DIN 51083-3:2004
陶瓷材料的检验.硅酸铝的化学分析.第3部分:分解法

Testing of ceramic materials - Chemical analysis of alumosilicates - Part 3: Decomposition methods

作废

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标准号

DIN 51083-3:2004

发布

2004年

发布单位

德国标准化学会

当前最新

DIN 51083-3:2004

 

 

适用范围

This standard specifies digestion methods for rendering aluminosilicate samples soluble. To take account of the analytical methods specified in other parts of this series of standards and of the possible interferences resulting from the digestion, the following two methods have been adopted. Digestion method A Digestion with hydrofluoric and sulfuric acids followed by alkaline fusion digestion to determine: a) aluminium oxide, AI203, complexometrically as specified in DIN 51083-4; b) titanium(IV) oxide, TiO2, photometrically as specified in DIN 51083-5; c) calcium oxide, CaO, complexometrically as specified in DIN 51083-7 for a CaO content exceeding 10 %; d) phosphorus(V) oxide, P205, photometrically as specified in DIN 51083-9. Digestion method B Digestion with hydrofluoric and sulfuric acids to determine: a) iron(III) oxide, Fe203, by atomic absorption spectrometry (AAS) as specified in DIN 51083-6; b) manganese(Il) oxide, MnO, by AAS as specified in DIN 51083-6; c) calcium oxide, CaO, by AAS as specified in DIN 51083-7 for a CaO content of 10 % or less; d) magnesium oxide, MgO, by AAS as specified in DIN 51083-8; e) e) lithium oxide, Li20, sodium oxide, Na20, and potassium oxide, K20, by flame emission as specified in DIN 51083-10. NOTE The determination of SiO2, including digestion methods, is specified in DIN 51083-2.

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