Using the procedure described in B.1, a series of prints is made cover ing at least the range of ink film
thicknesses specified in 5.3 and preferably beyond for higher precision. For this test a black paper is used. For
availability of such a substrate see footnote in clause 4.2.2.
For the determination of transparency each strip of black substrate should be coded a nd the colour of the
black measured on each, in a defined area, prior to overprinting with the test inks over the range of ink film
thicknesses specified.
After the samples which have been printed with the test inks are dry, the colour of each sample should be
measured as described earlier, in the same place as it was measured for the black.