Dust measurement device for air - draws air to be tested through thin walled glass ducts provided with transparent cladding

摘要

The ducts are arranged in a cluster, and after the reception of the dust, can be individually inspected. The individual ducts consist of object carriers (2) for a microscope, made of glass laminations or glass capillaries. The coating of the ducts is carried out with a thin film of liquid e.g. oil. The duct walls are placed in a carriage or a spindle, in order to be examined under a microscope (1). The air is drawn in by a fan (4), through a vol. meter (5), to measure the actual drawn amount of air. The air continuing through (6) contains no dust. USE/ADVANTAGE - Measuring dust in air. Number of ducts can be selected to give required test surface. Facilitates testing of trapped particles under light microscope. High throughput to shorten test time. All sizes of suspended particles from microns to millimeters can be evaluated.