Pyrex Flask

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Pyrex Flask
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  • …life under the toughest lab conditions Normal working temperatures for PYREX brand boiling flasks is 230°C Precisely tooled for uniform stopper fit Reinforced rim increases mechanical strength These flasks are used in applications requiring rigid stoppering and as wash bottles in…

  • Round bottom and long neck 30 mL size has square-cut mouth for multiple micro digestions; mouths of larger sizes are tooled for uniform rubber stopper fit. 30 mL flask conforms with ASTM Standard E 147 for microchemical apparatus; 100 mL through 800 mL flasks can be used in ASTM E 258 procedure.

  • For use in vacuum filtration applications Withstands full vacuum (to 30” Hg) With hose barb for 1/4” I.D. tubing

  • Plug-seal screw caps Graduated Neck opening: 29 mm Ideal for all media prep and storage needs. Easy to use with larger volume serological pipets.

  • Small filtering flasks are recommended for microchemical use All flasks have permanent white-enamel marking spots Takes rubber stopper No. 3; 50 mL size, No. 4; 125 mL size, No. 5

  • Heavy-duty rim for longer service Narrow mouth Graduated scale indicates approximate volume The Erlenmeyer design is extremely popular and has been modified for numerous lab applications.

  • The strength of these flasks has been increased appreciably through machine-blown bodies. Sealed, heavy-beaded, heavy-tubing necks are tooled for snap-cap fit. Graduation line is sharp, permanent and large; white block letters make the inscription easy to read. 1 mL and 2 mL sizes are…

  • Delong style Extra deep baffles These PYREX Delong style shaker culture flasks have three extra deep baffles designed to provide greater agitation of solutions to improve oxygen or gas transfer when used with rotary or reciprocating shakers. The long neck reduces splashing and is designed…

  • Permanent graduation line Machine-blown bodies Heavy-beaded, heavy-tubing necks are tooled for polyethylene stopper Stopper is made with a closed bottom and is of linear, high-density polyethylene to conform to Standard Taper stopper dimensions

  • For user convenience, PYREX Erlenmeyer flasks are graduated to show approximate capacity. The 25- 50- and 125 mL flasks are satisfactory for use as a weighing bottle. Erlenmeyer flasks come with a PYREX Standard Taper stopper.

  • Screw cap This wide mouth flask is designed for culturing organisms requiring a large surface area to volume ratio. Triple baffled on the bottom outside edges to achieve maximal oxygen transfer to culture medium. Supplied with GL45 orange polypropylene cap.

  • Round bottom Short ring neck These PYREX® round bottom boiling flasks have short ring necks. These ring neck boiling flasks are precisely tooled for uniform stopper fit. The reinforced rim increases mechanical strength. These flasks are used in applications requiring rigid stoppering…

  • Without tubulation blown in special molds, designed to give maximum mechanical strength Graduated to show approximate capacity Permanent white-enamel graduations and marking spots Sizes from 250 mL to 4,000 mL

  • … Takes stopper size 13 Thomas number 4912L15 features a triple baffle on the bottom outside edges to achieve maximum oxygen transfer to culture medium. NOTE: do not use this flask on a heat source smaller than the base of the flask. Uneven heating of the flask could cause breakage

  • …the flask through a ground joint or rubber stopper. The applied vacuum facilitates the filtration process. These flasks have permanent blue enamel marking spots. The filtering flask is designed to ASTM E-1406 Type 2. Heavy Wall Filtering Flasks These PYREX® VISTA™ filtering flasks

  • Narrow mouth PYREX VISTA Erlenmeyer flasks have uniform wall thickness, which provide the proper balance between mechanical strength and thermal shock resistance. Approximate graduations are in durable blue enamel. An extra large marking space is also provided. The Erlenmeyer flasks are designed to…

  • …the stability of this small flask, a hexagonal base, similar to those on all cylinders, has been added. The graduation line is sharp and permanent and the white markings are easy to read.  Flasks with capacities of 1, 2 and 5 mL come with a No. 8 PYREX stopper while 10 and 25 mL capacity…

  • … Side-arm on all sizes is approximately 77 mm below the top of the neck at an angle of 75° Adaptable for use with thermometer calibrated for 76 mm immersion 50 mL flask takes rubber stopper No. 1; 250 mL flasks, stopper No. 3; 500 mL flask, stopper No. 4; 1,000 mL flask stopper No. 6.

  • …transmission varies from 0 at 300 nm to 4% at 500 nm With barrel-shaped, No. 27 Standard Taper stopper Capacity: 250 mL The protective color is an integral part of the flask, which retains the mechanical strength, chemical stability and thermal resistance of PYREX brand labware.

  • These 25mL PYREX® distilling flasks are suitable for microchemical applications. The sidearm is approximately 77mm below the top of the neck at an angle of 75°. Adaptable for use with thermometers calibrated for 76mm immersion. Flasks take a No. 0 rubber stopper.

  • Full length 24/40 joint on all sizes except 50 mL, which has Standard Taper 19/38 joint Graduated scale indicates approximate volumes Extra large marking space

  • PYREX® VISTA volumetric flasks provide precise volume measurement. The necks are tooled for Standard Taper glass stoppers. The graduation line is sharp and permanent and large blue block letters make the inscription easy to read. The 1 mL and 2 mL sizes are test tube shaped.  These Class A…

  • These PYREX® wide mouth Erlenmeyer flasks are especially recommended for use as titration flasks and are designed with heavy duty rims to reduce chipping. For convenience, these flasks are graduated in durable white enamel to show the approximate capacity and have an extra large marking…

  • These PYREX VISTA volumetric flasks are designed for use by customers that do not require the precision accuracy of our Class A capacity flasks. The shape, body and wall are the same as regular flasks but display the large blue marking spot and designation "PYREX VISTA" unique to the PYREX

  • Short neck Heavy wall PYREX round bottom boiling flasks have full-length outer Standard Taper joints, but with shorter necks. They are manufactured from No. 7740 borosilicate glass. Wall thicknesses are carefully controlled to provide the proper balance between thermal expansion and…

  • Heavy walls Graduated Replaceable tube These PYREX heavy wall flasks have a seated bent, removable plastic tubulation in a grommet. Should the flask be upset, the grommet acts as a shock absorber. For convenience, the flasks are graduated to show approximate capacity. The neck finish…

  • Calibrated "to contain" at 20°C Accuracy tolerances approximately twice those specified for Class A

  • Maximum o.d. 250 mm; height 195 mm Takes number 6 1/2 rubber stopper Capacity 2,500 mL

  • With barrel-shaped Standard Taper glass stopper Calibrated to contain at 20°C

  • Calibrated to Class A ASTM E-542 and E-288 Supplied with a certificate of identification Traceable to NIST standards The graduation line is sharp and permanent. Large white block letters make it easy to read. Supplied with a Standard Taper stopper.

  • Calibrated "to contain" Red stripe, through which capacity mark is etched for legibility and permanence Barrel-shaped Standard Taper glass stoppers

  • Triple baffled flask has a Delong style 38 mm neck for plastic or stainless steel closures. Triple baffles are located at the center of the flask bottom to achieve maximal oxygen transfer to culture medium. Closures are sold separately.

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