamond, Fixed Volume, 5uL, Pink, EA

Pipette, Diamond, Fixed Volume, 10uL, Pink, EA

Pipette, Diamond, Fixed Volume, 15uL, Pink, EA

Pipette, Diamond, Fixed Volume, 20uL, Yellow, EA

Pipette, Diamond, Fixed Volume, 25uL, Yellow, EA

Pipette, Diamond, Fixed Volume, 30uL, Yellow, EA

Pipette, Diamond, Fixed Volume, 40uL, Blue, EA

Pipette, Diamond, Fixed Volume, 50uL, Blue, EA

Pipette, Diamond, Fixed Volume, 100uL, Lavender, EA

Pipette, Diamond, Fixed Volume, 200uL, Lavender, EA

Pipette, Diamond, Fixed Volume, 250uL, Orange, EA

Pipette, Diamond, Fixed Volume, 500uL, Orange, EA

Pipette, Diamond, Fixed Volume, 1000uL (1mL), Light Green, EA

Pipette, Diamond, Fixed Volume, 2000uL (2mL), Light Green, EA

Pipette, Diamond, Fixed Volume, 3000uL (3mL), Light Green, EA

Pipette, Diamond, Fixed Volume, 5000uL (5mL), Light Green, EA

Pipette, Diamond, Fixed Volume, 10000uL (10mL), Light Green, EA

3311-1-Group-Pipettor Brochure

3311-1-Group-Maintaining Pipettor Accuracy

3311-1-Group-Diamond PRO Pipettor User Guide

Diamond® Pro™ Pipettors - Adjustable Volume

3311-1 by Globe Scientific: Diamond PRO 0.1–2.5 µL adjustable-volume single-channel micropipettor, Tip Group A (red), soft TPE grips, autoclavable tip cone and lower section, forward and reverse pipetting, streamlined tip ejector, calibration certificate and recalibration kit included. 1-year warranty.

Pipette, Diamond PRO, Adjustable Volume, 0.1 - 2.5uL, Red, EA

Pipette, Diamond PRO, Adjustable Volume, 0.5 - 10uL, Pink, EA

Pipette, Diamond PRO, Adjustable Volume, 2 - 20uL, Pink, EA

Pipette, Diamond PRO, Adjustable Volume, 5 - 50uL, Yellow, EA

Pipette, Diamond PRO, Adjustable Volume, 10 - 100uL, Blue, EA

Pipette, Diamond PRO, Adjustable Volume, 20 - 200uL, Lavender, EA

Pipette, Diamond PRO, Adjustable Volume, 100 - 1000uL, Orange, EA

Pipette, Diamond PRO, Adjustable Volume, 1000 - 5000uL (1-5mL), Light Green, EA

Pipette Kit, Diamond PRO Adjustable Volume Pipettors: 0.5-10uL, 2-20uL, 20-200uL, 100-1000uL; Sterile Racked Tips: 10uL, 20uL, 200uL, 1250uL and 4-Place Stand, EA

3312-5-Group-Pipettor Brochure

3312-5-Group-Maintaining Pipettor Accuracy

3312-5-Group-Diamond PRO Pipettor User Guide

Diamond® Pro™ Pipettors - Fixed Volume

3312-5 by Globe Scientific: Diamond PRO 5 µL fixed-volume research micropipettor, single channel, Tip Group B, soft TPE grips, autoclavable tip cone, forward and reverse pipetting, streamlined tip ejector, calibration certificate and recalibration kit included. 1-year warranty.