volumetric flask a class

Volumetric Glassware Class A

The accuracy of volumetric ware depends on the care used in calibrating it, using the correct type of ware for the application, handling the ware properly and ensuring the ware is clean. Calibration of volumetric ware is usually done at 20°C, and the ware should be used at approximately this temperature. Refrigerated liquids should be allowed to come to room temperature before measuring them. Under normal use and care the calibration of volumetric are will not change. Do not expose volumetric ware to excessive heat.

Volumetric Flasks Clear A Grade

Volumetric Flask Clear Class (A) With Poly Stopper To ISO 9000, White and Dark Line Markings With Batch  Certificate of Performance . 

Volumetric Flasks A Grade (Brown Glass)

Class A, conformity certificate, with dated batch identification, ISO 9000, with NS ground and Poly stopper, white graduation, DIN EN  ISO 1042. Batch certificate of performance or individual certificate of performance available.