BS EN ISO 21587-1:2007

This standard BS EN ISO 21587-1:2007 Chemical analysis of aluminosilicate refractory products (alternative to the X-ray fluorescence method) is classified in these ICS categories:

• 81.080 Refractories

This part of ISO 21587 specifies reagents, dissolution and gravimetric silica analysis for the chemical analysis of aluminosilicate refractory products and raw materials.

This part of ISO 21587 gives alternatives to the X-ray fluorescence (XRF) method given in ISO 12677:2003, Chemical analysis of refractory products by XRF — Fused cast bead method.

This part of ISO 21587 should be used in conjunction with ISO 21587-2 and ISO 21587-3, which give the analytical procedures for 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)