BS ISO 6370-2:2020 pdf free.Vitreous and porcelain enamels -Determination of the resistance to abrasion.Loss in mass after sub-surface abrasion. BS ISO 6370-2 The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest...