The immission rate measuring device is used to determine liquid and gaseous precipitation.
The measuring device consists of:
- SAM measuring device and the
- Dust measuring device according to Bergerhoff.
In this combination, it is used for simple and cost-effective monitoring of large areas.
1. Dust measuring device according to Bergerhoff
Atmospheric precipitation is collected in containers using a Bergerhoff dust measuring device. The collected sample is then evaporated, and the evaporation residue is determined gravimetrically. The sampling device consists of:
- 1 collecting vessel and
- 1 stand with protective basket.
The collecting container is a standard household preserving jar (DIN 5071) with a nominal diameter of 9.5 cm and a capacity of 1.5 l. With a clear opening of 8.9 cm, the collecting area is 62.2 cm². The jar sits in a standard wire basket, which acts as a bird deterrent thanks to a funnel-shaped extension at the top.
The basket of the measuring device has a Rilasan coating to prevent heavy metal contamination resulting from the material of the basket.
2. SAM measuring device
The measuring device is used to determine gaseous air pollutants.
The method uses platelets that are alkaline and hygroscopic (moist) to store the contaminants. Acidic gaseous air pollutants that overcome the diffusion resistance to the platelets are captured. Later centralized analysis is possible.
The sampling device consists of:
- filter holder ring,
- 4 assembly trains,
- Empty filter,
- standpipe,
- Threaded cap.
The main features of the immission rate measuring device are:
- Low maintenance
- Determination of gaseous air pollutants (moisture disposition)
- good value for money
- quantitative and qualitative collection
