Is it class A? I am something looking for class A digestion cups 50 ml which can be digested in acid medium in 120 degree centigrate for 1 hour . Do you have something like that?

These vessels are tested for volume accuracy at all graduation lines by the procedures set forth in ASTM E542-01, Standard Practice for Calibration of Laboratory Apparatus. Volume accuracy is found to be within the Class A tolerance set forth in ASTM 1272-02, Standard Specification for Laboratory Glass Graduated Cylinders. However, glassware, not plastics, are Class A certified. We do not sell Class A certified digestion vessels.

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