Volumetric glassware

DURAN® burette

with straight standard ground stopcock, class AS, 30 seconds waiting time

With Schellbach stripe and main graduations as circular divisions. Calibration is based on the poured out volume (“Ex”) at a + 20 °C reference temperature. Volume content tolerances conform to ISO.

Typical application: titrations.

With glass key

Cat. No. Capacity
ml		 Accuracy limits
± ml		 Graduation
divisions
ml		 h
mm		 Run-out
time
s		 Pack
Quantity
24 329 27 10 0,02 0,02 750 35-45 2
24 329 33 25 0,03 0,05 750 35-45 2
24 329 36 50 0,05 0,1 750 35-45 2

With PTFE key

Cat. No. Capacity
ml		 Accuracy limits
± ml		 Graduation
divisions
ml		 h
mm		 Run-out
time
s		 Pack
Quantity
24 330 27 NEW 10 0,02 0,02 750 35-45 2
24 330 33 NEW 25 0,03 0,05 750 35-45 2
24 330 36 NEW 50 0,05 0,1 750 35-45 2

DURAN® burette

with straight standard ground stopcock, class B

Calibration is based on the poured out volume (“Ex”) at a
+ 20 °C reference temperature. Volume content tolerances
conform to DIN and ISO. 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.

Typical application: titrations.

Cat. no. Capacity
ml		 Accuracy limits
± ml		 Graduation
divisions
ml		 h
mm		 Pack
Quantity
24 328 27 10 0,03 0,02 750 2
24 328 33 25 0,04 0,05 750 2
24 328 36 50 0,08 0,1 750 2
24 328 39 * 100 0,15 0,2 750 2

* Non-ISO size.

 

DURAN® automatic burette

Pellet-type, side-positioned standard ground stopcock, class AS, 30  seconds waiting time

With Schellbach stripe and main graduations as circular divisions, reservoir bottle (2, 000 ml) and blowball.

Typical application: titrations.

Cat. No. Capacity
ml		 Accuracy
limits
± ml		 Graduation
divisions
ml		 Run-out
time
s		 Overall length
mm		 Pack/
Quantity
24 318 27 5 10 0,02 0,02 35-45 930 1
24 318 33 5 25 0,03 0,05 35-45 930 1
24 318 36 5 50 0,05 0,1 35-45 930 1
Cat. No. Components   Pack
Quantity
24 318 27 Burette only 10 ml, with side stopcock 1
24 318 33 Burette only 25 ml, with side stopcock 1
24 318 36 Burette only 50 ml, with side stopcock 1
21 159 63 Reservoire bottle, clear 2 000 ml 1
29 245 01 Blowball   1