OREAS 64
SKU: 64
OREAS 64 is a gold–silver certified reference material produced from Cerro
Moro low Ag–Au ore, blended with Cerro Moro high-Au ore and a silver
concentrate.
The material replicates low-sulphidation epithermal vein mineralisation
hosted in volcanic rocks, making it well-suited for calibration and QA/QC of
Au–Ag assays (fire assay/ICP) and multi-element geochemical suites used in
exploration and mill QA/QC.
OREAS 64 has been characterized using the following methods:
Gold via 25-50g fire assay with gravimetric finish
Silver via 25-50g fire assay with Gravimetric finish
Silver via 4-Acid digestion with AAS finish
Certified values for applicable analytes are operationally defined for each
method, with results under OREAS ISO 17034 scope of
accreditation.
Specifications
- State: primary
- Matrix: andesitic volcanics
- Mineralisation: low sulphidation epithermal
- CRM Group: Au >1 ppm, Au-Ag ore
Certified Values
| Analyte | Certified Value | 1SD | 95% CL Low | 95% CL High | Method |
|---|---|---|---|---|---|
| Ag, Silver (ppm) | 685 | TBD | TBD | TBD | 4-Acid Digestion |
| Au, Gold (ppm) | 16.85 | TBD | TBD | TBD | Pb Fire Assay |
Ürün Özellikleri
Sertifikalı Referans Değerler
| Analit | Sertifikalı Değer | Belirsizlik (1SD) | %95 Güven Aralığı Alt | %95 Güven Aralığı Üst | Yöntem |
|---|
SD = Standart Sapma | CL = %95 Güven Limitleri
Yöntemler: AR = Kral Suyu, 4-Acid = 4-Asit Çözünürlük, LBF = Lityum Borat Füzyon, FA/AAS = Ateş Tahlili / AAS, LECO = LECO Yanma Analizi
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