Heathrow Scientific 2307A-20 Volumetric Flask, Amber, Class A, Glass Stopper, 20 mL, 6/pk

Heathrow Scientific 2307A-20 Volumetric Flask, Amber, Class A, Glass Stopper, 20 mL, 6/pkVolumetric flasks are constructed of low actinic amber glass, providing protection for materials that are sensitive to light. Each flask features machine blown bodies and heavy beaded, heavy tubing necks that are tooled for standard taper glass stoppers. Each volumetric flask is supplied with a standard taper glass stopper which provides a leakproof seal. This airtight seal not only preserves the integrity of your samples but also enhances the

Volumetric flasks are constructed of low-actinic amber glass, providing protection for materials that are sensitive to light. Each flask features machine-blown bodies and heavy-beaded, heavy-tubing necks that are tooled for standard taper glass stoppers. Each volumetric flask is supplied with a standard taper glass stopper which provides a leakproof seal. This airtight seal not only preserves the integrity of your samples but also enhances the reliability of your volumetric measurements.

Features:
Low-actinic amber for light sensitive materials
Made of premium borosilicate glass with a low coefficient of expansion
Designed “to contain” with a temperature of calibration at 68°F (20°C)
The graduation line is sharply defined and of uniform width
Each flask has a large marking square and includes a glass stopper
Wide range of sizes available (10 mL to 1000 mL)
Meets ASTM E-288 Class A specifications & USP standards for glassware
Stopper No.9