Test Tubes

<h2 dir="ltr">What are Test Tubes?</h2>
 Test tubes for laboratory use are open-ended, cylindrical glass or plastic tubes used to hold, mix, incubate, and heat liquid and solid samples across a broad range of applications: bacteriological culture, tissue culture, clinical chemistry, serological assays, immunology, and general sample processing. Choose borosilicate glass for reusable, high-temperature, or chemically demanding applications; choose polystyrene disposable 12&times;75 mm tubes for flow cytometry and colorimetric assays; choose polypropylene capped tubes for microbial culture with anaerobic or gas-generating organisms.
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<h2 dir="ltr">What you will find:</h2>
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<li dir="ltr" aria-level="1">Glass test tubes in diverse formats for heating and chemical reaction workflows</li>
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Plastic polypropylene test tubes for routine laboratory use
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Graduated tubes for quick and easy volume estimation
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Conical and round-bottom tube formats for different applications
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Sterile disposable test tubes for clinical and diagnostic work
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Heat-resistant tubes for incubation and controlled heating steps
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<h2 dir="ltr">How to Choose Test Tubes</h2>
 Material: Glass vs. Polypropylene vs. Polystyrene Borosilicate glass 3.3 (ASTM E438 Type I, Class B) test tubes withstand direct flame, autoclave sterilization at 121 &deg;C, and most solvents, acids, and bases. They are reusable and autoclavable, making them cost-effective over high-volume laboratory runs. Polystyrene (PS) disposable tubes offer outstanding optical clarity for flow cytometry (FACS), cell counting, and OD-based colorimetric assays, but cannot be autoclaved and should not be used with aromatic solvents or strong acids. Polypropylene (PP) tubes are chemically resistant, autoclavable, and available with screw caps for anaerobic culture or gas-generating reactions. Rimmed vs. Rimless Rimless test tubes (fire-polished ends) allow easier insertion of rubber or silicone stoppers and are preferred for plugging with cotton wool for microbial culture. Rimmed tubes have a flared lip that facilitates pouring and is compatible with spring-metal tube closures. Confirm your closure type before ordering in bulk. Size and Volume The most common test tube dimensions in clinical and research labs: 12&times;75 mm: ~5 mL capacity; standard for flow cytometry, FACS, serology 13&times;100 mm: ~10 mL; general culture and chemistry 16&times;100 mm: ~14 mL; culture and chemistry 16&times;125 mm: ~17 mL; microbiological culture 18&times;150 mm: ~25 mL; larger-volume digests and culture Wall thickness of 1.2 mm (light wall, borosilicate 3.3) is the standard for general lab use; heavy-wall versions are used for digestions and applications involving vacuum or pressure. Sterile vs. Non-Sterile Sterile borosilicate glass culture tubes (individually wrapped or bulk-sterilized) are required for microbial culture, cell culture, and any application where contamination would invalidate the result. Non-sterile tubes are adequate for chemistry, spectroscopy, and other abiotic applications. Disposable PS tubes from Corning (PYREX&trade;) and Globe Scientific are supplied sterile or non-sterile; confirm the specification on the lot certificate. 
<h2 dir="ltr"> Specifications Context</h2>
 Borosilicate glass 3.3 test tubes have a linear thermal expansion coefficient of 3.3 &times; 10⁻⁶ K⁻&sup1;, providing resistance to thermal shock from room temperature to 300 &deg;C (direct flame) and from 0 to 121 &deg;C (autoclave cycles). Light-wall tubes (1.2 mm uniform wall thickness) provide the standard for general laboratory use; heavy-wall variants (2.0 mm) are used for digestion vessels and pressurized applications. Corning PYREX&trade; disposable round-bottom rimless glass tubes for tissue culture conform to ASTM standards and are the reference format for bacteriological serology and cell wash procedures. MBP supplies Globe Scientific and NEST Scientific test tube lines for research and clinical labs across the USA, Canada, and worldwide. &nbsp; 
If you&rsquo;re choosing between glass and plastic or trying to match the right size to your workflow, it&rsquo;s worth getting that part right early &mdash; it makes everything downstream smoother and a lot less messy. <a href="https://mbpinc.net/contact-us">Contact the MBP team now!</a>

110415-Group-Tubes, Caps & Racks Catalog

110415-Group-TDS-110415-110445

13x100mm Plastic Test Tubes

110415 by Globe Scientific are 13 × 100&#160;mm, 8&#160;mL polystyrene culture tubes rated to 1,500&#160;RPM, sold in cases of 1,000. Also available in polypropylene (110445, 3,000&#160;RPM, autoclavable, freezable) for higher-force and sterilization applications. Both formats accept dual-position snap caps for aerobic or anaerobic storage.

Manufacture

Test Tube, 13 x 100mm (8mL), PS, 1000/Bag, CS/1000

Test Tube, 13 x 100mm (7mL), PS, Bulk, 3000/Case, CS/3000

Test Tube, 13 x 100mm (8mL), PP, CS/1000

Test Tube, 13 x 100mm (7mL), PP, Bulk, 3000/Case, CS/3000

111010-Group-Tubes, Caps & Racks Catalog

111010-Group-TDS-111041

16x100 Plastic Test Tubes

111010 by Globe Scientific is a 16 x 100mm, 12 mL polystyrene test tube with rim and round bottom, graduated at 2.5, 5, and 10 mL, rated to 1,500 RPM. Supplied 500/bag, 4 bags/case (2,000/case). For applications above 1,500 RPM or requiring autoclave compatibility, Globe Scientific offers PP variants (SKU 111040/111041) rated to 3,000 RPM.

Test Tube, 16 x 100mm (12mL), PS, with Rim, Graduated at 2.5, 5 & 10mL, 500/Bag, 4 Bags/Unit, CS/2000

Test Tube, 16 x 100mm (12mL), PS, No Rim, 500/Bag, 4 Bags/Unit, CS/2000

Test Tube, 16 x 100mm (12mL), PP, with Rim, Graduated at 2.5, 5 & 10mL, CS/2000

Test Tube, 16 x 100mm (12mL), PP, No Rim, Bulk, CS/2000

Test Tube, 16 x 100mm (12mL), PP, No Rim, 500/Bag, 4 Bags/Unit, CS/2000

Test Tube, 16 x 100mm (12mL), PS, No Rim, 500/Bag, 2 Bags/Unit, CS/1000

Test Tube, 16 x 100mm (12mL), PP, No Rim, Graduated, Bulk, CS/2000

110110-Tubes, Caps & Racks Catalog

16x150mm Plastic Tubes

110110 by Globe Scientific is a 25 mL polystyrene test tube measuring 16 &times; 150 mm, rimless and round-bottomed, supplied in cases of 1,000. Optical-clarity PS construction allows direct visual inspection of turbidity and pellet formation; rated to 1,500 RPM centrifugation. Suited for bacterial culture, serial dilutions, enzyme reactions, and sample staging where a larger-diameter tube than 12 mm is needed. Not autoclavable &mdash; a PP version is available for autoclaving and higher-speed spins.

Test Tube, 16 x 150mm (20mL), PS, CS/1000

Test Tube, 16 x 150mm (20mL), PP, CS/850

110405-Group-Tubes, Caps & Racks Catalog

110405-Group-TDS-110405-110406

5mL Culture Tube with Dual Position Cap

Globe Scientific 110405 — 5 mL culture tube with dual-position snap cap in polystyrene (1,500 RPM max) or polypropylene (3,000 RPM, autoclavable, freezable). Loose cap position for aerobic incubation; sealed position for anaerobic culture, storage, and transport.

Culture Tube, 12 x 75mm (5mL), PS, with Separate Dual Position Cap, CS/1000

Culture Tube, 12 x 75mm (5mL), PP, with Separate Dual Position Cap, CS/1000

Culture Tube, 12 x 75mm (5mL), PS, STERILE, Attached Dual Position Cap, 25/Bag, 20 Bags/Unit, CS/500

Culture Tube, 12 x 75mm (5mL), PP, STERILE, Attached Dual Position Cap, 25/Bag, 20 Bags/Unit, CS/500

110410-110441-Group-Tubes, Caps & Racks Catalog

110410-110441-Group-TDS-110410-110441

5mL Culture Tubes

110409 by Globe Scientific is a 5 mL, 12 × 75 mm culture tube available in polystyrene (PS, 1,500 RPM max, high optical clarity) or polypropylene (PP, 3,000 RPM max, autoclavable, freezable). Standard format for flow cytometry, cell culture, and clinical sample preparation.

Test Tube, 12 x 75mm (5mL), PS, 250/Bag, 8 Bags/Unit, CS/2000

Test Tube, 12 x 75mm (5mL), PS, 1000/Bag, CS/4000

Test Tube, 12 x 75mm (5mL), PS, for use in Instruments, CS/4000

Test Tube, 12 x 75mm (5mL), PS, Blue, CS/4000

Test Tube, 12 x 75mm (5mL), PS, 250/Oriented Box, 8 Boxes/Unit, CS/2000

Test Tube, 12 x 75mm (5mL), PS, 250/Oriented Box, 4 Boxes/Unit, CS/1000

Test Tube, 12 x 75mm (5mL), PS, Conical Bottom, 250/Bag, 8 Bags/Unit, CS/2000

Test Tube, 12 x 75mm, (5mL), PS, 1000/Bag, 1 Bag/Box, BOX/1000

Test Tube, 12 x 75mm (5mL), PP, 250/Bag, 8 Bags/Unit, CS/2000

Test Tube, 12 x 75mm (5mL), PP, 1000/Bag, CS/4000

Test Tube, 12 x 75mm (5mL), PP, Amber, 1000/Bag, 2 Bags/Carton, CS/2000

Test Tube, 12 x 75mm (5mL), PP, for use in Instruments, CS/4000

Test Tube, 12 x 75mm (5mL), PP, 250/Oriented Box, 8 Boxes/Unit, CS/2000

Test Tube, 12 x 75mm (5mL), PP, 250/Oriented Box, 4 Boxes/Unit, CS/1000

Test Tube, 12 x 75mm (5mL), PP, Conical Bottom, 250/Bag, 8 Bags/Unit, CS/2000

Test Tube, 12 x 75mm, (5mL), PP, 1000/Bag, 1 Bag/Box, BOX/1000

110470-110471-Group-Tubes, Caps & Racks Catalog

110470-110471-Group-TDS-110470-110471

5mL Plastic Test Tubes

110470 by Globe Scientific is a 5 mL polystyrene test tube, 13×75 mm, supplied in a bag of 1000. Maximum centrifugation rating of 1500 RPM; optically clear for visual sample inspection. Fits standard 13 mm tube racks and is compatible with polyethylene plug caps. ISO 9001:2015 certified manufacturer.

Test Tube, 13 x 75mm (5mL), PS, 1000/Bag, CS/4000

Test Tube, 13 x 75mm (5mL), PP, 1000/Bag, CS/4000

Test Tube, 13 x 75mm (5mL), PS, 500/Bag, 4 Bags/Unit, CS/2000

Test Tube, 12 x 75mm (5mL), PP, with Separate Natural Plug Cap, 1000/Box, BOX/1000

Test Tube, 13 x 75mm (5mL), PP, 500/Bag, 4 Bags/Unit, CS/2000

Cap, Snap, 12mm, Dual Position, LDPE, BAG/1000

118120A by Globe Scientific is a 12 mm dual-position LDPE snap cap with a ribbed exterior, designed for both aerobic (loose position) and sealed (leak-resistant position) culture tube applications. The single cap serves both workflow states without cap replacement. Supplied 1,000 per bag; suitable for glass and plastic 12 mm culture tubes in microbiology and clinical lab settings.

Tubes, Caps & Racks Catalog

Lab Supplies for Physicians Offices

Cap, Universal Fit Cap for 12mm, 13mm and 16mm Plastic Tubes

118115A by Globe Scientific is a polyethylene universal snap cap fitting 12 mm, 13 mm, and 16 mm plastic tubes, supplied 1000 caps per bag in 8 colors. A single cap format for multiple tube diameters reduces inventory complexity in labs running blood collection tubes, specimen tubes, and general polystyrene or polypropylene test tubes.

Cap, Universal, Fits most 12mm, 13mm and 16mm tubes, Clear/Natural, CS/10000

Cap, Universal, Fits most 12mm, 13mm and 16mm tubes, Lavender, CS/10000

Cap, Universal, Fits most 12mm, 13mm and 16mm tubes, Gray, CS/10000

Cap, Universal, Fits most 12mm, 13mm and 16mm tubes, Blue, CS/10000

Cap, Universal, Fits most 12mm, 13mm and 16mm tubes, Green, CS/10000

Cap, Universal, Fits most 12mm, 13mm and 16mm tubes, Black, CS/10000

Cap, Universal, Fits most 12mm, 13mm and 16mm tubes, Red, CS/10000

Cap, Universal, Fits most 12mm, 13mm and 16mm tubes, Yellow, CS/10000

Flyer

118118-Tubes, Caps & Racks Catalog

Diamond Culture Tube Cap for Glass Culture Tubes, PP

The 118150B by Globe Scientific is a blue Diamond® DeLong-style polypropylene (PP) culture tube cap for 13 mm glass culture tubes — autoclavable, ridged for grip and controlled gas exchange, and color-coded for sample identification. Packed 100 per bag, 1,000 per carton.

Diamond Culture Tube Cap for 13mm Glass Culture Tubes, PP, Blue, 100/Bag, 10 Bags/Carton

Diamond Culture Tube Cap for 13mm Glass Culture Tubes, PP, Blue, 100/Bag

Diamond Culture Tube Cap for 13mm Glass Culture Tubes, PP, Clear, 100/Bag, 10 Bags/Carton

Diamond Culture Tube Cap for 13mm Glass Culture Tubes, PP, Clear, 100/Bag

Diamond Culture Tube Cap for 16mm Glass Culture Tubes, PP, Blue, 100/Bag, 10 Bags/Carton

Diamond Culture Tube Cap for 16mm Glass Culture Tubes, PP, Blue, 100/Bag

Diamond Culture Tube Cap for 16mm Glass Culture Tubes, PP, Clear, 100/Bag, 10 Bags/Carton

Diamond Culture Tube Cap for 16mm Glass Culture Tubes, PP, Clear, 100/Bag

Diamond Culture Tube Cap for 18mm Glass Culture Tubes, PP, Blue, 100/Bag, 10 Bags/Carton

Diamond Culture Tube Cap for 18mm Glass Culture Tubes, PP, Blue, 100/Bag

Diamond Culture Tube Cap for 18mm Glass Culture Tubes, PP, Clear, 100/Bag, 10 Bags/Carton

Diamond Culture Tube Cap for 18mm Glass Culture Tubes, PP, Clear, 100/Bag

Diamond Culture Tube Cap for 20mm Glass Culture Tubes, PP, Blue, 100/Bag, 5 Bags/Carton

Diamond Culture Tube Cap for 20mm Glass Culture Tubes, PP, Blue, 100/Bag

Diamond Culture Tube Cap for 20mm Glass Culture Tubes, PP, Clear, 100/Bag, 5 Bags/Carton

Diamond Culture Tube Cap for 20mm Glass Culture Tubes, PP, Clear, 100/Bag

Diamond Culture Tube Cap for 25mm Glass Culture Tubes, PP, Blue, 100/Bag, 5 Bags/Carton

Diamond Culture Tube Cap for 25mm Glass Culture Tubes, PP, Blue, 100/Bag

Diamond Culture Tube Cap for 25mm Glass Culture Tubes, PP, Clear, 100/Bag, 5 Bags/Carton

Diamond Culture Tube Cap for 25mm Glass Culture Tubes, PP, Clear, 100/Bag

Diamond Culture Tube Cap for 13mm Glass Culture Tubes, PP, Green, 100/Bag, 10 Bags/Carton

Diamond Culture Tube Cap for 13mm Glass Culture Tubes, PP, Green, 100/Bag

Diamond Culture Tube Cap for 13mm Glass Culture Tubes, PP, Red, 100/Bag, 10 Bags/Carton

Diamond Culture Tube Cap for 13mm Glass Culture Tubes, PP, Red, 100/Bag

Diamond Culture Tube Cap for 13mm Glass Culture Tubes, PP, Yellow, 100/Bag, 10 Bags/Carton

Diamond Culture Tube Cap for 13mm Glass Culture Tubes, PP, Yellow, 100/Bag

Diamond Culture Tube Cap for 16mm Glass Culture Tubes, PP, Green, 100/Bag, 10 Bags/Carton

Diamond Culture Tube Cap for 16mm Glass Culture Tubes, PP, Green, 100/Bag

Diamond Culture Tube Cap for 16mm Glass Culture Tubes, PP, Red, 100/Bag, 10 Bags/Carton

Diamond Culture Tube Cap for 16mm Glass Culture Tubes, PP, Red, 100/Bag

Diamond Culture Tube Cap for 16mm Glass Culture Tubes, PP, Yellow, 100/Bag, 10 Bags/Carton

Diamond Culture Tube Cap for 16mm Glass Culture Tubes, PP, Yellow, 100/Bag

Diamond Culture Tube Cap for 18mm Glass Culture Tubes, PP, Green, 100/Bag, 10 Bags/Carton

Diamond Culture Tube Cap for 18mm Glass Culture Tubes, PP, Green, 100/Bag

Diamond Culture Tube Cap for 18mm Glass Culture Tubes, PP, Red, 100/Bag, 10 Bags/Carton

Diamond Culture Tube Cap for 18mm Glass Culture Tubes, PP, Red, 100/Bag

Diamond Culture Tube Cap for 18mm Glass Culture Tubes, PP, Yellow, 100/Bag, 10 Bags/Carton

Diamond Culture Tube Cap for 18mm Glass Culture Tubes, PP, Yellow, 100/Bag

Diamond Culture Tube Cap for 20mm Glass Culture Tubes, PP, Green, 100/Bag, 5 Bags/Carton

Diamond Culture Tube Cap for 20mm Glass Culture Tubes, PP, Green, 100/Bag

Diamond Culture Tube Cap for 20mm Glass Culture Tubes, PP, Red, 100/Bag, 5 Bags/Carton

Diamond Culture Tube Cap for 20mm Glass Culture Tubes, PP, Red, 100/Bag

Diamond Culture Tube Cap for 20mm Glass Culture Tubes, PP, Yellow, 100/Bag, 5 Bags/Carton

Diamond Culture Tube Cap for 20mm Glass Culture Tubes, PP, Yellow, 100/Bag

Diamond Culture Tube Cap for 25mm Glass Culture Tubes, PP, Green, 100/Bag, 5 Bags/Carton

Diamond Culture Tube Cap for 25mm Glass Culture Tubes, PP, Green, 100/Bag

Diamond Culture Tube Cap for 25mm Glass Culture Tubes, PP, Red, 100/Bag, 5 Bags/Carton

Diamond Culture Tube Cap for 25mm Glass Culture Tubes, PP, Red, 100/Bag

Diamond Culture Tube Cap for 25mm Glass Culture Tubes, PP, Yellow, 100/Bag, 5 Bags/Carton

Diamond Culture Tube Cap for 25mm Glass Culture Tubes, PP, Yellow, 100/Bag

118118-Lab Supplies for Physicians Offices

Dual Position Snap Cap

Globe Scientific 118118 — 17 mm LDPE dual-position snap cap, ribbed for grip, with a loose (aerobic/gas-permeable) and sealed (anaerobic/leak-resistant) position. Compatible with 17 mm diameter culture tubes including Globe Scientific 110158. 1,000 caps per unit (500/bag × 2 bags).

Cap, Snap, 17mm, Dual Position, LDPE, Bag/1000, 5 bags/case

Cap, Snap, 12mm, Dual Position, LDPE, Bag/1000, 20 bags/case

5527-5528-Group-Analyzer Consumables Catalog

5527-5528-Group-TDS-5527-5528

False Bottom Tubes & Caps

5527-5528 by Globe Scientific is a matched pair of PP false bottom tubes (5527: 16×97 mm, 5 mL, threaded) and white screw caps (5528) for use as secondary barcoded sample tubes on automated analyzers. Compatible with Hitachi, Olympus, Beckman, Tosoh, Vitros, and other platforms. Tubes: 1,000/case. Caps sold separately.

Tube, False Bottom, 16 x 97mm (5mL), with Threads, PP, Natural, CS/1000

Tube, False Bottom, 16 x 97mm (5mL), with Threads, PP, Natural, CS/1500

Cap, Screw, for False Bottom Tubes with Threads, White, BAG/1000

Cap, Screw, for False Bottom Tubes with Threads, White, BAG/1500

113150-TDS-113150-113151

Pierceable Plug Stopper for Test Tubes

113150A by Globe Scientific is an amber TPE pierceable plug stopper for 13 mm vacuum blood collection tubes and test tubes. Reseals after syringe or autoanalyzer probe piercing; latex-free. Suitable for recapping, closed-system sampling, and needle-access tube storage. Available in multiple colors for tube color-coding.