IMS-231
Pulverised Basalt Oxide Au 3.43g/t, 1kg jar
IMS-231 is a certified reference material designed to support precision and accuracy in fire assay gold analysis. Manufactured using a blend of pulverised basalt and weathered sediments and spiked with gold, IMS-231 is produced and certified in compliance with ISO Guide 35:2017 and ISO 17034:2016, ensuring robust and reliable performance in quality control programs.
Key Features
- Certified gold content: 3.43 g/t ± 0.095 g/t (1 SD)
- Method-specific: Validated for Pb collection fire assay (AAS or ICP finish) through 15 ISO/IEC 17025-accredited laboratories
- Supplied in 1kg press-sealed plastic jars, with 50-100g sachets available upon request for blind laboratory submissions.
- Storage stability: Valid for 5 years under sealed, dry, cool 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 |
3.43 |
0.095 |
0.062 |
3.38 |
3.47 |
Intended Use
- Quality control: Ideal for validating and monitoring fire assay workflows (30–50g aliquots recommended)
- Bias detection: Supports detection of inter-lab analytical or procedural inconsistencies
- Minimum sample mass: 30 g to maintain certified value accuracy and homogeneity
Pulverised Gold
SKU: 10231
