PBS-71
PBS-71 Certified Reference Material
PBS-71 is a pulverised magnetite ore certified reference material (CRM), sourced from a Western Australian mine and certified in accordance with ISO 11459:1997 and ISO Guide 35:2006. This CRM is designed for quality control (QC) of XRF analysis, Davis Tube Recovery (DTR) magnetic separation, and particle size distribution (PSD) measurements, making it ideal for mining, metallurgical, and mineral processing applications.
Key Features
- Certified concentrations for major, minor, and trace elements in both head sample and Davis Tube magnetic concentrate.
- Manufactured through a multi-stage process involving drying, crushing, milling, and homogenization to ensure excellent homogeneity.
- Certified via a multi-laboratory round robin involving 8 laboratories across Australia, with statistical validation of results.
- Supplied in 1kg press-sealed plastic jars, with 10g sachets available upon request for blind laboratory submissions.
- Stable under standard storage conditions, with recommended drying at 105°C prior to use for accurate results.
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 |
% |
30.70 |
0.119 |
0.088 |
30.61 |
30.80 |
|
SiO2 |
% |
47.22 |
0.158 |
0.115 |
47.11 |
47.34 |
|
Al2O3 |
% |
1.46 |
0.024 |
0.013 |
1.44 |
1.48 |
|
TiO2 |
% |
0.073 |
0.0036 |
0.0031 |
0.070 |
0.075 |
|
Mn |
% |
0.118 |
0.0026 |
0.0010 |
0.116 |
0.121 |
|
CaO |
% |
0.496 |
0.0085 |
0.0058 |
0.489 |
0.502 |
|
P |
% |
0.103 |
0.0019 |
0.0009 |
0.102 |
0.105 |
|
S |
% |
0.131 |
0.0016 |
0.0016 |
0.130 |
0.132 |
|
MgO |
% |
2.23 |
0.024 |
0.012 |
2.21 |
2.26 |
|
LOI 1000 |
% |
3.26 |
0.091 |
0.044 |
3.18 |
3.34 |
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 |
% |
62.20 |
0.900 |
0.412 |
61.48 |
62.92 |
|
SiO2 |
% |
11.53 |
0.975 |
0.374 |
10.72 |
12.33 |
|
CaO |
% |
0.151 |
0.0119 |
0.0052 |
0.141 |
0.160 |
|
P |
% |
0.038 |
0.0029 |
0.0013 |
0.036 |
0.041 |
|
LOI 1000 |
% |
-1.76 |
0.141 |
0.082 |
-1.86 |
-1.65 |
Additional Parameters
- DTW Mass Recovery: 34.38% ± 1.3%
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 laser diffraction and wet sieve methods.
- Quality assurance for geochemical and metallurgical testing laboratories.
