DIN EN ISO 21079-2:2008-08
Действует
Chemical analysis of refractories containing alumina, zirconia and silica - Refractories containing 5 % to 45 % of ZrO<(Index)2> (alternative to the X-ray fluorescence method) - Part 2: Wet chemical analysis (ISO 21079-2:2008); German version EN ISO 21079-2:2008
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