IMS-440
IMS-440 is a certified reference material (CRM) manufactured from pulverised magnetite ore sourced from a blend of Australian magnetite ores. Prepared and certified in accordance with ISO 17034:2016 and ISO 33405:2024, this CRM is designed for quality control and method validation in laboratories performing XRF fusion, Davis Tube Wash (DTW), acid digestion/titration, Satmagan analysis, and particle size distribution (PSD) measurements.
Key Features
- Certified concentrations for major, minor, and trace elements in both head and DTW magnetite concentrate forms.
- Produced via multi-stage crushing, pulverising, and homogenisation to ensure high uniformity.
- Certified through a comprehensive inter-laboratory program involving multiple ISO 17025 accredited laboratories.
- Supplied in 1kg press-sealed plastic jars, with 10g sachets available upon request for blind laboratory submissions.
- Stable under normal storage conditions, with a 10-year certificate validity.
Key Certified Values
Head of CRM (via Fusion XRF, % w/w)
|
Analyte |
Certified Value (y) |
Standard Deviation (s) |
95% Confidence Interval (CI) |
||
|
1 SD |
1 SD Within Lab (Sw) |
lower |
upper |
||
|
Fe |
30.93 |
0.145 |
0.092 |
30.84 |
31.02 |
|
SiO2 |
53.85 |
0.300 |
0.149 |
53.65 |
54.05 |
|
Al2O3 |
0.53 |
0.017 |
0.012 |
0.52 |
0.54 |
|
TiO2 |
0.040 |
0.0062 |
0.0039 |
0.036 |
0.044 |
|
Mn |
0.092 |
0.0039 |
0.0030 |
0.089 |
0.094 |
|
LOI1000 |
-0.55 |
0.133 |
0.117 |
-0.62 |
-0.49 |
DTW Magnetite Concentrate (via Fusion XRF, % w/w)
|
Analyte |
Certified Value (y) |
Standard Deviation (s) |
95% Confidence Interval (CI) |
||
|
1 SD |
1 SD Within Lab (Sw) |
lower |
upper |
||
|
Fe |
67.63 |
0.385 |
0.329 |
67.27 |
67.98 |
|
SiO2 |
6.28 |
0.321 |
0.300 |
6.02 |
6.55 |
|
Al2O3 |
0.07 |
0.031 |
0.008 |
0.04 |
0.11 |
|
TiO2 |
0.014 |
0.0055 |
0.0017 |
0.008 |
0.020 |
|
Mn |
0.039 |
0.0080 |
0.0030 |
0.030 |
0.047 |
|
LOI1000 |
-3.08 |
0.135 |
0.052 |
-3.22 |
-2.94 |
Additional Parameters
- DTW Mass Recovery: 38.38% ± 0.342
- FeO (via acid digestion/titration): 15.47% ± 0.461
- Fe₃O₄ (via Satmagan): 35.18% ± 0.419
Intended Use
- Monitoring accuracy and precision of XRF fusion analysis for major and trace elements.
- Validating Davis Tube Wash (DTW) separation efficiency and magnetite concentrate composition.
- Calibrating acid digestion/titration (FeO) and Satmagan (Fe₃O₄) methods.
