1 Scope
This part of ISO 20565 specifies flame atomic absorption spectrometry (FAAS) and inductively coupled plasma
atomic emission spectrometry (ICP-AES) methods for the chemical analysis of chrome-bearing
refractory products and chrome-bearing raw materials.
It is applicable in the ranges of determination given in Table 1.
ISO 20565
gives alternatives to the X-ray fluorescence (XRF) method given in ISO 12677.
Table 1
—
Range of determination (% by mass)
| Component |
Range |
| SiO2
|
0,5 to 10 |
| Al2O3
|
2 to 30 |
| Fe2O3
|
0,5 to 25 |
| TiO2
|
0,01 to 1 |
| MnO |
0,01 to 1 |
| CaO |
0,01 to 3 |
| MgO |
15 to 85 |
| Na2O |
0,01 to 1 |
| K2O |
0,01 to 1 |
| Cr2O3
|
2 to 60 |
| ZrO2
|
0,01 to 0,5 |
| P2O5
|
0,01 to 5 |
| LOI |
-0,5 to 5 |
NOTE These values are after the loss on ignition (LOI) has been taken into account.
|