IMS-192
Pulverised Basalt Sulphide Au 1.87g/t
IMS-192 is a basalt-hosted gold (Au) certified reference material (CRM) designed for rigorous quality control in fire assay gold analysis for mining and exploration laboratories. Certified in accordance with ISO 17034:2016 and ISO Guide 35:2017, this CRM is a homogenized blend of pulverized basalt spiked with gold, validated across 13 ISO/IEC 17025-accredited laboratories for exceptional reliability.
Key Features
- Certified Au content: 1.87 g/t ± 0.050 g/t (1 SD)
- Method-specific validation: Optimized for Pb collection fire assay (AAS/ICP finish) using 30–50g aliquots.
- Supplied in 1 kg PET jars or 6 kg boxes, ensuring long-term stability and ease of use.
- 5-year validity when stored sealed in cool, dry conditions.
Key Certified Values
|
Analyte |
unit |
Certified Value (y) |
Standard Deviation (s) |
95% Confidence Interval (CI) |
||
|
1 SD |
1 SD Within Lab |
lower |
upper |
|||
|
Au |
g/t |
1.87 |
0.050 |
0.029 |
1.85 |
1.90 |
Intended Use
- QC monitoring: Calibration and validation of fire assay methods (minimum 30g sample mass).
- Bias detection: Identifying laboratory or procedural errors in Au analysis.
- Homogeneity assurance: Certified for low variability (RSD 1.4% in homogeneity studies).
Pulverised Gold
SKU: 10192
