IMS-255
Pulverised Basalt Sulphide Au 0.89g/t, 1kg jar
IMS-255 is a basalt-hosted gold certified reference material (CRM), designed for precise quality control of fire assay gold analysis in mining and exploration laboratories. Certified in accordance with ISO Guide 35:2017 and ISO 17034:2016, this CRM features a homogenized blend of pulverized basalt and minor pyrite spiked with gold, ensuring reliable performance for Au detection in low-to-mid-range concentration samples.
Key Features
- Certified gold content: 0.89 g/t ± 0.023 g/t (1 SD)
- Method-specific: Validated for Pb collection fire assay (AAS/ICP finish) across 15 ISO/IEC 17025-accredited labs.
- Supplied in 1kg press-sealed plastic jars, with 50-100g sachets available upon request for blind laboratory submissions
- Valid for 5 years 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 |
0.89 |
0.023 |
0.015 |
0.88 |
0.90 |
Intended Use
- QC monitoring: Calibration and validation of fire assay methods (25–50g aliquots).
- Bias detection: Identification of laboratory or procedural errors in Au analysis.
- Minimum sample mass: 25g for fire assay to ensure representativeness.
Pulverised Gold
SKU: 10255
