Graduated Cylinders, PMP, Class A

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Graduated Cylinders, PMP, Class A

Product and ordering information for Graduated Cylinders, PMP, Class A.  Glass-clear tall-form graduated cylinders calibrated “to contain” & Class A per DIN 12681 and ISO 6706. Certificate supplied.

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Description

These glass-clear tall-form cylinders are calibrated “to contain” and are Class A per DIN 12681 and ISO 6706. Hexagonal base provides stability. Supplied certificate includes mean test value and lot (lot and year are imprinted on product). Thermal stress up to 121°C (autoclaving) does not cause permanent exceeding of the tolerance limits. However, to preserve markings (cat. no. V64604 – V65304), cleaning at no higher than 60°C is recommended. For autoclaving, the design with raised graduations (cat. no. V64614 – V65414) is recommended.

Product No. & Specs



Class A Graduated Cylinders, PMP, Certified

  Volume
   mL
Tolerance
± mL
Graduation
mL
Height
mm
Diameter
mm
Qty/Pack
Cat. No.
  10
0.10
0.20
145
15
2
V64614
  25
0.25
0.50
170
22
2
V64714
  50
0.50
1.00
200
27
2
V64814
  100
0.50
1.00
250
33
2
V64914
  250
1.00
2.00
315
44
2
V65014
  500
2.50
5.00
360
58
1
V65114
  1000
5.00
10.00
440
69
1
V65214
  2000
10.00
20.00
535
97
1
V65414
• Molded graduations with red screened overprint for legibility

Class A Graduated Cylinders, PMP, Certified

  Volume
   mL
Tolerance
± mL
Graduation
mL
Height
mm
Diameter
mm
Qty/Pack
Cat. No.
  10
0.10
0.20
145
15
2
V64604
  25
0.25
0.50
170
21
2
V64704
  50
0.50
1.00
200
27
2
V64804
  100
0.50
1.00
250
33
2
V64904
  250
1.00
2.00
315
44
2
V65004
  500
2.50
5.00
360
58
1
V65104
  1000
5.00
10.00
440
69
1
V65204
  2000
10.00
20.00
482
97
1
V65304
• Molded graduations with ring marks at major increments

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.

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