PBS-59
PBS-59 is a certified reference material (CRM) produced from pulverised magnetite ore sourced from a Western Australian mine. Certified in accordance with ISO Guide 35, PBS-59 is designed for rigorous quality control and validation of methods in geochemical and metallurgical laboratories performing XRF fusion, Davis Tube Recovery (DTR), Loss on Ignition (LOI), and Particle Size Distribution (PSD) measurements.
Key Features
- Certified concentrations for major and minor elements in both head and Davis Tube magnetic concentrate.
- Manufactured through a multi-stage process involving drying, crushing and blending to ensure excellent homogeneity.
- Certified via a multi-laboratory round robin involving 8 laboratories across Australia.
- Supplied in 1kg press-sealed plastic jars, with 10g sachets available upon request for blind laboratory submissions.
- Stable under standard storage conditions with a 10 year certificate validity.
Key Values
Head of CRM (via Fusion XRF, % w/w)
|
Analyte |
unit |
Value |
Standard Deviation |
95% Conf. Int. |
||
|
1 SD |
1 SD Within Lab |
lower |
upper |
|||
|
Fe |
% |
32.82 |
0.121 |
0.087 |
32.72 |
32.92 |
|
SiO2 |
% |
46.45 |
0.141 |
0.133 |
46.37 |
46.53 |
|
Al2O3 |
% |
0.564 |
0.0327 |
0.0142 |
0.538 |
0.591 |
|
Mn |
% |
0.064 |
0.0042 |
0.0018 |
0.061 |
0.068 |
|
CaO |
% |
1.230 |
0.0120 |
0.0080 |
1.220 |
1.240 |
|
P |
% |
0.069 |
0.0011 |
0.0006 |
0.068 |
0.070 |
|
MgO |
% |
2.16 |
0.022 |
0.0090 |
2.140 |
2.190 |
|
K2O |
% |
0.429 |
0.0078 |
0.0027 |
0.421 |
0.436 |
|
Na2O |
% |
0.644 |
0.0191 |
0.0071 |
0.628 |
0.660 |
|
LOI 1000 |
% |
1.34 |
0.050 |
0.051 |
1.32 |
1.35 |
Davis Tube Magnetite Concentrate (via Fusion XRF, % w/w)
|
Analyte |
unit |
Value |
Standard Deviation |
95% Conf. Int. |
||
|
1 SD |
1 SD Within Lab |
lower |
upper |
|||
|
Fe |
% |
67.92 |
0.579 |
0.352 |
67.48 |
68.36 |
|
SiO2 |
% |
5.11 |
0.638 |
0.249 |
4.57 |
5.65 |
|
Al2O3 |
% |
0.11 |
0.026 |
0.012 |
0.09 |
0.13 |
|
CaO |
% |
0.122 |
0.0195 |
0.0117 |
0.108 |
0.137 |
|
P |
% |
0.009 |
0.0017 |
0.0008 |
0.007 |
0.010 |
|
MgO |
% |
0.359 |
0.0325 |
0.0246 |
0.339 |
0.380 |
|
K2O |
% |
0.077 |
0.0106 |
0.0050 |
0.068 |
0.085 |
|
Na2O |
% |
0.097 |
0.0209 |
0.0125 |
0.080 |
0.114 |
|
LOI 1000 |
% |
–2.94 |
0.108 |
0.084 |
-3.00 |
–2.87 |
Additional Parameters
- DTW Mass Recovery: 32.90% ± 0.971%
Intended Use
- Monitoring and calibration of XRF fusion for iron ore and magnetite analysis.
- Validation of Davis Tube Recovery (DTR) and mass yield calculations.
- Calibration and validation of PSD measurements via both laser diffraction and wet sieve methods.
