Volumetric glassware

DURAN® volumetric flask

with circular graduation mark and plastic stopper from PE, finely ground stopperbed, suitable for standard ground stoppers

Calibration is based on the poured in volume (“In”) at a + 20 °C reference temperature. The volume content tolerances conform to
accuracy class A, the accuracy limits of the German weights and measures regulations and DIN and ISO specifications.

With batch certificate in every package.

Typical applications: precise measurement of specified liquid amounts, preparation and storage of standard solutions.

Cat. No. Capacity
ml		 Accuracy limits
± ml		 h
mm		 d
mm		 Stopper-
size		 Pack
Quantity
21 678 07 5 0,025 70 24 7/16 2
21 678 08 10 0,025 90 28 7/16 2
21 678 12 20 0,04 110 37 10/19 2
21 678 14 25 0,04 110 39 10/19 2
21 678 17 50 0,06 140 49 12/21 2
21 678 24 100 0,1 170 61 12/21 2
21 678 25 100 0,1 170 61 14/23 2
21 678 32 200 0,15 210 76 14/23 2
21 678 36 250 0,15 220 81 14/23 2
21 678 44 500 0,25 260 101 19/26 2
21 678 54 1 000 0,4 300 127 24/29 2
21 678 63 2 000 0,6 370 161 29/32 2
21 678 73 * 5 000 1,2 470 217 34/35 1

* Non-ISO size.