Diisocyanate Paper-tape monitors   IFA reference method         New device Old device Measurement point 1 Measurement point 2 Measurement point 3 Average HDI 8 8 16* 10.0 10.0 10.0 HDI 18 20 39* 29.0 19.0 24.0 Marked values with * were excluded in the averaging.

Table 4: HDI measurement series 2, November 2013, concentrations in [ppb].