with straight standard ground stopcock
DURAN Burette Class B
• Calibration is based on the poured out volume (“Ex”) at a + 20 °C reference temperature.
• The Class B accuracy limit is roughly one and a half times wider than for Class AS.
• The tolerances are thus more strict than specified by DIN.
• Volume content tolerances conform to DIN and ISO
• Typical application: titrations
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