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NA 062

DIN Standards Committee Materials Testing

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DIN EN ISO 28721-1 [CURRENT] references following documents:

Document number Edition Title
ISO 28721-4 2015-11 Vitreous and porcelain enamels - Glass-lined apparatus for process plants - Part 4: Quality requirements for glass-lined flanged steel pipes and flanged steel fittings More 
ISO 28721-5 2016-02 Vitreous and porcelain enamels - Glass-lined apparatus for process plants - Part 5: Presentation and characterization of defects More