
GLOBE SCIENTIFIC
Frequently asked questions
Common questions about GLOBE SCIENTIFIC from 3G Electric.
What materials are Globe Scientific bottle caps made from?
Globe Scientific bottle caps are available in polyethylene, thermoplastic elastomer, and other polymers. For example, the 409PN4 snap-on cap is made from polyethylene, while the 409PL9 plug cap uses thermoplastic elastomer. Material choice affects chemical resistance, flexibility, and sealing properties. Polyethylene caps are common for general-purpose sealing, while thermoplastic elastomer offers a softer, more conforming fit for plug-style closures. Always verify material compatibility with your specific solvent or reagent.
Are Globe Scientific pipette tips autoclavable?
Yes, many Globe Scientific pipette tips, such as the 52JY16 non-sterile 20 µL tip, are specified as autoclavable. These tips are made from polypropylene, which can withstand standard autoclave cycles (typically 121°C at 15 psi). However, autoclaving may affect dimensional stability over repeated cycles, so single-use is recommended for critical volume accuracy. Check the product specifications for autoclavable designation before reprocessing.
What is the difference between snap-on and plug-style Globe Scientific bottle caps?
Snap-on caps, like the 409PN4, are designed to press-fit onto a bottle neck, providing a secure seal without threading. They are typically used for temporary or low-pressure sealing. Plug-style caps, such as the 409PL9, are stoppers that insert into the bottle opening, often used for vials or tubes requiring a tight, non-threaded closure. Plug caps are commonly made from thermoplastic elastomer for a snug fit. Both types are available in various diameters and colors.
Do Globe Scientific glass beakers meet Type I borosilicate glass standards?
Yes, Globe Scientific low-form glass beakers, such as the 793VY2 50 mL model, are specified as Type I borosilicate glass. Type I glass has low thermal expansion and high chemical resistance, making it suitable for general laboratory heating, mixing, and storage applications. These beakers are color-coded for easy identification and are available in multiple sizes. They are not graduated, so they are intended for approximate volume measurements rather than precise dispensing.
Are Globe Scientific HDPE bottles suitable for light-sensitive samples?
Yes, Globe Scientific offers HDPE bottles in amber color, such as the 811NY4 30 mL dispensing bottle, which provides UV light protection for light-sensitive contents. Amber HDPE reduces photodegradation of reagents, standards, or biological samples. These bottles are wide-mouth for easy filling and include a 28 mm unlined closure. They are not graduated, so they are best for storage rather than precise measurement.
What is the capacity range of Globe Scientific culture tubes?
Globe Scientific culture tubes, like the 52JV38 model, are available in a 10 mL capacity with a 13 mm body diameter and 100 mm overall height. These tubes are made from colorless glass with a round bottom and are not graduated. They do not include a closure, so separate caps or plugs must be sourced. Globe Scientific likely offers other sizes, but the catalog includes this specific 10 mL variant for general microbial culture or sample storage.
