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- Class A/AS Works Certified volumetric products are inscribed with an individual serial number and are supplied with an individual calibration certificate. Each certificate includes details of the actual volume, uncertainty estimation for the calibration and the required tolerance for compliance.
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What are the different types of volumetric laboratory glassware?
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Our volumetric laboratory glassware is available in three main calibration classes: Class AS, Class A and Class B. Below is a quick guide to what each class means so you can better decide if they are suitable for your application.
- Calibration
Our PYREX® cylinders conform to the highest CLASS A accuracy...
- Thermometers
Glass Red Spirit Thermometers provide easy temperature...
- Standard Glass Test Tubes
Holder Test Tubes, 180mm in size. Ideal for holding hot test...
- Tall Form Measuring Cylinder
Decrease Quantity of PYREX® Heatproof Glass Measuring...
- Mortar and Pestles
Glass Mortar and Pestles Manufactured from SIMAX...
- Tall Form Mixing Cylinder
SIMAX heatproof mixing cylinders are stamped and calibrated...
- Crystallising Dishes
Manufactured from SIMAX® borosilicate glass Suitable for use...
- Petri Dishes
Used for microbiological testing in food, dairy, health,...
- Calibration
The use of Class A borosilicate glass for volumetric glassware means accuracy is retained over a longer working lifetime than their soda-lime equivalents. With everyday use, volumetric glassware requires recalibration.
Dec 18, 2017 · Glassware designated Class A signifies a compliance with applicable construction and accuracy requirements. Class A instruments are the preferred choice for volumetric determinations. Class A flasks are ISO9000 compatible.
Jan 6, 2015 · The glassware bears the letter A and is calibrated to half the tolerance level of Class B glassware. It come with a calibration certificate bearing a unique serial number for establishing traceability.
Feb 12, 2024 · This specification covers general requirements for laboratory glass volumetric apparatus of Class A and B. The volumetric apparatus shall be manufactured from glass of suitable chemical and thermal properties, and shall be as free as possible from visible defects.
Volumetric laboratory glassware is available in three main calibration classes: Class AS, Class A and Class B. Below is a quick guide to what each class means so you can better decide if they are suitable for your application.
Apr 17, 2024 · Learn how to calibrate the Volumetric Glassware including flasks, pipettes and burettes.