Diisocyanate Paper-tape monitor IFA reference method         Old device Measurement point 1 Measurement point 2 Measurement point 3 Average HDI 12 22.0* 14.0 14.0 14.0 HDI 25 55.0* 33.0 33.0 33.0 Marked values with * were excluded in the averaging.

Table 3: HDI measurement series 1, March 2013, concentrations in [ppb].