IMS-471
IMS-471 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, ideal for alumina refining and metallurgical 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 |
44.24 |
0.146 |
0.092 |
44.14 |
44.35 |
|
SiO2 |
2.82 |
0.044 |
0.022 |
2.78 |
2.85 |
|
Fe2O3 |
26.87 |
0.119 |
0.094 |
26.79 |
26.95 |
|
TiO2 |
2.40 |
0.024 |
0.006 |
2.38 |
2.42 |
|
MnO |
0.014 |
0.0044 |
0.0020 |
0.011 |
0.018 |
|
P2O5 |
0.108 |
0.0038 |
0.0028 |
0.105 |
0.110 |
|
SO3 |
0.073 |
0.0056 |
0.0020 |
0.067 |
0.078 |
|
MgO |
0.029 |
0.0057 |
0.0029 |
0.024 |
0.035 |
|
K2O |
0.037 |
0.0061 |
0.0025 |
0.032 |
0.042 |
|
LOI1000 |
23.15 |
0.104 |
0.071 |
23.08 |
23.22 |
Intended Use
- QC monitoring for XRF, TGA, and caustic digestion methods in alumina refineries and mining laboratories.
- Method validation for reactive silica and available alumina measurements under low/high-temperature conditions.
