BS EN ISO 21587-2:2007

Foreword
1 Scope
2 Normative references
3 Determination of residual silicon(IV) oxide in solution
4 Determination of aluminium oxide
5 Determination of iron(III) oxide
6 Determination of titanium(IV) oxide
7 Determination of manganese(II) oxide by permanganate
   absorption spectrophotometric method
8 Determination of calcium oxide
9 Determination of magnesium oxide
10 Determination of sodium oxide by flame photometry
11 Determination of potassium oxide by flame photometry
12 Determination of chromium(III) oxide using diphenylcarbazide
13 Determination of zirconium oxide by Xylenol orange
14 Determination of phosphorus(V) oxide by molybdenum blue
15 Test report

Specifies traditional ('wet') methods for the chemical analysis of aluminosilicate refractory products and raw materials.

This part of ISO21587 specifies traditional (\'wet\') methods for the chemical analysis of aluminosilicate refractory products and raw materials.

The methods are applicable to the determination of the following:

• silicon(IV) oxide (SiO₂)

• aluminium oxide (Al₂O₃)

• iron(III) oxide (total iron oxide calculated as Fe₂O₃)

• titanium(IV) oxide (TiO₂)

• manganese(II) oxide (MnO)

• calcium oxide (CaO)

• magnesium oxide (MgO)

• sodium oxide (Na₂O)

• potassium oxide (K₂O)

• chromium(III) oxide (Cr₂O₃)

• zirconium oxide (ZrO₂)

• phosphorous(V) oxide (P₂O₅)

This part of ISO21587 gives alternatives to the X-ray fluorescence (XRF) method given in ISO12677:2003, Chemical analysis of refractory products by XRF— Fused cast bead method.