D. Kuchenbecker et al., COMPARISON OF 2 SAMPLING METHODS FOR DETERMINING FORMALDEHYDE CONCENTRATIONS IN WORKPLACE AIR, Staub, Reihhaltung der Luft, 53(4), 1993, pp. 143-145
Two sampling methods for formaldehyde were tested simultaneously under
laboratory and workplace conditions in the institute for pathology of
the University Leipzig. The first method (DFG-method) makes use of a
silicagel tube to collect formaldehyde from the air. The second method
(TGL-standard) consists in separating the water-soluble formaldehyde
from the contaminated air. On account of the fact that the degree of d
esorption of formaldehyde from silicagel is 0.96, it can be stated tha
t the formaldehyde concentrations determined by means of the two sampl
ing methods are equivalent. The analysis of formaldehyde adsorbed on s
ilicagel is more time consuming. However, tubes containing solid adsor
bents should be used for personal sampling at workplaces where employe
es have to move a lot.