Description
This is a description of American Educational Glass Flint Tubing, which is made of soda lime glass and has a lower melting point and chemical resistance than borosilicate glass. It is known as apparatus weight tubing and measures 12mm in outside diameter and 24" in length with a wall thickness of 1.25mm. The tolerances for outside diameter and wall thickness are +/- 0.20mm and +/- 0.05mm, respectively. The tubing has a softening point of 705 degrees Centigrade and an annealing point of 522 degrees Centigrade. It has a solubility of 7.8mL and contains less than 0.01% lead oxide, as well as less than 0.02% arsenic and antimony. The coefficient of expansion is 94.1 x 10.
Flint glass is also known as soda lime glass. It has a lower melting point, chemical resistance, and expansion rate than does borosilicate glass. This tubing is known as apparatus weight tubing. Measures 12mm outside diameter by 24" length; wall thickness: 1.25 millimeters. Outside diameter tolerance: +/- 0.20mm. Wall thickness tolerance: +/- 0.05mm. Softening Point: 705 degree Centigrade. Annealing Point: 522 degree Centigrade. Solbility: 7.8mL. Lead Oxide: less than 0.01 percent. Arsenic and antimony: less than 0.02 percent. Coefficient of Expansion x 10: 94.1.