Construction of Spectral Discoloration Model for Red Lead Pigment by Aging Test and Simulating Degradation Experiment

Table 3

Particles distribution of the aging samples.

Sample	1#	2#	3#	4#	5#	6#
Max/(μm)	8.21	5.41	3.62	2.52	2.41	2.12
Min/(μm)	0.63	0.5	0.4	0.38	0.21	0.21
Mean/(μm)	2.12	1.78	1.36	1.03	0.79	0.66