PYREX® Test Tubes, Medium Wall, without Rim, 10 x 75 mm, 100 Pack

• Conforms to ISO 4142?• High quality test tubes designed and constructed for optimum performance?• Manufactured from borosilicate glass which gives superior performance to neutral borosilicate and soda-lime glass?• Allows use at high temperatures - up to 500°C?• Ideal for microbiology culture work?• Excellent resistance to chemical attack, Manufactured from borosilicate glass 3.3, High quality test tubes designed and constructed for optimum performance, Allows use at temperatures up to 500°C , Excellent resistance to chemical attack, For advice on the safe heating of glassware, please refer to the care and maintenance section on pages....