Graduated cylinders, Class B

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Graduated cylinders, Class B

Product and ordering information for Graduated Cylinders, Class B. Tall-form cylinders are calibrated “to contain”. Hexagonal base design for greater stability.  Available in highly transparent PP (polypropylene) or crystal clear SAN (styrene acrylonitrile copolymer).

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Description

These tall-form cylinders are calibrated “to contain” Class B per DIN 12681 and ISO 6706 and have a hexagonal base design for greater stability. Available in highly transparent PP (polypropylene) or crystal clear SAN (styrene acrylonitrile copolymer), with molded graduations with or without overprint screening. PP cylinders can tolerate temperatures of up to 80°C, while the SAN cylinders can tolerate temperatures of up to 60°C, without causing permanent exceeding of tolerance limits.

Product No. & Specs



Class B Graduated Cylinders, PP

  Volume
   mL
Tolerance
± mL
Graduation
mL
Height
mm
Diameter
mm
Qty/Pack
Cat. No.
  10
0.20
0.20
145
15
12
V646081
  25
0.50
0.50
170
22
12
V647081
  50
1.00
1.00
200
27
12
V648081
  100
1.00
1.00
250
33
12
V649081
  250
2.00
2.00
315
44
6
V650081
  500
5.00
5.00
360
58
6
V651081
  1000
10.00
10.00
440
69
6
V652081
  2000
20.00
20.00
482
97
3
V653081
• Molded graduations with blue screened overprint for legibility
• Temperatures of 60°C must not be exceeded (including cleaning) to maintain accuracy and preserve overprint


Class B Graduated Cylinders, PP

  Volume
   mL
Tolerance
± mL
Graduation
mL
Height
mm
Diameter
(mm)
Qty/Pack
Cat. No.
  10
0.20
0.20
145
15
12
V646941
  25
0.50
0.50
170
22
12
V647941
  50
1.00
1.00
200
27
12
V648941
  100
1.00
1.00
250
33
12
V649941
  250
2.00
2.00
315
44
6
V650941
  500
5.00
5.00
360
58
6
V651941
  1000
10.00
10.00
440
69
6
V652941
  2000
20.00
20.00
482
97
3
V653941
• Molded graduations with ring marks at major increments
• Temperatures of 60°C must not be exceeded (including cleaning) to maintain accuracy and preserve overprint
• Food-safe according to EC Directive No. 10/2011


Class B Graduated Cylinders, SAN

  Volume
   mL
Tolerance
± mL
Graduation
mL
Height
mm
Diameter
mm
Qty/Pack
Cat. No.
  10
0.20
0.20
140
16
12
V64691
  25
0.50
0.50
169
21
12
V64791
  50
1.00
1.00
199
28
12
V64891
  100
1.00
1.00
260
34
12
V64991
  250
2.00
2.00
315
47
6
V65091
  500
5.00
5.00
350
61
6
V65191
  1000
10.00
10.00
415
76
6
V65291
  2000
20.00
20.00
482
97
3
V65391
• Molded graduations with ring marks at major increments
• Food-safe according to EC Directive No. 10/2011

FAQs

Are the graduations on your volumetric plasticware molded on the inside, outside, or simply screen printed?

None of the graduations are molded on the interior. They would be very difficult to mold in that way, and would interfere with the accuracy. Exterior molding also allows for a better grip on the item. However, it does differ by product, specifically:

  • Graduated cylinders: All models have molded graduations. Some have screened overprint.
  • Volumetric flasks: All models have a scored graduation, with coloring added.
  • Erlenmeyer flasks: All models have screen printed graduations.
  • Griffin Beakers: Most models have molded graduations (with the exception cat. no. V110204-V111004, ETFE Griffin beakers, and some small volume sizes). Some have screened overprint.
  • Graduated pitchers: All models, with the exception of the nesting models, have molded graduations. Some have screened overprint. Nesting models have printed graduations.

How should I clean my volumetric plasticware?

Polyolefins, such as PP and PMP, as well as fluoroplastics (ETFE), have water-repellent surfaces that are very durable and easy to clean. For cleaning, depending on the level of contamination, commercially available neutral or alkaline detergents (i.e. Mucasol) can be used. Please note that no scrubbing agents or scouring pads should be used for labware made from plastics.
Plastic labware can be cleaned and dried in a laboratory diswasher, noting the temperature limits of the individual products. Due to their light weight, securing the labware with washing nets is recommended; and plastic-coated wire baskets will better protect against scratching.
Plastic labware can also be cleaned in an ultrasonic bath. However, direct contact with the acoustic membrane should be avoided.

Can I autoclave my volumetric plasticware?

The product description and/or specifications state whether or not the product can be autoclaved (note the temperature limits!). If the product is autoclavable, the recommended protocol is 20 minutes at 121°C (2 bar), according to DIN EN 285.
Prior to autoclaving plastic labware, ensure that no residual contamination remains on the item. Otherwise, the residual contamination will bake on solidly during the autoclaving process. Even substances that have no effect on the plastic at room temperature can have negative effects on the plastic during the autoclaving process, including persistant clouding. Additionally, microorganisms might not be killed effectively if they are protected by the residual contamination.

Notes on autoclaving:
  • Containers with screw tops or stoppers must be open during autoclaving to allow for pressure equalization - Autoclaving of a closed container will lead to the deformation or destruction of the container.
  • Plastic labware should be stood upright on a level surface during autoclaving to avoid shape deformation - Plastic labware should NOT be laid on its side during autoclaving.
  • No mechanical stresses should be present during autoclaving - For example, do not stack items.
  • Do not autoclave any container that contains residual contamination or even rinsing agent.
  • Some transparent plastics can absorb minute quantities of steam, which can lead to reversible clouding. This clouding disappears upon drying.

Tech Info

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Literature

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