PYREX Vista 100 mL Class A Volumetric Flasks with PYREX Glass Standard Taper Stopper
- 100 mL capacity
- Class A volumetric accuracy
- Pack of 6 flasks
- No. 13 standard taper neck, glass stoppers included
- Sharp, permanent graduation line, blue block lettering
Updated 2 days ago · Based on the Amazon listing and published specifications, not hands-on testing.
Class A volumetric flasks for labs that prepare standards to a stated accuracy. The listing gives no tolerance figure, dimensions or weight.
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ASIN: B0GSS5K379Model: 70640-100Category: Volumetric Flasks
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Overview
Filling to the single graduation mark on a sealed neck gives the volume these flasks are made to measure. Each neck is tooled for a standard taper glass stopper, and the stoppers are part of the pack. Large blue letters make the inscription easy to read.
Class A accuracy and stoppers in the same pack are the reason to buy, since a lab can prepare and store standards without extra purchases. The limit is that the listing never states the tolerance and gives no size or weight.
Who it's for
Analytical and teaching groups making standards will use the permanent graduation and the matched stoppers. A user who needs approximate volumes only can look at a lower grade, such as Class B flasks.
Pros and cons
- Class A grade for accurate volumes
- Stoppers included with each flask
- Sharp permanent graduation line
- Large blue block inscription
- Tolerance figure not listed
- Dimensions not listed
- Weight not listed
- Glass breaks if dropped
Performance notes
A single graduation line on the neck defines the volume, so accuracy comes from filling to that line at the stated conditions. A sealed neck with a taper stopper lets the user mix by inversion and store the solution. Class A means the tighter of the two grades, and the exact tolerance is not stated in the listing.
Specifications
| Brand | Pyrex |
|---|---|
| Model | 70640-100 |
| Dimensions & fit | |
| Neck | No. 13 standard taper |
| Capacity & performance | |
| Capacity | 100 mL |
| Included components | |
| Stopper | PYREX glass standard taper stoppers |
| Other details | |
| Pack quantity | 6 flasks |
| Specification met | Class A |
| Part number | 70640-100 |
Frequently asked questions
Which stoppers fit the PYREX Vista 100 mL flasks?
The necks are tooled for No. 13 standard taper glass stoppers, and the title lists PYREX glass standard taper stoppers with the flasks.
Are these PYREX volumetric flasks Class A?
Yes. The title lists Class A.
How many flasks come in a pack?
A pack contains six.
Are these flasks suitable for heating?
The listing does not describe heating use. It describes them as volumetric flasks for volume measurement.