Average rating
Cast your vote
You can rate an item by clicking the amount of stars they wish to award to this item.
When enough users have cast their vote on this item, the average rating will also be shown.
Star rating
Your vote was cast
Thank you for your feedback
Thank you for your feedback
Type
ReportLanguage
nl
Metadata
Show full item recordTitle
Praktijkvergelijking van twee typen CO-monitorenTranslated Title
Comparison of two types of CO monitors under field conditionsPubliekssamenvatting
Abstract niet beschikbaarComparative measurements with two types of CO monitors (Philips PW 9775 and TECO model 48) have been carried out on different locations mainly in the city environment. Measurement were carried out on 7 days resulting in 40 hourly average values. The main findings are: - the relation between the measurement results of the two monitors can be described by a quadratic function with the Philips monitor always showing the lower values in the concentration range investigated (0-9 mg CO/m3) ; - the Philips monitor shows a threshold value of 0.10-0.15 mg/m3 ; - the differences observed are concentration dependent, increase from 0 to higher concentrations and reach a maximum of 0.70 mg/m3 at 7.0 mg/m3 (TECO value). Above 7.0 mg/m3 the differences decrease again. The origin of the deviations of the Philips monitor is not known. However the regression equation may be explained by assuming suggests a concentration dependent conversion of CO into I2 in the converter unit of the Philips monitor.
Sponsors
RIVMCollections