CH1972E
Borosilicate Glass Volumetric Flask with Solid Glass Stopper, 100 ml, USP Class A with Individual Work Certificate, Pack of 2, Autoclavable

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  • 100 ml borosilicate volumetric flask
  • Includes polypropylene stopper (12/21)
  • Class A, USP
  • Single graduation mark, blue print
  • Tolerance ±0.080 ml
  • Individually calibrated at 20°C, includes Individual Work Certificate
  • Made from high quality 3.3 borosilicate glass
  • Pack of 2
  • Low temperature gradient - can withstand high temperatures and thermal shocks*
  • Superior chemical durability*
  • Autoclavable at 121°C
  • Complies with USP 31 and DIN ISO 1042 standards
*See specifications tab for temperature and chemical durability information
    Material 3.3 Borosilicate Glass
    Class Class A
    Capacity 100 ml
    Stopper Polypropylene (12/21)
    Tolerance ±0.080 ml
    Graduation yes
    Thermal Properties (Flask)
    Coefficient of Linear Expansion 32.5 x 107 / °C
    Strain Point -515°C
    Annealing Point 565°C
    Softening Point 820°C
    Specific Heat 0.2
    Thermal Conductivity (Cal/cm3°C/Sec) 0.0027
    Chemical Durability
    Contact Chemical (mg/m2) Duration (hours) Loss in weight
    Water distilled at 100°C 6 10
    Water vapour steam at 121°C 1 75
    Acid HCl 6 100
    80% H2SO4 at 130°C 12 140
    Alkali -1N solution of Na2CO3 boiling 6 400
    Isotonic infusion Fluids
    NaCl (0.85%) at 121°C 2.5 70
    Glucose (5%) at 121°C 2.5 50