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|63<br />
A<br />
The detection limits determined by the VDI-Richtlinie 2449 page 1 as absolute<br />
units are:<br />
formaldehyde<br />
10 ng<br />
glutardialdehyde<br />
30 ng<br />
toluene diisocyanate (TDI) 1 ng<br />
diphenylmethane-4,4'-diisocyanate (MDI) 4 ng<br />
hexamethylene diisocyanate (HDI) 1 ng<br />
and related to a sampling volume for 20 L:<br />
formaldehyde<br />
0.40 ppb<br />
glutardialdehyde<br />
0.36 ppb<br />
toluene diisocyanate (TDI) 0.007 ppb<br />
diphenylmethane-4,4'-diisocyanate (MDI) 0.019 ppb<br />
hexamethylene diisocyanate (HDI) 0.007 ppb<br />
These methods allows the measurement far below the occupational exposure limits.<br />
2.17 Quality Control for Dräger-<strong>Tubes</strong><br />
Dräger-<strong>Tubes</strong> are normally used for the quantitative<br />
determination of contaminants in the air. The need to<br />
measure these contaminants may happen on a<br />
moments notice. A major advantage of the Dräger-<br />
Tube method is its constant state of readiness to<br />
provide answers during emergencies or routine<br />
monitoring. The extensive quality control program in<br />
operation at Dräger Safety AG & Co. KGaA provides<br />
the customer of a quality product that can be relied<br />
upon time and time again.<br />
D-1242-2009<br />
Dräger-Tube quality control warehouse<br />
The development, production, and testing of Dräger-<br />
<strong>Tubes</strong> is done within the context of the Dräger<br />
quality system, an established company standard. This standard contains as a basic<br />
document, the Dräger quality handbook and other detailed quality standards as
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