Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
|45<br />
A<br />
Dräger Aerotest Navy, complete 65 25 960<br />
The device determines the quantity of hydro steam, oil,<br />
CO 2 , CO and other contaminations in the air flow<br />
supplied by high-pressure compressors or compressed<br />
air at a max. pressure of 300 bar. The pressure is<br />
limited by a pressure reducer. The air to be monitored is<br />
tested by means of a flowmeter. The compressed air is<br />
supplied through a special direct scanning tube, which<br />
analyzes the quantity. The monitoring of the breathable<br />
air quality is performed in accordance with DIN <strong>EN</strong> 12021.<br />
All components of the Aerotest Navy are stored in a handy<br />
carrying case.<br />
ST-1344-2004<br />
Dräger Aerotest Navy, complete<br />
2.9 Proposed Strategy for Determining Gas Hazards<br />
The measurement of air pollution presents a special challenge especially when encountered<br />
at hazardous waste sites, fires, or transportation accidents involving chemicals. In this case, a<br />
risk analysis is hindered by the possible existence of several contaminants in the air.<br />
In addition to portable gas detection instruments, Dräger-<strong>Tubes</strong> and Dräger Chips can be<br />
used for on-site measurements and to assist in the identification of gaseous substances.<br />
Because of the diverse possibilities regarding the substances, it is not possible to only use<br />
a single Dräger-Tube or Chip to determine all the imaginable combinations of gas dangers.<br />
Taking into account certain considerations and experiences, a suggestion for a<br />
measurement strategy has been developed. With this strategy, the time to make a first<br />
classification of the most important substance groups can be considerably shortened.<br />
Of course, every suggestion is more or less the best possible compromise, when the<br />
practicability is complicated by a growing uncertainty.<br />
Multiple test sets<br />
For these special applications, Dräger has developed multiple test sets for carrying out<br />
simultaneous measurements. Each set consists of five specially calibrated tubes assembled<br />
in a rubber fixture. At this time there are two sets available for the measurement of<br />
inorganic combustion gases (Dräger Simultaneous Test-Set I and II) and a third set, for the<br />
measurement of organic substance groups (Dräger Simultaneous Test-Set III).<br />
The use of such multiple measurement devices has substantial advantages compared with<br />
individual Dräger-Tube measurements:
Change language