DIN EN ISO 4531 E:2017-04 Test methods and limitations for the release of enamels and enamels from enamel articles that come into contact with food (draft)
2022DIN EN ISO 4531:2022-08 Vitreous and porcelain enamels - Release from enamelled articles in contact with food - Methods of test and limits (ISO 4531:2022); German version EN ISO 4531:2022
2021DIN EN ISO 4531:2021 Vitreous and porcelain enamels - Release from enamelled articles in contact with food - Methods of test and limits (ISO/DIS 4531:2021); German and English version prEN ISO 4531:2021
2018DIN EN ISO 4531:2018 Vitreous and porcelain enamels - Release from enamelled articles in contact with food - Methods of test and limits (ISO 4531:2018)
1970DIN EN ISO 4531 E:2017-12 Test methods and limitations for the release of enamels and enamels from enamel articles that come into contact with food (draft)
1970DIN EN ISO 4531 E:2017-04 Test methods and limitations for the release of enamels and enamels from enamel articles that come into contact with food (draft)