PBS-222
PBS-222 is a certified reference material (CRM) manufactured from Pilbara iron ore, prepared and certified in accordance with ISO Guide 35:2017 and ISO 17034:2016. Designed for quality control (QC) of XRF and TGA analysis, this CRM ensures accuracy and traceability in iron ore laboratories, particularly for materials with elevated silica and alumina content.
Key Features
- Certified concentrations for major elements (Fe, SiO₂, Al₂O₃) and trace components.
- High silica (9.33%) and alumina (9.60%) content, ideal for labs analysing complex iron ores.
- Produced via multi-stage crushing, pulverisation, and homogenisation to ensure uniformity.
- Certified through an inter-laboratory program involving 10 ISO/IEC 17025-accredited laboratories, with rigorous statistical validation.
- Supplied in 1kg press-sealed plastic jars, with 10g sachets available upon request for blind laboratory submissions.
- Stable under normal storage conditions, with a 5-year validity period.
Key Certified Values
|
Analyte |
Certified Value (y) |
Standard Deviation (s) |
95% Confidence Interval (CI) |
||
|
1 SD |
1 SD Within Lab |
lower |
upper |
||
|
Fe |
52.08 |
0.168 |
0.113 |
51.97 |
52.18 |
|
SiO2 |
9.33 |
0.049 |
0.023 |
9.30 |
9.36 |
|
Al2O3 |
9.60 |
0.082 |
0.034 |
9.54 |
9.65 |
|
TiO2 |
0.760 |
0.0098 |
0.0020 |
0.752 |
0.768 |
|
Mn |
0.126 |
0.0065 |
0.0022 |
0.121 |
0.131 |
|
CaO |
0.073 |
0.0045 |
0.0027 |
0.070 |
0.076 |
|
P |
0.039 |
0.0009 |
0.0004 |
0.038 |
0.040 |
|
S |
0.034 |
0.0025 |
0.0004 |
0.031 |
0.037 |
|
MgO |
0.080 |
0.0085 |
0.0045 |
0.074 |
0.086 |
|
K2O |
0.024 |
0.0032 |
0.0005 |
0.021 |
0.026 |
|
Na2O |
0.027 |
0.0078 |
0.0043 |
0.020 |
0.035 |
|
LOI371 |
2.68 |
0.042 |
0.011 |
2.60 |
2.69 |
|
LOI650 |
4.84 |
0.040 |
0.020 |
4.81 |
4.88 |
|
LOI1000 |
5.22 |
0.142 |
0.063 |
5.13 |
5.32 |
|
LOI425 to 650 |
1.86 |
0.276 |
0.045 |
1.40 |
2.13 |
|
LOI650 to 1000 |
0.30 |
0.040 |
0.015 |
0.27 |
0.34 |
Intended Use
- QC monitoring for XRF/TGA analysis of iron ores, especially high-silica/alumina varieties.
- Validation of laboratory precision and accuracy in sample preparation and analysis.
- Calibration of instruments for geochemical testing.
