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BS EN ISO 20565-1:2008
Chemical analysis of chrome-bearing refractory products and chrome-bearing raw materials (alternative to the X-ray fluorescence method) Apparatus, reagents, dissolution and determination of gravimetric silica
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| Označení normy: | BS EN ISO 20565-1:2008 |
| Počet stran: | 28 |
| Vydáno: | 2010-09-30 |
| ISBN: | 978 0 580 72652 1 |
| Status: | Corrigendum |
Popis
BS EN ISO 20565-1:2008
This standard BS EN ISO 20565-1:2008 Chemical analysis of chrome-bearing refractory products and chrome-bearing raw materials (alternative to the X-ray fluorescence method) is classified in these ICS categories:
- 81.080 Refractories
This part of ISO 20565 specifies methods for the chemical analysis of chrome-bearing refractory products and chrome-bearing raw materials, using traditional (“wet”) methods, ICP-AES spectrometry and FAAS spectrometry. It covers apparatus, reagents, dissolution and determination of gravimetric silica.
It is applicable in the ranges of determination given in Table 1.
ISO 20565 provides 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.