Volumetric Flask Borosilicate Glass - Class A Batch Certificate

Class "A" volumetric flask is a piece of precision laboratory glassware used for preparing solutions with a high degree of accuracy. The "Class A" designation indicates that the flask meets strict manufacturing and calibration standards, ensuring it can measure a specific volume of liquid with minimal error. 

A volumetric flask (measuring flask or graduated flask) is a laboratory flask, calibrated to contain a precise volume at a certain temperature. Volumetric flasks are used for precise dilutions and preparation of standard solutions. These flasks are usually pear-shaped with a flat bottom. The flask's mouth is fitted with a joint to accommodate a compatible stopper. The neck of volumetric flasks is elongated and narrow with an etched ring graduation marking. The marking indicates the volume of liquid contained when filled up to that point. The marking is typically calibrated "to contain" (marked "TC" or "IN") at 20 °C and indicated correspondingly on a label. The flask's label also indicates the nominal volume, tolerance, precision class, relevant manufacturing.

Key Characteristics  

• Accuracy and Precision: Class A flasks are the most accurately available for general laboratory use. They have tighter tolerance limits than Class B flasks.
• Standards: Their specifications must conform to international standards such as ISO 1042 or ASTM E288.
• Tolerance Limits: The maximum permissible error in volume for a Class A flask is very small.
• Calibration: They are individually calibrated to contain (TC, or In) a specific volume at a standard temperature, typically 20 °C.
• Certification: They often come with a certificate of conformity or calibration to guarantee their accuracy. 

Features 

• Marking: Each flask has a single graduation mark (a line around the neck) indicating the precise volume it holds when filled correctly (with the bottom of the meniscus aligned with the mark).
• Stopper: Plastic Stopper
• Material: Borosilicate glass for chemical resistance

Specification

• Capacity : Available from 25ml up to 2 000ml
• Cloour: Clear
• Class: A
• Neck: Joint (Select Size)
• Material: Borosilicate 3.3 Glass
• Print: Blue
• Compliance with DIN ISO 1042 Standard
• Batch certificate
• Polyethylene stopper
• Product of India
• Brand: ARCO