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 edition of the referenced document (including any amendments) applies.
ISO 648, Laboratory glassware – – Single-volume pipettes ISO 3696, Water for analytical laboratory use一Specification and test methods ISO 6344-2, Coated abrasives一Grain size analysis一Part 2: Determination of grain size distribution of macrogrits P12 to P220 ISO 6370-1:1991, Vitreous and porcelain enamels一Determination of the resistance to abrasion一Part 1: Abrasion testing apparatus ISO 28764, Vitreous and porcelain enamels一Production of specimens for testing enamels on sheet steel,sheet aluminium and cast iron.No terms and definitions are listed in this document.ISO and IEC maintain terminological databases for use in standardization at the following addresses:ISO Online browsing platform: available at https://www.iso.org/obp一IEC Electropedia: available at http://www.electropedia.org/Mounting of three similarly enamelled test specimens and three reference glass plates in the testing apparatus. Simultaneous exposure of the separated test specimens and reference glass plates to the abrasion attack of a mixture of fused aluminium oxide grains, steel balls and water for three periods of. Start the oscillating table of the abrasion testing apparatus for a period of 30 min土1 min,corresponding to 9 000 rotations土300 rotations. Then, remove the specimens and reference glass plates,and thoroughly rinse the test specimens, the reference glass plates, the retaining rings and the sealing rings under running water. Dry the test specimens and reference glass plates in air and replace them on the abrasion testing apparatus with a fresh abrading charge (see 8.3). The steel balls may be used again after thorough cleaning.If the thickness of the enamel coat to be tested is less than 0,2 mm, it is recommended to weigh the test specimen before the next test period.Start the oscillating table for a further period of 30 min and then repeat the whole procedure a third time. If the vitreous and porcelain enamel coat being tested has already disappeared, interrupt the test.BS ISO 6370-2 pdf download.