Laboratory bottle with wide thread (GLS 80; 80 mm AD). Autoclavable and temperature-resistant (cap and pouring ring: +140°C), gray glass / glass type 1 acc. to USP/EP with retrace code and batch certificate via internet. Due to the wide mouth, the bottles are especially suitable for working with powders and granulates. Filling and emptying with liquid media is significantly improved, especially for great volumes. Special thread means opening takes less than a turn.