Calibrated "to contain " Standard Taper stoppers (4997K13 to K76) Size 2 mL is test-tube shape and not marked A (as tolerances are larger) Sizes 5 mL and larger are designed for Federal Specification NNN-F-289 and meet ASTM Standard E 288 Capacity/stopper size given in listings …

Available with markings in four colors, the KIMAX® Colorware flasks are brighter in appearance than traditional glassware with white markings. These flasks are also commonly used to help reduce cross-contamination and for easy identification of glassware between labs. KIMAX®…

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

RAY-SORB® processed to protect materials sensitive to the light of shorter wavelengths Less than 1% transmission below 400 nm and approximately 5% transmission from 400-600 nm Pipet access is easy with wide-mouth volumetric flasks Superior strength, durability and safety provided by…

Transluscent flasks are supplied with a PFA screw cap. Screw caps provide hermetic seals and help reduce the possibility of outside contamination. The product is manufactured to Class A tolerances as defined by ISO 1042 and flasks have individually calibrated graduation lines. They withstand high…

Dual angled sidearm fittings can be used for aseptically transferring medium into or out of angled sidearm spinner flasks or for sparging the medium with gases. Fittings are comprised of a PET insert with a fluorocarbon O-Ring and a polypropylene sealing cap. Two 316 stainless steel tubes,…

Low actinic stained glass provides protection for materials sensitive to light. The protective color is an integral part of the flask, which retains the mechanical strength, chemical stability, and thermal resistance of the PYREX brand labware. The heavy duty, wide mouth accommodates pipet filling…

Wide mouth design facilitates mixing, pipette access, sampling and filling. Unique Flat Bottom Interior permits the use of a standard stir bar. Large permanent white letters make the capacity clearly visible. Flasks are calibrated "To Contain" at Class A tolerances, per ASTM E288…

Class A, USP, certified volumetric flasks. These are supplied with a glass stopper with a dripping tip. Available in both transparent and amber color. High contrast blue enamel print on transparent flasks and white on amber flasks represent the optimum combination of resistance and readability.…

Wide neck easily accommodates a 50 mL pipet Superior strength, durability and heavy uniform walls ensure safety in the lab Flat interior bottoms are ideal for stirring These KimCote® volumetric flasks are graduated to Class A volumetric tolerances and are designed from ASTM…

Low actinic red stained glass provides protection to light sensitive solutions. Allowing less than 1% transmission below 400nm and 5% from 400-600nm. Wide mouth design facilitates mixing, pipette access, sampling and filling. Unique Flat Bottom Interior permits the use of a standard stir bar. Large…

Similar to CG-1600 but with the addition of a mixing bulb between the calibration line and the stopper. The mixing bulb contains approximately one tenth of the flask capacity and aids in the mixing or dissolving of the flask contents. Supplied complete with one solid glass pennyhead stopper. For…

Calibrated both "to contain" and "to deliver" (top line). Graduation rings and marking spot are blasted onto glass. ground glass stopper is supplied with the flask. Designed from ASTM Specification E288, Class A unserialized requirements. Replacement ground glass stopper is…

These PYREX® 200mL volumetric flasks provide improved lab convenience, broad selection and precise volume measurement. The strength of these flasks has been increased appreciably through machine-blown bodies to which are sealed heavy-tubing necks tooled for No. 13 Standard Taper glass stoppers.…

Polymethylpentene (PMP) and Polypropylene (PP) volumetric flasks provide a break-resistant alternative to glass. Flasks meet Class B per DIN EN ISO 1042. Flasks are supplied with matching PP screw cap or stopper. The 10 mL size allows for accurate measurement of small volumes. Screw…

These Class A PYREX volumetric flasks are made from red low actinic stained glass to provide protection for materials sensitive to light. The protective color is an integral part of the flask, which retains its mechanical strength, chemical stability and thermal resistance. The graduation line is…

An excellent alternative to glass flasks, these glass flasks are made from PMP are gravimetrically calibrated to contain at 20º C. These plastic volumetric flasks meet Class B tolerances per DIN EN ISO 1042.

Heavy Wall Available from 5mL-1000mL Individually Certified Class A Glass Stopper included

Polymethylpentene (PMP) and polypropylene (PP) volumetric flasks are an excellent break-resistant alternative to glass. Class A per DIN EN ISO 1042. Supplied with matching PP standard taper joint stoppers.

Permanently marked with an individual serial number, providing an easy way to track items used during analytical testing Carefully selected to meet the Class A requirements as specified in ASTM E 288 - Standard Specification for Volumetric Flasks Supplied with a Certificate of Graduation…

An excellent alternative to glass flasks, these glass flasks are made from PMP are gravimetrically calibrated to contain at 20º C. These plastic volumetric flasks meet Class B tolerances per DIN EN ISO 1042.

Clear Glass With PE Stoppers Pipet access is easy with wide-mouth, volumetric flasks Superior strength, durability and safety from heavy, uniform walls Quick identification with large, permanent, easy-to-read markings Flat interior bottoms for stirring with standard stir bars …

RAY-SORB Processed Glass with PTFE Stoppers Pipet access is easy with wide-mouth, volumetric flasks Superior strength, durability and safety from heavy, uniform walls Quick identification with large, permanent, easy-to-read markings Flat interior bottoms for stirring with standard…

Durable, machine-blown body. Heavy beaded tubing neck. Flasks feature a sharp graduation line and large white block letters. A plastic snap cap is included.

Borosil® Amber Wide Mouth Class A Volumetric Flasks are individually calibrated by automatic, laser-controlled calibration equipment. Supplied with standard taper glass stoppers. Flasks comply with ASTM E-288, Class A. 20mL, 500mL, 1L options is not covered in ASTM. 5mL, 10mL, and…

Manufactured from borosilicate glass these wine testing volumetric flasks have wide bases and a flat bottoms for stability. Flask neck is graduated in 1mL subdivisions from 680 to 780mL. The long neck is calibrated To Contain at 20°C and markings indicate the volume of liquid when filled to…

The Erlenmeyer Flask features heavy-duty rim to reduce chipping, white permanent graduations, and marking squares. It is made from high-quality borosilicate tubing with a low coefficient of expansion.

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

Durable, machine-blown body. Heavy beaded tubing neck. Flasks feature a sharp graduation line and large white block letters. A plastic snap cap is included. Meets Class A specifications per ASTM E-288. Batch Certified. Our volumetric flasks feature QR code integration to facilitate quick and easy…

KIMAX® flask calibrated to contain Class A accuracy but without a serial number Supplied with a polyethylene snap cap Replacement cap is 28150R Designed from ASTM Specification E288 requirements Manufactured from 33 expansion, low extractable borosilicate glass conforming to USP…

These Class A PYREX® mixing volumetric flasks have an upper bulb, located between the Standard Taper stopper and the capacity graduation to assist in the mixing of liquids or powders when shaken. This bulb is approximately one-tenth the flask rated capacity of the flask. The strength of these…