Highly transparent, with spout and overflow vessel. For density measurements using a hydrometer. Hydrometer can be read through the overflow vessel with a completely filled cylinder. With a raised scale and ring mark at the primary scale points, calibrated "In". Class B tolerances according to DIN 12681/ISO 6706. Hexagonal base with bottom studs provides high stability. Thermal stress up to 80ºC does not cause tolerance limits to be permanently exceeded.