ASTM E-288 batch certificate


  • Made as per ASTM E-288, Boro 3.3 glass
  • With diamond graduated line and are calibrated TC {To Contain)
  • Printed in durable white colour enamel
  • With Batch Certificate

Boro 3.3 or Borosilicate 3.3 is a type of glass having very low coefficient of thermal expansion White Printing Chemical Resistant class A GLASS STOPPER Diamond Ring


* Non ASTM