IMS-470
IMS-470 is a pulverised bauxite certified reference material (CRM), sourced from West African bauxite ores and certified in accordance with ISO 33405:2024 and ISO 17034:2016. This CRM is specifically designed for quality control (QC) of XRF, TGA, and low/high-temperature caustic bomb digest analysis, featuring a high-alumina, low-silica composition ideal for alumina refining processes.
Key Features
- Certified concentrations for major and trace elements, including specialty certifications for reactive silica and available alumina at low and high temperatures.
- Produced via multi-stage pulverisation (≤53µm) and homogenisation for exceptional uniformity.
- Supplied in 1kg press-sealed plastic jars, with 10g sachets available upon request for blind laboratory submissions.
- Stable for 10 years when stored sealed under normal conditions.
Key Certified Values
|
Analyte |
Certified Value (y) |
Standard Deviation (s) |
95% Confidence Interval (CI) |
||
|
1 SD |
1 SD Within Lab |
lower |
upper |
||
|
Al2O3 |
46.32 |
0.246 |
0.138 |
46.13 |
46.51 |
|
SiO2 |
2.32 |
0.037 |
0.021 |
2.29 |
2.34 |
|
Fe2O3 |
23.9 |
0.2 |
0.097 |
23.74 |
24.05 |
|
TiO2 |
2.52 |
0.035 |
0.011 |
2.49 |
2.55 |
|
MnO |
0.015 |
0.0044 |
0.0002 |
0.011 |
0.019 |
|
P2O5 |
0.093 |
0.0028 |
0.001 |
0.09 |
0.095 |
|
SO3 |
0.061 |
0.0063 |
0.0015 |
0.056 |
0.066 |
|
MgO |
0.026 |
0.0057 |
0.0022 |
0.019 |
0.033 |
|
K2O |
0.023 |
0.0041 |
0.0016 |
0.02 |
0.026 |
|
LOI1000 |
24.53 |
0.106 |
0.051 |
24.44 |
24.61 |
Intended Use
- QC monitoring for XRF, TGA, and caustic digestion methods in alumina refineries.
- Method validation for reactive silica and available alumina measurements
