BostonMed Supply Test Tube Series features high-quality PP (polypropylene) and PS (polystyrene) construction, providing excellent clarity, smooth finish, and strong chemical resistance. The PP test tubes are durable against weak acids, weak bases, organic solvents, and heat, making them ideal for a wide range of laboratory applications. Our collection includes both flat-bottom and round-bottom designs, as well as various lengths to meet your specific requirements.