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ISO 28706-1:2008PublishedVitreous and porcelain enamels — Determination of resistance to chemical corrosion — Part 1: Determination of resistance to chemical corrosion by acids at room temperatureISO 28721-2:2025PublishedVitreous and porcelain enamels — Glass-lined apparatus for process plants — Part 2: Designation and specification of resistance to chemical attack and thermal shockISO 28721-1:2019PublishedVitreous and porcelain enamels — Glass-lined apparatus for process plants — Part 1: Quality requirements for apparatus, components, appliances and accessoriesISO 28721-5:2016PublishedVitreous and porcelain enamels — Glass-lined apparatus for process plants — Part 5: Presentation and characterization of defectsISO 28721-4:2015PublishedVitreous and porcelain enamels — Glass-lined apparatus for process plants — Part 4: Quality requirements for glass-lined flanged steel pipes and flanged steel fittingsISO 28721-3:2008PublishedVitreous and porcelain enamels — Glass-lined apparatus for process plants — Part 3: Thermal shock resistanceISO 28722:2008PublishedVitreous and porcelain enamels — Characteristics of enamel coatings applied to steel panels intended for architectureISO 28723:2008PublishedVitreous and porcelain enamels — Determination of the edge covering on enamelled steel plate to be used in heat exchangersISO 28762:2010PublishedVitreous and porcelain enamels — Enamel coatings applied to steel for writing surfaces — SpecificationISO 28763:2019PublishedVitreous and porcelain enamels — Regenerative, enamelled and packed panels for air-gas and gas-gas heat exchangers — SpecificationsISO 28764:2015PublishedVitreous and porcelain enamels — Production of specimens for testing enamels on sheet steel, sheet aluminium and cast ironISO 28765:2022PublishedVitreous and porcelain enamels — Design of bolted steel tanks for the storage or treatment of water or municipal or industrial effluents and sludgesISO/PRF 4531Under developmentVitreous and porcelain enamels — Release from enamelled articles in contact with food — Methods of test and limitsISO/PRF 11177Under developmentVitreous and porcelain enamels — Inside and outside enamelled valves and pressure pipe fittings for untreated and potable water supply — Quality requirements and testingISO/PRF 28706-4Under developmentVitreous and porcelain enamels — Determination of resistance to chemical corrosion — Part 4: Determination of resistance to chemical corrosion by alkaline liquids using a cylindrical vesselISO/PRF 28706-2Under developmentVitreous and porcelain enamels — Determination of resistance to chemical corrosion — Part 2: Determination of resistance to chemical corrosion by boiling acids, boiling neutral liquids, alkaline liquids and/or their vapoursISO 2178:1982WithdrawnNon-magnetic coatings on magnetic substrates — Measurement of coating thickness — Magnetic methodISO 2722:1997WithdrawnVitreous and porcelain enamels — Determination of resistance to citric acid at room temperatureISO 2722:1973WithdrawnVitreous and porcelain enamels — Determination of resistance to citric acid at room temperatureISO 2723:1995WithdrawnVitreous and porcelain enamels for sheet steel — Production of specimens for testingISO 2723:1973WithdrawnVitreous and porcelain enamels for sheet steel — Production of specimens for testingISO 2724:1973WithdrawnVitreous and porcelain enamels for cast iron — Production of specimens for testingISO 2733:1983WithdrawnVitreous and porcelain enamels — Apparatus for testing with acid and neutral liquids and their vapoursISO 2734:1997WithdrawnVitreous and porcelain enamels — Apparatus for testing with alkaline liquidsISO 2734:1983WithdrawnVitreous and porcelain enamels — Apparatus for testing with alkaline liquids