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PYREX® 250 mL Class A Volumetric Flasks with PYREX® Glass Standard Taper Stopper

Product Number5640-250

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PYREX® 250 mL Class A Volumetric Flasks with PYREX® Glass Standard Taper Stopper

Quality Certificate

(This is the suggested replacement for 5646-250)

These PYREX® 250 mL volumetric flasks provide improved lab convenience, broad selection and precise volume measurement. The strength of these flasks has been increased appreciably through machine-blown bodies to which are sealed heavy-tubing necks tooled for No. 16 Standard Taper glass stoppers. The graduation line is sharp and permanent and large white block letters make the inscription easy to read. These Class A volumetric flasks have been manufactured to Class A tolerances as established by ASTM E- 694 for volumetric ware, ASTM E-542 for calibration of volumetric ware and ASTM E-288 for volumetric flasks.

One or more facilities manufacturing this product is 100% covered by renewable energy through the purchase of unbundled energy attribute certificates (EACs).

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Product Information

Details

Product Number	5640-250
Qty./Pk	6 / Pk
Qty./Cs	12 / Cs
Brand	PYREX®
Capacity	250 mL
Flask Shape	Flat bottom
Top Style	Standard Taper Stopper
Neck Style	Long
Stopper Style	Hollow glass
Accuracy Class	Class A
Feature	Reusable
Tolerance	0.12 mL
Standard Taper Stopper No.	16
Height	252 mm (approx.)
O.D.	78 mm (approx.)
Flask Style	Volumetric
Flask Feature	Heavy duty

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