One and one half mil thick polypropylene bags are well suited for containing biohazardous waste right at your workstation. Bag can withstand up to 135°C (275°F). Bags are puncture, tear and leak-resistant. Meets 165g dart drop standard to meet ASTM D1709-98. Bags are clearly labeled with biohazard symbol, use guidelines (in English, French and Spanish), identification area and temperature indicator patch to verify proper autoclaving. Includes twist tie closures. Case of 1000.