Vitreous and porcelain enamels - Determination of the edge covering on enamelled steel plate to be used in heat exchangers; (ISO 28723:2008); German version FprEN ISO 28723:2010
Vitreous and porcelain enamels - Regenerative, enamelled and packed panels for air-gas and gas-gas heat exchangers - Specifications (ISO 28763:2008); German version EN ISO 28763:2011— 17 стр.
