The DMT ASHRAE test dust is described in the ANSI / ASHRAE standard. This is used, for example, for filter testing in accordance with EN 779.
Composition
The DMT ASHRAE test dust consists of 72 % test dust A2, 23 % soot and 5 % cut cotton.
Transport and Storage
Partial segregation may occur during transport and storage. It is therefore recommended to homogenize the DMT ASHRAE Test Dust 52.1 & 52.2 before use, which can be achieved by mixing with a laboratory tumbler mixer. Please store in a dry and airtight original container.
Quality ensurance
In order to achieve reproducible quality, the raw materials and production are strictly controlled. The following quality controls are carried out:
Monitoring the particle size distribution of raw materials Monitoring the particle size distribution of the end product
Specification
Name :
DMT ASHRAE Test Dust 52.1 & 52.2
Standard:
DIN EN 779 / ANSI ASHRAE
Title of Standard:
Particulate air filters for general ventilation - Determination of the filtration performance
Composition :
72 % A2 fine 23 % Black carbon 5 % Cut Cotton
Material:
Particle-Fiber-Mixture
largest particle size (µm) :
100
Apperance :
solid
Hardness (Mohs):
-
Colour :
black/grey
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