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Burettes acc. to Mohr

Burettes acc. to Mohr

Burettes are calibrated volumetric instruments with graduations and groundin stopcocks. They are used in laboratories for quantitative measurements of smaller liquid volumes in titration. Burettes are calibrated ”Ex” (to deliver): The imprinted volume corresponds to the delivered quantity of liquid.

Classification:

  • Class AS (fast delivery, circular graduation at main points). ”A” stands for highest accuracy, ”S” for fast delivery. The tolerances of class AS are half of the tolerances of class B according to DIN ISO standards.
  • Class AS conformity certified (fast delivery, circular graduation at main points):
    Conformity means compliance with the German Calibration Regulations and the relevant standards.
    Conformity symbol
    By imprinting the conformity symbol ”DE-M” along with the year we confirm that the measuring device complies with these conditions. A batch certificate of conformity is supplied together with every box. On request individual certificates of conformity are available.
  • made of borosilicate glass 3.3
  • in compliance with DIN EN ISO 385
  • very good chemical resistance
  • minimal thermal expansion
  • high resistance to thermal shocks
  • blue graduation
  • well legible numbers and graduations
  • 2 pieces in a sturdy carton


Versions:

  • clear glass
  • with Schellbach stripe at the back of the instrument which facilitates reading precisely the meniscus of the liquid
  • amber glass (glass dyed brown)
Class AS, with NS glass plug:
Cat. No.
clear glass
Cat. No.
Schellbach
Cat. No.
amber glass
Capacity Tolerance Unit
2422001 2423001 2426002 10 : 0,02 ml ± 0,02 ml 2
2422011 2423011 2426012 25 : 0,05 ml ± 0,03 ml 2
2422031 2423031 2426032 50 : 0,1 ml ± 0,05 ml 2
2422041 2423041 2426042 100 : 0,2 ml ± 0,10 ml 2
Class AS, with NS PTFE plug:
Cat. No.
clear glass
Cat. No.
Schellbach
Cat. No.
amber glass
Capacity Tolerance Unit
2422101 2423101 2426102 10 : 0,02 ml ± 0,02 ml 2
2422111 2423111 2426112 25 : 0,05 ml ± 0,03 ml 2
2422131 2423131 2426132 50 : 0,1 ml ± 0,05 ml 2
2422141 2423141 2426142 100 : 0,2 ml ± 0,10 ml 2
Class AS, with NS glass plug, clear glass made of KPG precision tubing, calibrated at 5 points conformity certified, with batch certificate:
Cat. No. Capacity Tolerance Unit
2432001 10 : 0,02 ml ± 0,02 ml 2
2432011 25 : 0,05 ml ± 0,03 ml 2
2432031 50 : 0,1 ml ± 0,05 ml 2
2432041 100 : 0,2 ml ± 0,10 ml 2
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