ABSTRACT
The numerical value of the gradient b (nm-1) quantifies the dependence of yellowing on the wavelength of irradiation. The plots describing the action spectra for yellowing of PVC formulations are shown in Fig. 4.
The numerical value of the gradient b (nm-1) quantifies the dependence of yellowing on the wavelength of irradiation. The plots describing the action spectra for yellowing of PVC formulations are shown in Fig. 4.