IMS-330

IMS-330 is a mid-grade gold certified reference material (CRM) designed for rigorous quality control in fire assay analysis for mining and exploration laboratories. Certified in accordance with ISO Guide 35:2017 and ISO 17034:2016, this CRM is a homogenized blend of pulverized basalt and pyrite spiked with gold, ensuring reliable performance for Au detection.

Key Features

• Certified Gold Content: 7.75 g/t ± 0.217 g/t (1 SD)
• Method-Specific: Validated for Pb collection fire assay (AAS/ICP finish) across 13 ISO/IEC 17025-accredited laboratories.
• Supplied in 1kg press-sealed plastic jars, with 50-100g sachets available upon request for blind laboratory submissions.
• Validity: 10 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: Identify laboratory or procedural errors in mid-grade Au analysis.
• Minimum Sample Mass: 25g for fire assay to ensure representativeness.