PBS-29
PBS-29 is a goethite-rich iron ore certified reference material (CRM), sourced from the Pilbara region of Western Australia and certified in accordance with ISO 11459 and ISO Guide 35. This CRM is designed for quality control (QC) of XRF and TGA analysis, providing reliable validation for laboratories analyzing iron ores with significant goethite content.
Key Features
- Certified concentrations for major elements (Fe, SiO₂, Al₂O₃) and trace components
- High goethite content (50% by XRD), ideal for labs processing hydrated iron ores
- Produced via multi-stage crushing, milling, and homogenization to ensure uniformity
- Supplied in 1kg press-sealed plastic jars, with 10g sachets available upon request for blind laboratory submissions.
- Stable under normal storage conditions, with recommended drying at 105°C before use
Key Certified Values
|
Analyte |
Certified Value (y) |
Standard Deviation (s) |
95% Confidence Interval (CI) |
||
|
1 SD |
1 SD Within Lab |
lower |
upper |
||
|
Fe |
51.21 |
0.207 |
0.139 |
51.11 |
51.31 |
|
SiO2 |
12.56 |
0.098 |
0.040 |
12.50 |
12.62 |
|
Al2O3 |
3.69 |
0.030 |
0.026 |
3.67 |
3.70 |
|
TiO2 |
0.245 |
0.0052 |
0.0030 |
0.242 |
0.248 |
|
Mn |
1.284 |
0.0201 |
0.0054 |
1.271 |
1.297 |
|
CaO |
0.085 |
0.0047 |
0.0021 |
0.082 |
0.088 |
|
P |
0.054 |
0.0016 |
0.0010 |
0.053 |
0.055 |
|
S |
0.030 |
0.0009 |
0.0008 |
0.030 |
0.031 |
|
K2O |
0.090 |
0.0017 |
0.0015 |
0.089 |
0.090 |
|
LOI371 |
6.35 |
0.043 |
0.012 |
6.32 |
6.38 |
|
LOI425 |
6.64 |
0.049 |
0.015 |
6.59 |
6.68 |
|
LOI650 |
7.50 |
0.042 |
0.013 |
7.47 |
7.53 |
|
LOI1000 |
7.86 |
0.031 |
0.013 |
7.84 |
7.89 |
Intended Use
- QC monitoring for XRF/TGA analysis of goethite-rich iron ores
- Validation of laboratory precision in hydrated mineral analysis
- Calibration of instruments for geochemical testing
