Translucent polypropylene graduated cylinders are manufactured with raised graduations at the ­primary scale points. Cylinders have a hexagonal base and are calibrated “To Contain”. Tolerances according to ISO 6706. Exposure to temperatures above 60°C may affect accuracy. Translucent polypropylene graduated cylinders are manufactured with raised graduations at the ­primary scale points. Cylinders have a hexagonal base and are calibrated “To Contain”. Tolerances according to ISO 6706. Exposure to temperatures above 60°C may affect accuracy.