ASTM E-288batch certificate




  • These flasks are made as per ASTM E-288, Class-A unserialized specification
  • The flasks have diamond graduated line and are calibrated TC (To Contain)
  • Printed in white colour enamel & with Batch Certificate

Boro 3.3 or Borosilicate 3.3 is a type of glass having very low coefficient of thermal expansionWhite PrintingChemical Resistantclass AGLASS STOPPERDiamond Ring




* Non ASTM