PBS-86 0.97ppm Au

PBS-86 is a basalt-hosted gold certified reference material (CRM) designed for precision quality control of fire assay gold analysis in mining and exploration laboratories. This CRM features a homogenized blend of pulverized Bunbury basalt and pyrite spiked with gold, ensuring reliable performance for Au detection.

Key Features 

• Certified gold content: 0.976 ppm (g/t) ± 0.021 ppm (1 SD) 
• Method-specific: Validated for Pb collection fire assay (AAS/ICP finish) across 13 ISO/IEC 17025-accredited laboratories. 
• Supplied in 1kg and 2kg PET jars, with unique batch labels for traceability. 
• Valid for 5 years when stored sealed in cool, dry conditions. 

Key Certified Values 

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. 
• Homogeneity assurance: Certified for low variability (RSD: 2.1%). 
• Minimum sample mass: 25g for fire assay to ensure representativeness.