BS EN ISO 20565-3:2008

This standard BS EN ISO 20565-3:2008 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 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.