This standard specifies the terms and definitions, requirements, test methods, inspection rules and markings, packaging, transportation and storage of diazonaphthoquinone photosensitive agents for offset printing plates. This standard applies to diazonaphthoquinone photosensitizers for offset printing plates, which are made from esterified novolac resins or polyphenolic compounds and diazonaphthoquinone sulfonyl chloride as raw materials.