ISO 12218:1997 PDF

This International Standard establishes unified terminology, test methods and requirements for the process control of the preparation of the offset printing forme.

This International Standard

• applies to pre-sensitized metal plates;
• applies to contact exposures whether in a contact frame, step-and-repeat machine or other automated processor;
• does not apply to optical projection or direct writing techniques, although the principles may be applied by analogy;
• does not apply to non-periodic half-tone screens, although the tone value specifications may be applied by analogy.