Pyrex Borosilicate Glass Class A Heavy Duty EZ Access Wide Mouth Volumetric Flask with
- 100 ml capacity, Class A
- Case of 6 flasks
- EZ Access wide mouth, flat bottom
- No. 16 standard taper ground glass stopper
- Borosilicate glass, sharp permanent graduation line
Updated 2 days ago · Based on the Amazon listing and published specifications, not hands-on testing.
Class A hundred milliliter volumetric flasks with a wide mouth and ground glass stoppers, sold six to a case. They are for accurate microchemical work, not for heating.
As an Amazon Associate I earn from qualifying purchases. ProductDome earns a commission when you buy through links on this page.
ASIN: B009EID5DIModel: 5635-100Category: Volumetric Flasks
Capacitys Available
Need a different one? Pick on Amazon →
Overview
Pyrex designed these EZ Access wide mouth volumetric flasks for microchemical work, calibrated to Class A tolerances. Each is supplied with an interchangeable ground glass stopper, and the graduation line is sharp and permanent.
The reason to buy is the wide mouth, which eases filling and mixing, together with Class A calibration and included stoppers. The limitation is that the listing gives no tolerance figure and conflicts on bottom shape.
Who it's for
Labs making up standards and reagents at small scale where easy filling matters. A lab that needs one flask only, or needs a stated tolerance number, should check the manufacturer data.
Pros and cons
- Class A calibration
- Wide mouth for easy filling
- Ground glass stopper included
- Sharp permanent graduation line
- Tolerance not listed
- Bottom shape fields conflict
- Not for heating
- Case quantity only
Performance notes
A sharp graduation line on the neck sets the volume precisely, and the wide mouth makes adding material easier than on a narrow neck. The ground glass stopper seals the neck for mixing by inversion.
Specifications
| Brand | Pyrex |
|---|---|
| Model | 5635-100 |
| Capacity & performance | |
| Capacity | 100 ml |
| Construction & materials | |
| Material | Borosilicate Glass |
| Other details | |
| Accuracy class | Class A |
| Shape | Flat Bottom |
| Pack quantity | 6 |
| Stopper | No. 16 Standard Taper ground glass |
| Part number | 5635-100 |
Frequently asked questions
Can I swap stoppers between the Pyrex 5635-100 flasks?
The description says each flask is supplied with an interchangeable No. 16 Standard Taper ground glass stopper, with replacements sold under No. 7650.
How do I care for the flasks?
The listing gives no care instructions. Wash by standard lab glassware methods and avoid heating volumetric flasks.
How many flasks come in the case?
Six, per the title and number of items.