Globe Scientific

Erlenmeyer Flasks

<h2 dir="ltr"> What Are Glass Erlenmeyer Flasks?</h2>
 Glass Erlenmeyer flasks (conical flasks) are wide-base, tapered-neck borosilicate glass vessels designed for swirling liquids without spillage, growing microbial cultures, performing titrations, and conducting vacuum filtration. The conical shape concentrates swirled liquid toward the base, keeping it away from the narrow neck during vigorous mixing &mdash; preventing splashing that would occur in a straight-sided beaker. Globe Scientific borosilicate Erlenmeyer flasks at MBP are manufactured to ISO 9001:2015 standards, are autoclavable at 121&deg;C, and are&nbsp;chemically resistant to the full range of laboratory reagents. Choose narrow-mouth for most bench workflows; wide-mouth for solid addition; screw-cap for sealed culture or transport; filter flasks for vacuum filtration. 
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<h2 dir="ltr">What you will find:</h2>
&nbsp;
<ul>
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Narrow-mouth Erlenmeyer Flasks for controlled pouring and reduced evaporation.
</li>
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Wide-mouth Erlenmeyer Flasks for easy filling and convenient pipette access.
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Heavy Duty Flasks with reinforced rims for maximum mechanical strength.
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Screw Cap Erlenmeyer Flasks to ensure airtight storage and safe transport.
</li>
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Filter Flasks designed with side arms for rapid vacuum filtration.
</li>
</ul>
<h2 dir="ltr"> How to Choose Erlenmeyer Flasks</h2>
 Narrow Mouth vs. Wide Mouth Narrow-mouth Erlenmeyer flasks are the standard format &mdash; the restricted opening reduces evaporation during prolonged incubations, accepts foam stoppers, cotton plugs, and standard rubber bungs, and provides a pouring lip for controlled transfers. Wide-mouth flasks are used when solid materials (agar powder, media granules, solid substrates) need to be added through the neck &mdash; the wider opening prevents solid-to-neck contact and residue loss. Heavy Duty Heavy-duty Erlenmeyer flasks have reinforced rims and thicker walls &mdash; suited to labs with high breakage rates, high-throughput autoclaving, or handling of large-volume flasks where the weight of flask plus contents stresses the neck during handling and transport. Screw Cap vs. Foam/Bung Closure Screw-cap Erlenmeyer flasks with polypropylene caps allow sealed incubation, safe transport of sterile media, and controlled-atmosphere storage. Standard flasks with foam or cotton closures allow gas exchange &mdash; appropriate for aerobic microbial culture. For transport or anaerobic conditions, a screw-cap is the correct choice. Filter Flask (Side Arm) Filter flasks have a tubular side arm on the neck used to connect a vacuum line during vacuum filtration. A Buchner or Hirsch funnel seated in the neck draws liquid through a filter medium into the flask body under vacuum. Use filter flasks for rapid filtration of biological suspensions, precipitate collection, and membrane filtrations. 
<h2 dir="ltr">Specifications Context</h2>
 Globe Scientific borosilicate glass Erlenmeyer flasks are manufactured under ISO 9001:2015 quality standards from borosilicate glass conforming to ASTM E438 Type I (USP Type I). Autoclave tolerance: 121&deg;C for standard sterilisation cycles; do not autoclave fully sealed screw-cap flasks &mdash; loosen one quarter-turn to allow steam pressure equalisation. Common volumes: 25mL to 5,000mL (standard); filter flasks typically 125mL to 4,000mL. As of June 2026, MBP stocks all five Erlenmeyer flask formats from Globe Scientific. 
By using these industrial-grade conical flasks, you may spend more time on your actual research and require fewer replacements. Get a quote today by <a href="https://mbpinc.net/contact-us" style="color: #236fa1;">contacting the MBP Team.</a>

Glass Erlenmeyer Flasks

Flyer

Globe Glass - Catalog

Brochure

Globe Glass Erlenmeyer Flasks - Heavy Duty Specifications

Globe Glass Heavy Duty Narrow Mouth Erlenmeyer Flasks

Globe Glass Heavy Duty Narrow Mouth Erlenmeyer Flasks by Globe Scientific are ASTM E438 Type I Class A 3.3 borosilicate, ASTM E1406 Type I heavy-duty wall for vacuum filtration. Available in 250mL, 500mL, 1000mL, 2000mL, and 4000mL.

Manufacture

Flask, Erlenmeyer, Globe Glass, 250mL, Heavy Duty, Narrow Mouth, Dual Graduations, ASTM E1406, 6/Box, CS/18

Flask, Erlenmeyer, Globe Glass, 500mL, Heavy Duty, Narrow Mouth, Dual Graduations, ASTM E1406, 1/Box, CS/6

Flask, Erlenmeyer, Globe Glass, 1000mL, Heavy Duty, Narrow Mouth, Dual Graduations, ASTM E1406, 1/Box, CS/6

Flask, Erlenmeyer, Globe Glass, 2000mL, Heavy Duty, Narrow Mouth, Dual Graduations, ASTM E1406, 1/Box, CS/12

Flask, Erlenmeyer, Globe Glass, 4000mL, Heavy Duty, Narrow Mouth, Dual Graduations, ASTM E1406, 1/Box, CS/6

Griffin Style Beaker

<h2 data-section-id="1sg16rn" data-start="114" data-end="148">What Are Griffin Style Beakers?</h2>
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Griffin style beakers are low-form cylindrical vessels with a height-to-diameter ratio of approximately 1.0:1.4 &mdash; shorter and wider than tall-form (Berzelius) beakers &mdash; designed for stable stirring on a magnetic stir plate, heating on a hot plate, and general reagent handling on the bench. The flat base provides maximum contact with hot-plate surfaces for uniform heating; the wide opening allows easy reagent addition, thermometer insertion, and stirring access. Borosilicate glass Griffin beakers at MBP conform to ASTM E960. Griffin style is the default beaker for most bench workflows; choose tall-form (Berzelius) only when a tall liquid column is required for distillation or titration setups.
&nbsp;
<h2 dir="ltr">&nbsp;What you will find:</h2>
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<ul>
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Versatile volume ranges from 10mL to 5000mL for any scale.
</li>
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Molded Graduations for permanent, wear-resistant scale visibility.
</li>
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Printed Graduations providing high-contrast markings for quick reading.
</li>
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Durable Griffin Style design with a flat base and easy-pour spout.
</li>
<li dir="ltr" aria-level="1">
Case Pack options for high-volume laboratory stocking.
</li>
<li dir="ltr" aria-level="1">
High-quality borosilicate glassware compatible with various chemicals.
</li>
</ul>
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<h2 data-section-id="tdvfh2" data-start="857" data-end="895">How to Choose Griffin Style Beakers</h2>
&nbsp;
Size Selection
MBP stocks Griffin style beakers from 10 mL to 5,000 mL. Common bench sizes include 50 mL and 100 mL for small-scale reactions and staining, 250 mL for routine buffer work, 1,000 mL for media or reagent preparation, and 2,000 mL for larger-volume batches. As a general guideline, beakers should be filled to no more than two-thirds of their nominal capacity when heating to allow for liquid expansion and prevent boil-over.
Graduation: Molded vs. Printed
Molded graduations are permanently embossed into the glass and are resistant to solvents, autoclaving, and repeated cleaning cycles. Printed dual-scale graduations provide higher contrast for quick bench reading but may fade over time with repeated autoclaving or exposure to aggressive solvents.
Borosilicate Glass
Griffin style beakers at MBP are made from borosilicate glass, which is resistant to acids, bases, alcohols, and most organic solvents, and is autoclavable at 121&deg;C. Its low thermal expansion coefficient (~3.3&times;10⁻⁶/K) helps prevent cracking during rapid heating or cooling.
Case Pack Availability
High-volume laboratories can order Griffin style beakers in case packs to reduce per-unit cost. Case pricing varies by size and is available upon request from MBP.
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<h2 data-section-id="1jl751w" data-start="2883" data-end="2908">Specifications Context</h2>
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Griffin style (low form) glass beakers conform to ASTM E960 with graduation accuracy of &plusmn;5% of total capacity. The low height-to-diameter ratio provides greater stability than tall-form beakers on stirrers and hot plates. Borosilicate glass is inert to HCl, H₂SO₄, HNO₃, CH₃COOH, NaOH, acetone, ethanol, methanol, and xylene. Hydrofluoric acid (HF) must not be used with glass as it dissolves silica-based materials. These beakers are suitable for autoclaving at 121&deg;C (wet cycle) and dry-heat sterilisation up to 500&deg;C.
<a href="https://mbpinc.net/contact-us" style="color: #236fa1; text-decoration: underline;">Get a quick quote from the friendly staff at MBP</a> right now to keep your workflow running smoothly.

Griffin Style Beakers

GlassGuard Packaging - Brochure

Globe Glass Griffin Style Beakers Specifications

Globe Glass Low Form Griffin Style Beakers

The Globe Glass Low Form Griffin Style Beaker by Globe Scientific is a low-form Griffin-style borosilicate glass beaker manufactured from 3.3 borosilicate glass meeting ASTM E960 specifications. Featuring uniform wall thickness, beaded rims for chipping resistance, a formed pour spout, and graduated volume markings, these beakers are the standard-format vessel for heating, mixing, and transferring laboratory reagents. Available in 13 sizes from 10mL (8010010) to 4000mL (8014000).

Beaker, Globe Glass, 10mL, Low Form Griffin Style, ASTM E960, 12/Box, CS/48

Beaker, Globe Glass, 20mL, Low Form Griffin Style, Dual Graduations, ASTM E960, 12/Box, CS/48

Beaker, Globe Glass, 30mL, Low Form Griffin Style, Dual Graduations, ASTM E960, 12/Box, CS/48

Beaker, Globe Glass, 50mL, Low Form Griffin Style, Dual Graduations, ASTM E960, 12/Box, CS/48

Beaker, Globe Glass, 100mL, Low Form Griffin Style, Dual Graduations, ASTM E960, 12/Box, CS/48

Beaker, Globe Glass, 150mL, Low Form Griffin Style, Dual Graduations, ASTM E960, 12/Box, CS/48

Beaker, Globe Glass, 250mL, Low Form Griffin Style, Dual Graduations, ASTM E960, 12/Box, CS/48

Beaker, Globe Glass, 400mL, Low Form Griffin Style, Dual Graduations, ASTM E960, 12/Box, CS/48

Beaker, Globe Glass, 600mL, Low Form Griffin Style, Dual Graduations, ASTM E960, 6/Box, CS/36

Beaker, Globe Glass, 800mL, Low Form Griffin Style, Dual Graduations, ASTM E960, 6/Box, CS/24

Beaker, Globe Glass, 1000mL, Low Form Griffin Style, Dual Graduations, ASTM E960, 6/Box, CS/24

Beaker, Globe Glass, 2000mL, Low Form Griffin Style, Dual Graduations, ASTM E960, 4/Box, CS/8

Beaker, Globe Glass, 4000mL, Low Form Griffin Style, Dual Graduations, ASTM E960, 1/Box, CS/6

Glass Media Bottle

<h2>What Are Glass Media Bottles?</h2>
 Glass media bottles are borosilicate screw-cap storage vessels designed for preparing, autoclaving, and dispensing laboratory culture media, biological buffers, and liquid reagents. Unlike Erlenmeyer flasks with foam closures, media bottles have threaded screw caps providing a leak-proof seal for transport, dispensing, and long-term storage. Globe Scientific glass media bottles at MBP are manufactured from borosilicate glass (ASTM E438 Type I / USP Type I), supplied with polypropylene (PP) screw caps, and are autoclavable at 121&deg;C. Choose clear borosilicate for most reagents; choose amber glass for light-sensitive compounds such as photodegradable stains, bilirubin standards, certain vitamin solutions, and riboflavin. 
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<h2 dir="ltr">What you will find:</h2>
&nbsp;
<ul>
<li dir="ltr" aria-level="1">
Borosilicate glass media bottles
</li>
<li dir="ltr" aria-level="1">
Autoclavable media storage bottles
</li>
<li dir="ltr" aria-level="1">
Amber glass media bottles for light-sensitive liquids
</li>
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Graduated glass storage bottles
</li>
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Leakproof laboratory media bottles
</li>
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Wide-mouth glass reagent bottles
</li>
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Glass bottles with pouring rings
</li>
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Sterile-ready glass media containers
</li>
</ul>
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<h2>How to Choose Glass Media Bottles</h2>
 Clear vs. Amber Glass Clear borosilicate media bottles are appropriate for reagents that are not UV- or visible-light-sensitive. Amber glass bottles filter light below approximately 450nm, protecting light-degradable contents from photodegradation. Common applications for amber storage include: ethidium bromide solutions, crystal violet stain, bilirubin calibrators, vitamin B2 (riboflavin) solutions, and other photosensitive reagents. Choose amber glass when the reagent specification or manufacturer's instructions recommend light protection. Wide-Mouth vs. Standard Neck Standard-neck media bottles are suited for liquid-to-liquid transfers and dispensing. Wide-mouth media bottles allow easier filling with solid powder media (agar, broth powder, salt), scooping viscous materials, and thorough cleaning &mdash; preferred for culture media preparation where media powder is dissolved directly in the bottle. Graduated vs. Non-Graduated Graduated media bottles have approximate volume markings for guidance during media preparation without a separate measuring cylinder. Markings are typically &plusmn;5% and are not certified for precision volumetric work. Cap and Pouring Ring PP screw caps are autoclavable at 121&deg;C. Loosen caps one quarter-turn before autoclaving to allow steam pressure equalisation. Some formats include a pouring ring insert on the neck interior that prevents liquid from running down the outside of the bottle when dispensing.
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<h2>Specifications Context</h2>
 Globe Scientific glass media bottles are manufactured from borosilicate glass conforming to ASTM E438 Type I and USP Type I, providing chemical resistance to acids, bases, alcohols, and most organic solvents. PP screw caps are autoclavable at 121&deg;C; verify PP compatibility with any strong oxidising acid or halogenated solvent before use. Amber glass attenuates light below ~450nm, protecting photosensitive contents during storage. MBP stocks clear and amber glass media bottles from Globe Scientific for labs in the US, Canada, and worldwide.
Get a quote today from the <a href="https://mbpinc.net/contact-us" style="color: #236fa1;">MBP Team</a> for your lab requirements.

Glass Media Bottles

Globe Glass Media Bottles Specifications

Globe Glass Media Bottles

Globe Scientific Borosilicate 3.3 glass media bottles, wide mouth, drip-free pour ring, dual grad marks. GL32 on 50 mL (8100050, CS/40); GL45 on 100 mL–10,000 mL (8100100–810010K). Autoclavable PE screw cap. 8 volumes.

Bottle, Media, Globe Glass, 50mL, GL32 Screw Cap, Dual Graduations, 10/Box, CS/40

Bottle, Media, Globe Glass, 100mL, GL45 Screw Cap, Dual Graduations, 10/Box, CS/20

Bottle, Media, Globe Glass, 250mL, GL45 Screw Cap, Dual Graduations, 10/Box, CS/20

Bottle, Media, Globe Glass, 500mL, GL45 Screw Cap, Dual Graduations, 10/Box

Bottle, Media, Globe Glass, 1000mL, GL45 Screw Cap, Dual Graduations, 10/Box

Bottle, Media, Globe Glass, 2000mL, GL45 Screw Cap, Dual Graduations, 10/Box

Bottle, Media, Globe Glass, 5000mL, GL45 Screw Cap, Dual Graduations, 1/Box

Bottle, Media, Globe Glass, 10000mL, GL45 Screw Cap, Dual Graduations, 1/Box

Globe Glass Amber Media Bottles Specifications

Globe Glass Media Bottles, Amber Color

The Globe Glass Media Bottles, Amber Color by Globe Scientific are ASTM E438 Type I 3.3 borosilicate amber glass media storage bottles with autoclavable GL-thread PP screw caps (GL32 for 50 mL, GL45 for 100–2000 mL), dual-scale enamel graduations, and GlassGuard packaging; ISO 9001/17025. Available in 50 mL (8110050), 100 mL (8110100), 250 mL (8110250), 500 mL (8110500), 1000 mL (8111000), and 2000 mL (8112000); 10/box.

Bottle, Amber Media, Globe Glass, 50mL, GL32 Screw Cap, Dual Graduations, 10/Box

Bottle, Amber Media, Globe Glass, 100mL, GL45 Screw Cap, Dual Graduations, 10/Box

Bottle, Amber Media, Globe Glass, 250mL, GL45 Screw Cap, Dual Graduations, 10/Box

Bottle, AmberMedia, Globe Glass, 500mL, GL45 Screw Cap, Dual Graduations, 10/Box

Bottle, Amber Media, Globe Glass, 1000mL, GL45 Screw Cap, Dual Graduations, 10/Box

Bottle, Amber Media, Globe Glass, 2000mL, GL45 Screw Cap, Dual Graduations, 10/Box

Globe Glass Narrow Mouth Erlenmeyer Flasks

The Globe Glass Narrow Mouth Erlenmeyer Flasks by Globe Scientific are ASTM E1404-compliant 3.3 borosilicate (ASTM E438 Type I) Erlenmeyer flasks with dual white enamel graduated scales, reinforced beaded rims, GlassGuard packaging, and ISO 9001/17025 certification. Available in 8 volumes: 8400025 (25 mL), 8400050 (50 mL), 8400125 (125 mL), 8400250 (250 mL), 8400300 (300 mL), 8400500 (500 mL), 8401000 (1000 mL), and 8402000 (2000 mL).

Flask, Erlenmeyer, Globe Glass, 25mL, Narrow Mouth, Dual Graduations, ASTM E1404, 12/Box, CS/48

Flask, Erlenmeyer, Globe Glass, 50mL, Narrow Mouth, Dual Graduations, ASTM E1404, 12/Box, CS/48

Flask, Erlenmeyer, Globe Glass, 125mL, Narrow Mouth, Dual Graduations, ASTM E1404, 12/Box, CS/48

Flask, Erlenmeyer, Globe Glass, 250mL, Narrow Mouth, Dual Graduations, ASTM E1404, 12/Box, CS/48

Flask, Erlenmeyer, Globe Glass, 300mL, Narrow Mouth, Dual Graduations, ASTM E1404, 12/Box, CS/48

Flask, Erlenmeyer, Globe Glass, 500mL, Narrow Mouth, Dual Graduations, ASTM E1404, 6/Box, CS/36

Flask, Erlenmeyer, Globe Glass, 1000mL, Narrow Mouth, Dual Graduations, ASTM E1404, 6/Box, CS/24

Flask, Erlenmeyer, Globe Glass, 2000mL, Narrow Mouth, Dual Graduations, ASTM E1404, 4/Box, CS/8

Globe Glass Screw Cap Erlenmeyer Flasks

The Globe Glass Screw Cap Erlenmeyer Flask by Globe Scientific is a borosilicate glass Erlenmeyer flask with a PTFE-lined GL 45 polyethylene screw cap meeting ASTM E1404 specifications. Reinforced beaded rims resist chipping, dual metric-scale graduations allow convenient volume reading from either side, and a large white marking area accommodates permanent marker or label identification. Available in 250mL (8420250), 500mL (8420500), 1000mL (8421000), and 2000mL (8422000), with a GL 45 screw cap providing a solvent-resistant, sealable closure.

Flask, Erlenmeyer, Globe Glass, 250mL, Screw Cap, Dual Graduations, ASTM E1404, 6/Box, CS/12

Flask, Erlenmeyer, Globe Glass, 500mL, Screw Cap, Dual Graduations, ASTM E1404, 6/Box

Flask, Erlenmeyer, Globe Glass, 1000mL, Screw Cap, Dual Graduations, ASTM E1404, 4/Box

Flask, Erlenmeyer, Globe Glass, 2000mL, Screw Cap, Dual Graduations, ASTM E1404, 1/Box, CS/2

Serological Pipettes

<h2 dir="ltr"> What Are Serological Pipettes?</h2>
 Serological pipettes are calibrated, graduated, sterile polystyrene disposable pipettes used with a motorised pipette controller to transfer measured volumes of liquid in the 1&ndash;100 mL range. They are the primary tool for cell culture media transfer, buffer preparation, reagent dispensing in volumes above 1 mL, and serial dilutions requiring volumetric accuracy in the millilitre range. They differ from aspirating pipettes &mdash; which have no graduations and are used only for vacuum-assisted waste removal &mdash; and from microcentrifuge tubes, which are not dispensing instruments. Serological pipettes are the correct format for any measured liquid transfer &ge;1 mL in cell culture or reagent preparation; pair them with a motorised pipette controller for safe, ergonomic operation. 
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<h2 dir="ltr">What you will find:</h2>
&nbsp;
<ul>
<li dir="ltr" role="presentation">1 mL to 50 mL Serological Pipettes &ndash; Standard range for routine and high-volume liquid transfer</li>
<li dir="ltr" role="presentation">Glass Serological Pipettes &ndash; Reusable options for solvent resistance and durability</li>
<li dir="ltr" role="presentation">Sterile Serological Pipettes &ndash; Gamma-sterilized for aseptic laboratory use</li>
<li dir="ltr" role="presentation">Non-Sterile Serological Pipettes &ndash; Cost-effective option for general applications</li>
<li dir="ltr" role="presentation">Graduated Serological Pipettes &ndash; For accurate volume measurement and dispensing </li>
</ul>
&nbsp;
<h2>How to Choose Serological Pipettes</h2>
 Volume: Standard Sizes and ISO 7550 Colour Coding ISO 7550 assigns a specific colour code to each serological pipette volume: 1 mL = red; 2 mL = yellow; 5 mL = blue; 10 mL = orange; 25 mL = green; 50 mL = purple (pink/violet depending on supplier). Colour coding allows quick visual volume identification when multiple sizes are in use simultaneously in a BSC. Packaging: Individual Wrap vs Bulk Individually wrapped sterile pipettes are required for cell culture, molecular biology, and aseptic technique. Plastic/plastic peel-open packaging eliminates paper particulate from paper/plastic wrappers &mdash; important in sensitive cell culture applications and for RNA work. Bulk-packed (canister or bag) formats are cost-effective for non-sterile applications such as buffer preparation and reagent dispensing in fume hoods. Construction: 1-Piece vs 3-Piece 1 mL, 2 mL, and 5 mL serological pipettes are typically one-piece moulded polystyrene constructions. 10 mL, 25 mL, and 50 mL pipettes use 3-piece ultrasonically welded construction (Globe Scientific) for the body-to-cone and body-to-cap joints &mdash; essential for the structural integrity of larger formats under aspiration vacuum. Tip and Graduation Features Negative graduations (markings above the nominal maximum) allow volumes slightly above nominal to be read. Fine-point tips with slow drip-off improve pipetting accuracy during cell culture media transfers. Some brands offer Wobble-not-style pipettes with reduced barrel flex for easier single-hand operation. Filter Plug Material Cotton filter plugs are standard; synthetic plugs (polyethylene or polypropylene) are preferred when processing organic solvents or any media that might wick through a cotton plug.
<h2 dir="ltr"> Compare Serological Pipette Volumes </h2>
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<ul>
<li>1 mL &ndash; Red ISO 7550 colour, 1-piece construction, 0.01 mL graduations; used for small-volume media transfer.</li>
<li>2 mL &ndash; Yellow ISO 7550 colour, 1-piece construction, 0.1 mL graduations; used for buffer preparation.</li>
<li>5 mL &ndash; Blue ISO 7550 colour, 1-piece construction, 0.1 mL graduations; used for media preparation and dilutions.</li>
<li>10 mL &ndash; Orange ISO 7550 colour, 3-piece construction, 0.1 mL graduations; used for flask media changes.</li>
<li>25 mL &ndash; Green ISO 7550 colour, 3-piece construction, 0.5 mL graduations; used for bulk media dispensing.</li>
<li>50 mL &ndash; Purple ISO 7550 colour, 3-piece construction, 1.0 mL graduations; used for large flask media changes.</li>
</ul>
<h2 dir="ltr"> Specifications Context</h2>
 Serological pipettes are manufactured from optically clear virgin polystyrene in Class 100,000 cleanroom conditions. Sterility: individually wrapped pipettes are EO-sterilised to SAL 10⁻⁶; non-pyrogenic, non-cytotoxic, DNase-free, and RNase-free per lot. ISO 7550 defines colour coding for serological pipettes; many US suppliers follow this standard, though it is not universally mandated. Calibrated to deliver (TD) with blow-out (marked with a double band or 'TD' marking) &mdash; all liquid must be expelled from the tip for accurate delivery. Globe Scientific, Nest Scientific, and Falcon remain the dominant serological pipette brands in North American cell culture labs.&nbsp; 
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Improve consistency and reduce handling variation with reliable serological pipette solutions. Request a quote from <a href="https://mbpinc.net/contact-us">the expert team at Molecular Biology Products Inc. (MBP).</a>

Globe Glass Serological Pipettes - Class B Specifications

Globe Glass Serological Pipettes - Class A

Globe Scientific Globe Glass™ Class A Serological Pipettes (ASTM E1044): borosilicate glass, amber enameled graduations, color-coded bands, TD delivery, GlassGuard™ packaging, 6/box CS/12. Eight volumes 0.1–25 mL (SKUs 8510000 through 8510025).

Pipette, Serological, Globe Glass, Reusable, 0.1mL, To Deliver (TD), 0.01 Graduations, White Band, ASTM E1044, 6/Box, CS/12

Pipette, Serological, Globe Glass, Reusable, 0.2mL, To Deliver (TD), 0.01 Graduations, Black Band, ASTM E1044, 6/Box, CS/12

Pipette, Serological, Globe Glass, Reusable, 1mL, To Deliver (TD), 0.1 Graduations, Red Band, ASTM E1044, 6/Box, CS/12

Pipette, Serological, Globe Glass, Reusable, 1mL, To Deliver (TD), 0.01 Graduations, Yellow Band, ASTM E1044, 6/Box, CS/12

Pipette, Serological, Globe Glass, Reusable, 2mL, 0.1 Graduations, Green Band, ASTM E1044, 6/Box, CS/12

Pipette, Serological, Globe Glass, Reusable, 5mL, To Deliver (TD), 0.1 Graduations, Blue Band, ASTM E1044, 6/Box, CS/12

Pipette, Serological, Globe Glass, Reusable, 10mL, To Deliver (TD), 0.1 Graduations, Orange Band, ASTM E1044, 6/Box, CS/12

Pipette, Serological, Globe Glass, Reusable, 25mL, To Deliver (TD), 0.1 Graduations, White Band, ASTM E1044, 6/Box, CS/12

Globe Glass Serological Pipettes - Class A Specifications

Globe Glass Serological Pipettes, Class A (TD) by Globe Scientific are reusable borosilicate glass pipettes, 6/box CS/12, color-banded by volume. Available as 8500001 (1 mL, 0.1 grad, red), 8500001A (1 mL, 0.01 grad, yellow), 8500002 (2 mL, green), 8500005 (5 mL, blue), 8500010 (10 mL, orange), and 8500025 (25 mL, white).

Pipette, Serological, Globe Glass, Reusable, 1mL, Class A, To Deliver (TD), 0.1 Graduations, Red Band, 6/Box, CS/12

Pipette, Serological, Globe Glass, Reusable, 1mL, Class A, To Deliver (TD), 0.01 Graduations, Yellow Band, 6/Box, CS/12

Pipette, Serological, Globe Glass, Reusable, 2mL, Class A, To Deliver (TD), 0.1 Graduations, Green Band, 6/Box, CS/12

Pipette, Serological, Globe Glass, Reusable, 5mL, Class A, To Deliver (TD), 0.1 Graduations, Blue Band, 6/Box, CS/12

Pipette, Serological, Globe Glass, Reusable, 10mL, Class A, To Deliver (TD), 0.1 Graduations, Orange Band, 6/Box, CS/12

Pipette, Serological, Globe Glass, Reusable, 25mL, Class A, To Deliver (TD), 0.1 Graduations, White Band, 6/Box, CS/12

Globe Glass Square Media Bottles Specifications

Globe Glass Square Media Bottles

The Globe Glass Square Media Bottles by Globe Scientific are wide-mouth ASTM E438 Type I borosilicate 3.3 glass bottles with GL80 autoclavable PP cap and pouring ring; square footprint for shelf efficiency; 50 mL enamel graduations; pack of 10 with GlassGuard. Available in 500 mL (8120500), 1000 mL (8121000), and 2000 mL (8122000).

Bottle, Square Media, Wide Mouth, Globe Glass, 500mL, GL80 Screw Cap, 10/Box

Bottle, Square Media, Wide Mouth, Globe Glass, 1000mL, GL80 Screw Cap, 10/Box

Bottle, Square Media, Wide Mouth, Globe Glass, 2000mL, GL80 Screw Cap, 10/Box

Volumetric Flasks

<h2 dir="ltr">What Are Volumetric Flasks? </h2>
 Volumetric flasks are precision-calibrated glass vessels with a flat-bottomed pear-shaped body, a long, narrow neck, and a single etched or ceramic-printed calibration mark at the neck. They hold a precisely defined volume of liquid at a specified temperature (20&deg;C) &mdash; used to prepare standard solutions of exactly known molarity or concentration, dilute samples to a defined final volume for analytical work, and make reference standards in analytical chemistry and quality control. Globe Scientific volumetric flasks at MBP are manufactured from borosilicate glass conforming to ASTM E288 and ISO 1042, with Class A (tightest tolerance) and Class B (2&times; Class A tolerance) options. Choose Class A volumetric flasks for analytical chemistry, standard solution preparation, and regulated QC work; choose Class B for routine dilutions and non-critical volumetric preparation. 
&nbsp;
<h2 dir="ltr">What you will find</h2>
&nbsp;
<ul>
<li dir="ltr" aria-level="1">
Class A volumetric flasks for the highest precision analytical work.
</li>
<li dir="ltr" style="color: #000000;" aria-level="1">
Class B glassware for routine laboratory liquid measurements.
</li>
<li dir="ltr" style="color: #000000;" aria-level="1">
Wide-mouth flasks for easy filling and mixing of solid solutes.
</li>
</ul>
<h2 dir="ltr"> How to Choose Volumetric Flasks</h2>
 Class A vs. Class B Class A volumetric flasks conform to ASTM E288 / ISO 1042 Class A tolerances &mdash; e.g., &plusmn;0.10mL on a 100mL flask, &plusmn;0.30mL on a 500mL flask, &plusmn;0.40mL on a 1,000mL flask. Class B flasks have tolerances exactly twice as wide as Class A. Class A flasks may include individual calibration certificates (traceable to NIST) and batch Certificates of Conformance for regulated laboratory environments. Wide-Mouth vs. Standard Standard volumetric flasks have a narrow neck opening suited for liquid-to-liquid dilution. Wide-mouth volumetric flasks have a larger neck opening designed for dissolving solid solutes &mdash; pellets, powders, and slow-dissolving materials &mdash; where a narrow neck would cause solid-to-wall contact and residue loss during transfer. Size and Fill Procedure Common analytical sizes: 25mL, 50mL, 100mL, 250mL, 500mL, 1,000mL. Correct fill technique: dissolve solute in a small volume of solvent first in a separate beaker, cool to 20&deg;C, transfer quantitatively to the flask, then add solvent gradually to within a few mL of the mark, mix, then make up to the mark dropwise. Stoppers: Glass vs. Polyethylene Glass ground-glass stoppers are chemically inert for most reagents. Polyethylene (PE) caps are recommended for strong base solutions (NaOH) or HF &mdash; reagents that can etch glass or cause stoppers to seize in the neck. 
<h2 dir="ltr"> Specifications Context</h2>
 Globe Scientific volumetric flasks are manufactured from borosilicate glass 3.3 conforming to ASTM E288 and ISO 1042. Calibrations are specified at 20&deg;C &mdash; temperature deviations shift the enclosed volume due to glass and liquid thermal expansion. Volumetric flasks should not be used as heating vessels; heat causes volume drift from the calibrated mark. Class A tolerance for a 250mL flask is &plusmn;0.15mL; for a 1,000mL flask, &plusmn;0.40mL. MBP stocks Class A, Class B, and wide-mouth formats from Globe Scientific for labs worldwide.
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Globe Glass Volumetric Flasks - Class A Specifications

Globe Glass Volumetric Flasks, Class A

The Globe Glass Volumetric Flasks, Class A by Globe Scientific are TC-calibrated Class A borosilicate glass volumetric flasks with glass pennyhead stoppers, diamond-etched graduation marks, and individual batch calibration certificates. ASTM E237 (1–2 mL) and ASTM E288 (5–2000 mL). Available in 12 volumes: 8200001 (1 mL), 8200002 (2 mL), 8200005 (5 mL), 8200010 (10 mL), 8200025 (25 mL), 8200050 (50 mL), 8200100 (100 mL), 8200200 (200 mL), 8200250 (250 mL), 8200500 (500 mL), 8201000 (1000 mL), and 8202000 (2000 mL).

Flask, Volumetric , Globe Glass, 1mL, Class A, To Contain (TC), ASTM E237, 6/Box, CS/12

Flask, Volumetric , Globe Glass, 2mL, Class A, To Contain (TC), ASTM E237, 6/Box, CS/12

Flask, Volumetric , Globe Glass, 5mL, Class A, To Contain (TC), ASTM E288, 6/Box, CS/12

Flask, Volumetric , Globe Glass, 10mL, Class A, To Contain (TC), ASTM E288, 6/Box, CS/12

Flask, Volumetric , Globe Glass, 25mL, Class A, To Contain (TC), ASTM E288, 6/Box, CS/12

Flask, Volumetric , Globe Glass, 50mL, Class A, To Contain (TC), ASTM E288, 6/Box, CS/12

Flask, Volumetric , Globe Glass, 100mL, Class A, To Contain (TC), ASTM E288, 6/Box, CS/12

Flask, Volumetric , Globe Glass, 200mL, Class A, To Contain (TC), ASTM E288, 6/Box, CS/12

Flask, Volumetric , Globe Glass, 250mL, Class A, To Contain (TC), ASTM E288, 6/Box, CS/12

Flask, Volumetric , Globe Glass, 500mL, Class A, To Contain (TC), ASTM E288, 6/Box, CS/12

Flask, Volumetric , Globe Glass, 1000mL, Class A, To Contain (TC), ASTM E288, 1/Box, CS/6

Flask, Volumetric , Globe Glass, 2000mL, Class A, To Contain (TC), ASTM E288, 1/Box, CS/4

Globe Glass Volumetric Flasks, Class B

Globe Scientific Class B borosilicate volumetric flasks, ASTM E288, TC, diamond-etched markings, glass pennyhead stopper. Nine volumes: 10 mL (8250010, CS/12) through 2,000 mL (8252000, CS/4). 6/box (10–500 mL) or 1/box (1–2 L).

Flask, Volumetric , Globe Glass, 10mL, Class B, To Contain (TC), ASTME288, 6/Box, CS/12

Flask, Volumetric , Globe Glass, 25mL, Class B, To Contain (TC), ASTME288, 6/Box, CS/12

Flask, Volumetric , Globe Glass, 50mL, Class B, To Contain (TC), ASTME288, 6/Box, CS/12

Flask, Volumetric , Globe Glass, 100mL, Class B, To Contain (TC), ASTME288, 6/Box, CS/12

Flask, Volumetric , Globe Glass, 200mL, Class B, To Contain (TC), ASTME288, 6/Box, CS/12

Flask, Volumetric , Globe Glass, 250mL, Class B, To Contain (TC), ASTME288, 6/Box, CS/12

Flask, Volumetric , Globe Glass, 500mL, Class B, To Contain (TC), ASTME288, 6/Box, CS/12

Flask, Volumetric , Globe Glass, 1000mL, Class B, To Contain (TC), ASTME288, 1/Box, CS/6

Flask, Volumetric , Globe Glass, 2000mL, Class B, To Contain (TC), ASTME288, 1/Box, CS/4

Globe Glass Wide Mouth Erlenmeyer Flasks

Globe Glass Wide Mouth Erlenmeyer Flasks by Globe Scientific are ASTM E438 Type I, Class A 3.3 borosilicate, ASTM E1404, dual-scale white enamel graduations. Available in 125mL, 250mL, 500mL, and 1000mL.

Flask, Erlenmeyer, Globe Glass, 125mL, Wide Mouth, Dual Graduations, ASTM E1404, 12/Box, CS/48

Flask, Erlenmeyer, Globe Glass, 250mL, Wide Mouth, Dual Graduations, ASTM E1404, 12/Box, CS/48

Flask, Erlenmeyer, Globe Glass, 500mL, Wide Mouth, Dual Graduations, ASTM E1404, 6/Box, CS/36

Flask, Erlenmeyer, Globe Glass, 1000mL, Wide Mouth, Dual Graduations, ASTM E1404, 6/Box, CS/24

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