PREP-STD-15
Sample Preparation & Core Cutting
Standard Sample Preparation Package (Drying, Crushing, Pulverizing)
Comprehensive sample preparation pipeline guaranteeing zero cross-contamination through strict quartz wash cycles, systematic sieve sizing QC, and automated riffling.
Detection Limits
QC: 70% passing 2mm, 85% passing 75µm (200 mesh)
Turnaround (TAT)
Standard: 24-48 Hours (integrated into assay turnaround)
Sample Requirement
Up to 5kg raw drill core, rock chip, or trench sample
Quality Framework
ISO/IEC 17025 Compliant
Analytical Overview & Methodology
Analytical accuracy begins in the sample preparation facility. RVA Laboratories operates an industrial-scale preparation circuit featuring dedicated dust extraction, automated crushers, and LM2 ring mills to guarantee representative homogenization.
Technical Method Specifications (PREP-STD-15)
| Method Code | PREP-STD-15 |
|---|---|
| Element Coverage | Complete Physical Sample Preparation & Homogenization |
| Detection Range | QC: 70% passing 2mm, 85% passing 75µm (200 mesh) |
| Sample Requirement | Up to 5kg raw drill core, rock chip, or trench sample |
| Instrumentation | Industrial Drying Ovens (60°C/105°C) + Heavy-Duty Jaw Crushers + LM2 Ring Mills |
| Standard Turnaround | Standard: 24-48 Hours (integrated into assay turnaround) |
Laboratory Protocols & Execution Specs
- Drying: Temperature-controlled drying at 60°C or 105°C to preserve volatiles
- Crushing: Heavy-duty jaw crushers reducing sample to >70% passing 2mm
- Splitting: Precision rotary/riffle splitting to obtain 250g - 1,000g pulp charge
- Pulverizing: LM2 bowl-and-ring pulverizers achieving >85% passing 75 microns
- Contamination Control: Barren quartz sand cleaning between every single batch
JORC & NI 43-101 Data Integrity Guarantee
Every batch tested under method PREP-STD-15 includes matrix-matched Certified Reference Materials (CRMs), analytical blanks, and duplicate splits at a minimum 20% insertion rate. Official digital Certificates of Analysis are digitally signed and traceable.