Corning Pyrex 7100-5 Borosilicate Glass Bulb 5ml Class A Reusable Color-Coded Volumetric
- 5 ml capacity, Class A
- Pack of 12 with a case
- Borosilicate glass, round tip
- Color-coded markings, reusable
- ASTM specification met
Updated 2 days ago · Based on the Amazon listing and published specifications, not hands-on testing.
Reusable Class A five milliliter volumetric pipettes with color-coded markings, sold twelve to a pack in a case. They are fixed-volume pipettes, so they are not for variable dispensing.
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ASIN: B004DGIFEAModel: P6040-5Category: Volumetric Pipettes
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Overview
Pyrex makes this bulb volumetric pipette from borosilicate glass with a round tip and colored markings. It comes in a pack of twelve with a case, and the listing says it is reusable and meets an ASTM specification.
The reason to buy is repeatable fixed volume delivery at Class A accuracy, with color coding to tell sizes apart. The limitation is the listing, which gives no tolerance, tip dimensions or cleaning guidance.
Who it's for
Teaching and analytical labs that wash and reuse glass pipettes for standards and titrations. Users needing adjustable dispensing should use a micropipette.
Pros and cons
- Class A accuracy
- Reusable borosilicate glass
- ASTM specification met
- Fixed volume only
- Tolerance not listed
- Cleaning not described
- Glass can break
Performance notes
A volumetric pipette delivers one stated volume when filled to the mark and drained, so accuracy comes from the glass calibration rather than the user. Color coding helps tell volumes apart at a glance.
Specifications
| Brand | Pyrex |
|---|---|
| Model | P6040-5 |
| Capacity & performance | |
| Capacity | 5 ml |
| Construction & materials | |
| Marking | Borosilicate Glass |
| Included components | |
| Included | Case |
| Other details | |
| Accuracy class | Class A |
| Tip shape | Round Tip |
| Pack quantity | 12 |
| Specification met | Astm |
| Part number | 7100-5 |
Frequently asked questions
How do I clean reusable Pyrex volumetric pipettes?
The listing says reusable but gives no cleaning instructions. Follow your lab's glassware protocol.
What comes in the pack?
Twelve pipettes with a case, according to the specs.
Is this an adjustable pipette?
No. It is a fixed 5 ml volumetric pipette.