Corning™ PYREX™ Class A Volumetric Flasks with Glass Standard Taper Stopper

Catalog No.	Capacity (Metric)	Closure Size	Bottom Shape	Tolerance
20-812D	10 mL	9	Flat	±0.02 mL
10-210L	5 L	38	Flat	±0.05 mL
10-210K	4 L	38	Flat	±1 mL
20-812A	1 mL	8	Round	±0.03 mL
20-812B	2 mL	8	Round	±0.08 mL
20-812C	5 mL	8	Flat	±0.02 mL
10-210C	100 mL	13	Flat	±0.01 mL
10-210A	25 mL	9	Flat	±0.02 mL
10-210B	50 mL	9	Flat	±0.05 mL
10-210D	200 mL	13	Flat	±0.3 mL
10-210F	500 mL	19	Flat	±0.02 mL
10-210E	250 mL	16	Flat	±0.1 mL
10-210H	2000 mL	27	Flat	±0.03 mL
10-210G	1 L	22	Flat	±0.3 mL

Catalog No. 20-812D Supplier Corning™ Supplier No. 564010

Description

Machine-blown body

The strength of these flasks has been increased appreciably through machine-blown bodies to which are sealed heavy-tubing necks tooled for standard taper glass stoppers. The graduation line is sharp and permanent; large white block letters make the inscription easy to read. The 1 mL and 2 mL sizes are test tube shaped. Sizes 3L through 6L have pennyhead standard taper stoppers.

For stopper only, see Cat. Nos. 7650 and 7661.

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Specifications

• Closure Material: Glass
• Diameter (English) Outer: 1.1 in.
• Capacity (Metric): 10 mL
• Material: Borosilicate Glass
• Height (English): 3.9 in.
• Height (Metric): 9.9 cm
• Neck Style: Long
• No. per Case: 12/Cs.
• No. per Pack: 12/Pk.
• Tolerance: ±0.02 mL
• Graduated: Yes
• Class: A
• Bottom Shape: Flat
• Diameter (Metric) Outer: 28 mm
• Closure Size: 9

Frequently Asked Questions (FAQs)

Can these glass products handle heat and chemicals?

Yes, Type I, Class A borosilicate glass is designed for excellent heat resistance and is highly resistant to chemical attack, making it suitable for various laboratory applications.

How should borosilicate glassware be handled for optimal durability?

Proper care ensures the glassware withstands most laboratory temperatures and maintains its chemical resistance. The mechanical strength depends not only on wall thickness but also on the glass formula and type.

What makes Type I, Class A borosilicate glass ideal for laboratory applications?

• Temperature Resistance: Withstands nearly all temperatures used in normal laboratory use with proper care
• Chemical Resistance: Highly resistant to chemical attack
• Low Coefficient of Expansion: Allows for the production of glass with varying wall thicknesses tailored for specific purposes
• Durability: Mechanical strength is influenced by the glass formula and type, ensuring reliability and heat resistance

What are the key features of the materials used in these products?

• Non-pyrogenic
• Human DNA-free
• PCR inhibitor-free
• RNase-/DNase-free
• Made from USP Class VI Polypropylene (for plastic components)

What industries use ISO/IEC 17025 volumetric glassware?

• Pharmaceutical
• Industrial
• Government and public service
• Third-party testing labs
• Academic institutions
• Medical technology
• Agriculture
• Health and beauty industries

What is the difference between Serialized/Certified and Standard Class A volumetric products?

• Serialized/Certified Products: Individually calibrated with unique serial numbers, NIST traceable, and include a certificate of calibration for high-accuracy applications
• Standard Class A Products: Calibrated for general use without individual serial numbers. These are more economical and suitable for most laboratories

What does ISO/IEC 17025 certification provide?

ISO/IEC 17025 certification ensures the accuracy and reliability of calibrated glassware by verifying that it meets international standards for testing and calibration. It also demonstrates the quality and competence of Corning’s manufacturing and quality assurance processes, providing confidence in the precision of laboratory measurements.

Why is calibration important for volumetric glassware?

Calibration ensures the accuracy of measurements, which is critical for precision experiments and compliance with regulatory standards.

Why choose calibrated volumetric glassware?

It is a cost-effective option that still meets acceptable accuracy standards for most laboratory applications.

What are the features of calibrated volumetric glassware?

• Representative sample of the production lot is calibrated
• Provides acceptable accuracy for most labs
• A more economical choice if Serialized/Certified glassware is not required

Why choose Serialized/Certified Class A glassware?

Serialized/Certified Class A glassware offers verified accuracy and traceability, enhancing confidence in measurement results. It reflects Corning’s commitment to high manufacturing and quality assurance standards, making it ideal for laboratories that require a high level of assurance in volumetric precision.

What are the features of Serialized/Certified Class A glassware?

• Every piece is calibrated
• NIST traceable (National Institute of Standards and Technology)
• Certificate of calibration provided with the item’s serial number
• Certificates include EMA and ILAC-MRA logos for international recognition
• Ensures a high standard of accuracy, required by some labs

What is ISO/IEC 17025 volumetric glassware?

ISO/IEC 17025 volumetric glassware refers to laboratory glassware that has been calibrated in accordance with the ISO/IEC 17025 standard, which ensures the competence of testing and calibration laboratories. Corning calibrates this glassware in its ISO/IEC 17025-accredited lab to guarantee precision and reliability. This level of calibration meets the stringent requirements of laboratories that demand high accuracy in volumetric measurements.