Test Tube – Borosilicate, wo/Rim, A Grade, 24 x 150mm. High quality Test Tubes at an affordable price, made in Europe from borosilicate for extreme durability in your laboratory. Designed to withstand high temperatures and the harshest chemicals. Leading European manufacturer, with over 175 years of experience making borosilicate glass. Used in Chemistry, Pharmacy, Health, Biology and Food applications.