Do the instruction changes affect how I should make measurements using either Coarse Minus or X-Coarse Plus grades?
No. Coarse Minus or X-Coarse Plus grades should continue to be used to check measurements made at the upper and lower ends of Press-O-Film’s primary range (0.8 to 4.5 mils or 20 to 115 um). At present, replica film for both of these check grades is manufactured using the old chemistry, but we will be switching over to the new formulation for these products as well sometime in 2011.
