PBS-72
PBS-72 is a certified reference material (CRM) manufactured from iron ore and prepared in accordance with ISO 11459 and ISO Guide 35. This CRM is designed for quality control in chemical analysis of iron ore, ensuring accuracy and reliability in laboratory testing.
Key Features
- Certified concentrations for major, minor, and trace elements.
- Produced via multi-stage crushing, milling (target p95@53µm), and homogenisation.
- Certified through a robust inter-laboratory program involving 32 laboratories, with statistical outlier removal for precision.
- Supplied in 1kg press-sealed plastic jars, with 10g sachets available upon request for blind laboratory submissions.
- Stable under normal storage conditions in sealed packaging.
Key Certified Values
|
Analyte |
Value |
Standard Deviation |
95% Conf. Int. |
||
|
1 SD |
1 SD Within Lab |
lower |
upper |
||
|
Fe |
62.38 |
0.194 |
0.133 |
62.32 |
62.44 |
|
SiO2 |
3.65 |
0.036 |
0.026 |
3.63 |
3.66 |
|
Al2O3 |
2.14 |
0.024 |
0.019 |
2.13 |
2.14 |
|
TiO2 |
0.105 |
0.0042 |
0.0024 |
0.104 |
0.106 |
|
Mn |
0.404 |
0.0070 |
0.0026 |
0.402 |
0.406 |
|
P |
0.064 |
0.0016 |
0.0012 |
0.063 |
0.064 |
|
K2O |
0.041 |
0.0015 |
0.0009 |
0.040 |
0.041 |
|
CaO |
0.053 |
0.0029 |
0.0015 |
0.052 |
0.054 |
|
Sr |
0.059 |
0.0028 |
0.0019 |
0.057 |
0.060 |
|
V |
0.020 |
0.0010 |
0.0005 |
0.019 |
0.020 |
|
LOI371 |
2.90 |
0.046 |
0.029 |
2.86 |
2.95 |
|
LOI425 |
3.04 |
0.060 |
0.037 |
3.01 |
3.07 |
|
LOI650 |
3.61 |
0.040 |
0.027 |
3.60 |
3.63 |
|
LOI1000 |
3.89 |
0.083 |
0.027 |
3.86 |
3.92 |
|
LOI425 to 650 |
0.57 |
0.044 |
0.027 |
0.55 |
0.59 |
Intended Use
PBS-72 is intended for monitoring and validating the accuracy of laboratory analytical methods, particularly for iron ore chemical composition testing. It is recommended to dry the material at 105°C before use to correct for hygroscopic moisture.
