BS ISO 2834-1:2020 pdf free.Graphic technology一Laboratory preparation of test prints.Paste inks. BS ISO 2834-1 This document specifies a test procedure for the preparation of test prints on paper, board, metals,foils and other suitable substrates using paste inks, such as for offset and letterpress printing, using electrically driven IGT-type and prifbau-type printability testers. This document describes the procedure for reference optical...