Volumetric Flask, Class B

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Volumetric Flask, Class B

Product and ordering information for Volumetric Flask, Class B.  An excellent alternative to glass flasks.  Available in crystal clear PMP or highly transparent PP, with PP stopper caps or screw caps.

Catalog #: N/A Category:
   

Description

An excellent alternative to glass flasks, these plastic volumetric flasks meet Class B tolerances per DIN EN ISO 1042. Gravimetrically calibrated “to contain” at 20°C. Available in crystal clear PMP or highly transparent PP, with PP stopper caps or screw caps. The PMP flasks can tolerate thermal stress of up to 121°C (autoclaving) without permanent exceeding of the tolerance limits (PP flasks up to 60°C). However, to preserve markings, cleaning at no higher than 60°C is recommended.

Product No. & Specs



Class B Volumetric Flask, PMP, with NS Stopper, PP

  Volume
   mL
Tolerance
± mL
Height
mm
Stopper
NS
Qty/Pack
Cat. No. 
  25
0.08
115
10/19
6
V67195 
  50
0.12
150
12/21
6
V67295 
  100
0.20
180
14/23
6
V67395 
  250
0.30
235
19/26
5
V67495 
  500
0.50
270
19/26
4
V67595 
  1000
0.80
310
24/29
3
V67695 


Class B Volumetric Flask, PP, with NS Stopper, PP

  Volume
   mL
Tolerance
± mL
Height
mm
Stopper
NS
Qty/Pack
Cat. No.
  10
0.08
90
10/19
6
V677941
  25
0.08
115
10/19
6
V671941
  50
0.12
150
12/21
6
V672941
  100
0.20
180
14/23
6
V673941
  250
0.30
235
19/26
5
V674941
  500
0.50
270
19/26
4
V675941
  1000
0.80
310
24/29
3
V676941


Class B Volumetric Flask, PMP, with Screw Caps, PP

  Volume
   mL
Tolerance
± mL
Height
mm
Thread
GL
Qty/Pack
Cat. No.
  10
0.08
90
18
6
V677895
  25
0.08
115
18
6
V671895
  50
0.12
150
18
6
V672895
  100
0.20
180
18
6
V673895
  250
0.30
235
25
5
V674895
  500
0.50
270
25
4
V675895
  1000
0.80
310
32
3
V676895

Class B Volumetric Flask, PP, with Screw Caps, PP

  Volume
   mL
Tolerance
± mL
Height
mm
Thread
GL
Qty/Pack
Cat. No.
  10
0.08
90
18
6
V677891
  25
0.08
115
18
6
V671891
  50
0.12
150
18
6
V672891
  100
0.20
180
18
6
V673891
  250
0.30
235
25
5
V674891
  500
0.50
270
25
4
V675891
  1000
0.80
310
32
3
V676891

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 & Warnings

Plastics Reference Chart

⚠ WARNING – These products can expose you to chemicals including Carbon black (airborne, unbound particles of respirable size), which is known to the State of California to cause cancer, and Di-n-butyl Phthalate (DBP), which is known to the State of California to cause birth defects or other reproductive harm.
For more information go to www.P65Warnings.ca.gov.

Literature

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