Test dust is a product to evaluate the performance characteristics of domestic used vacuum cleaner. The sand is composed according to DIN EN 60312:2008-11 chapter 18.104.22.168. It is sand with a clearly defined grain size distribution in the range of 0.09 mm – 0.20 mm.
To determine the performance of a vacuum cleaner the sand is spread on and rolled into a standardized carpet. The performance of the vacuum cleaner is the ratio between the hoovered mass and the total mass.