MS 133 Pt.D4-1998 Methods of test for paints and varnishes:part d4:comparison of Ccontrast ratio (hiding power) of paints of the same type and colour (first revision)
1998MS 133 Pt.D4-1998 Methods of test for paints and varnishes:part d4:comparison of Ccontrast ratio (hiding power) of paints of the same type and colour (first revision)