wkm Borosilicate Glass Burette | Laboratory & Science Industrial Equipment - Pack 2 Buret  (50 mL)

The burette is made of class borosilicate glass with blue graduations and has a polytetrafluoroethylene (PTFE) plastic plunger stopcock for resistance to chemicals, moisture, and high temperatures. PTFE plastic is a strong, low-friction material that has smooth transfer, high surface release, and nonstick properties. It has high chemical resistance, and resists moisture, high temperatures, flames, thermal expansion, and ultraviolet (UV) exposure. PTFE has low-temperature toughness. The burette has 50 mL capacity with 0.20mL graduation and is suitable for high school or college students.