Figure 4. Laboratory produced tideline on Whatman 1 paper after 21 days of artificial
aging as described in the text in white light (left) and UV (right).
Figure 4. Laboratory produced tideline on Whatman 1 paper after 21 days of artificial
aging as described in the text in white light (left) and UV (right).
Permission must be secured from the individual copyright owners to reproduce any copyrighted materials contained within this website. Digital assets without any copyright restrictions are public domain.