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Pyrex® 5640-4L
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Pyrex® Class A Heavy Duty Long Neck Volumetric Flask with Pennyhead Glass Stopper, 4 L

Volumetric Flask, 4 L, 205 OD x 480 mm H, Borosilicate Glass, Class A, Graduated, ±1 ml Tolerance, Heavy Duty, Flat Bottom, Long Neck, Number 38 Standard Taper Stopper, with Glass Pennyhead Stopper, Reusable

  • Manufacturer Part No: 5640-4L
  • SECO Part No: 12-6990-91
  • Sold As:
  • Availability: loading

These Pyrex® 4 L 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 number 38 standard taper pennyhead 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.

Capacity : 4 L
Height : 480 mm
Material (ml/min) : Borosilicate Glass
Stopper Material : Glass
Stopper Type : Pennyhead
Type : Heavy-duty
Class : Class A
Standard Taper Stopper : Number 38
Tolerance : ±1 ml
Diameter : 205 mm OD
Bottom Style : Flat
Flask Style : Volumetric
Graduations : Yes
Neck Style : Long
Top Style : Standard Taper Stopper
Usage : Reusable
  • ASTM Certified

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