03 VOLUMETRIC GLASSWARE
DURAN® Volumetric Flask, class B
Calibration is based on the poured in volume (“In”) at a + 20°C reference temperature. The volume content tolerances conform to accuracy class B, the accuracy limits of the German weights and measures regulations and DIN and ISO specifications.
with scribed graduation mark and ergonomic polyethylene stopper, white printed image
Typical applications: precise measurement of specified liquid amounts, preparation and storage of standard solutions.
Cat. No.
Neck
Stopper size
Accuracy limits (mL)
Remark Pack Unit
Capacity (mL)
d (OD) (mm)
h (mm)
246700957 246701053 246701259 246701456 246701756 246702555 246703251 246703654 246704453 246705458 246706351 246707356
5 W 22 70 9 ± 1 10/19 0.08 wide neck 2 10 W 27 90 9 ± 1 10/19 0.08 wide neck 2
h
20 39 110 9 ± 1 10/19 0.08 25 40 110 9 ± 1 10/19 0.08
2 2 2 2 2 2 2 2 2 1
50 50 140 11 ± 1 12/21 100 60 170 13 ± 1 14/23 200 75 210 15.5 ± 1.5 14/23 250 80 220 15.5 ± 1.5 14/23 500 100 260 19 ± 2 19/26 1000 125 300 23 ± 2 24/29 2000 160 370 27.5 ± 2.5 29/32 5000 215 475 38 ± 3 34/35
0.12
0.2 0.3 0.3 0.5 0.8 1.2 2.4
250
SCHO
DURAN
d
DURAN® Polyethylene Stoppers
DURAN® polyethylene stoppers are ergonomically shaped. This ensures that measuring flasks, mixing cylinders and storage bottles can be easily opened and securely closed. Furthermore, a taper with several grooves ensures the perfect seal. The standard taper joint size can be easily and quickly assigned using stopper inserts with different colours.
d 2
d 1
DURAN PE 24/29
Cat. No.
d 1 (OD) (mm)
d 2 (OD) (mm)
h (mm)
Colour
Stopper size Pack Unit
292050201 292050304 292050407 292050604 292050707 292050801 292050904 292051103 292051206
29.5 32.5 36.5
17.5
28 32 35 38 42 46 50 54 60
blue
7/16
10 10 10 10 10 10 10
20 22 25 31 38
green violet
10/19 12/21
h
40
yellow 14/23
44.5 51.5
blue
19/26 24/29 29/32 34/45 45/40
green
61 71
45.5 54.5 65.5
red
orange brown
1 1
81.5
DURAN® Mixing Cylinder with hexagonal base, class A
The large hexagonal base prevents the cylinder from rolling. The base is equipped with three knobs which increase its stability. The cylinders have uniform wall thickness over the entire measurement range, so wedge errors are avoided. Calibration is based on the poured in volume (“In”) at a + 20 °C reference temperature. Mixing cylinder accuracy limits conform to DIN and ISO standards. The batch certificates for the mixing cylinders are also available to download online.
blue scale, ring graduations, with standard ground joint and ergonomic polyethylene stopper, with batch certificate and certificate of conformity
Typical applications: diluting solutions, mixing several components with specified proportions.
Cat. No.
Stopper size
Accuracy limits (mL)
Graduation (mL)
Pack Unit
Capacity (mL)
d (OD) (mm)
h (mm)
d
246180856 246181458 246181758 246182454 246183656 246184455 246185451 246186353
10 14 25 21 50 25 100 29 250 39 500 53 1000 65 2000 85
156
10/19
0.1
0.2 0.5
2 2 2 2 2 2 1 1
A 500 500 ml
SCHO
DURAN
190 14/23 222 19/26 287 24/29 363 29/32 395 34/35 500 45/40 540 45/40
0.25
450
h
400
0.5 0.5
1 1 2 5
350
300
250
200
1
150
100
2.5
50
5
10 20
10
93
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