PBS-19 Iron Ore
PBS-19 is a certified reference material (CRM) manufactured from goethite-rich iron ore sourced from the Pilbara region of Western Australia. Certified in accordance with ISO 11459:1997, this CRM is designed for rigorous quality control in laboratories performing XRF lithium-borate fusion and multi-temperature Loss on Ignition (LOI) analysis.
Key Features
- Certified concentrations for major and trace elements.
- Mineralogy (XRD): Goethite (65%), Hematite (15%), Amorphous content (18%), Quartz (2%).
- Produced via drying (105°C), crushing, milling, and homogenization to ensure excellent homogeneity.
- Certified through a 13-laboratory round robin, including ISO 17025-accredited labs across Australia, Canada, and Indonesia.
- Supplied in 250g and 1kg sealed plastic jars, with custom packaging available.
- Stable under normal storage conditions; recommended drying at 105°C prior to analysis.
Key Certified Values
|
Analyte |
unit |
Assigned Value |
Standard Deviation |
95% Confidence Interval |
||||
|
Absolute SD |
SD within lab |
SD between lab |
Interval |
lower |
upper |
|||
|
Al2O3 |
% |
2.05 |
0.02 |
0.02 |
0.03 |
0.01 |
2.04 |
2.06 |
|
Fe |
% |
57.05 |
0.24 |
0.23 |
0.30 |
0.14 |
56.91 |
57.19 |
|
LOI1000 |
% |
10.09 |
0.06 |
0.04 |
0.13 |
0.04 |
10.05 |
10.13 |
|
LOI371 |
% |
8.96 |
0.07 |
0.04 |
0.15 |
0.05 |
8.91 |
9.01 |
|
LOI425 |
% |
9.23 |
0.07 |
0.04 |
0.16 |
0.05 |
9.18 |
9.28 |
|
LOI650 |
% |
9.82 |
0.06 |
0.03 |
0.12 |
0.04 |
9.78 |
9.86 |
|
Mn |
% |
0.429 |
0.010 |
0.004 |
0.023 |
0.006 |
0.423 |
0.435 |
|
P |
% |
0.047 |
0.002 |
0.001 |
0.004 |
0.001 |
0.046 |
0.048 |
|
S |
% |
0.022 |
0.002 |
0.001 |
0.005 |
0.001 |
0.021 |
0.023 |
|
SiO2 |
% |
5.20 |
0.06 |
0.04 |
0.12 |
0.04 |
5.16 |
5.24 |
|
TiO2 |
% |
0.103 |
0.007 |
0.002 |
0.016 |
0.004 |
0.099 |
0.107 |
Intended Use
- Monitoring laboratory performance in geochemical analysis of goethite-dominant iron ores.
- Validation of analytical methods for XRF and LOI measurements.
- Calibration of instruments and inter-laboratory proficiency testing.
