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OREAS: registration in the Industry register of CRMs continues!

OREAS: registration in the Industry register of CRMs continues!

We are pleased to inform you that EnProTech Ltd being the exclusive distributor of certified reference materials (CRMs) OREAS of ores and rocks (manufacturer – ORE Research & Exploration Pty Ltd, Australia) in Russia and the CIS countries, has completed registration of the second and third batches of OREAS in the Industry register of CRMs, that are recommended for use in laboratory-analytical support of geological prospecting and exploration works on solid mineral resources.

Thus, there are 15 OREAS CRMs in the Industry register of CRMs and work on further registration continues successfully!



Table 1. The second batch of OREAS entered in the Industry register of CRMs
Catalog Name Number in Industry register Basic Certified Values Description
1. OREAS 22f 916-19 Au: < 1 ppb* CRM of quartz sand with extremely low background gold (blank)
2. OREAS 217 917-19 Au: 0.338 ppm* CRMs of gold-quartz ores
3. OREAS 221 918-19 Au: 1.06 ppm*
4. OREAS 620 919-19 Au: 0.685 ppm*
Ag: 38.5 ppm**
Cu: 0.173 %**
Pb: 0.774 %**
Zn: 3.15 %**
CRMs of gold-sulphide (massive sulphide-polymetallic) ores
5. OREAS 623 920-19 Au: 0.827 ppm*
Ag: 20.4 ppm**
Cu: 1.73 %**
Pb: 0.250 %**
Zn: 1,03%**
  Table 2. The third batch of OREAS entered in the Industry register of CRMs

Catalog Name

Number in Industry register

Basic Certified Values

Description

1. OREAS 600b 921-19 Au: 0.204 ppm*
Ag: 25.1 ppm**
Cu: 499 ppm**
CRMs of rich sulfide Ag-Cu-Au epithermal ores
2. OREAS 601b 922-19 Au: 0.775 ppm*
Ag: 50.1 ppm**
Cu: 0.101 %**
3. OREAS 602b 923-19 Au: 2.29 ppm*
Ag: 118 ppm*
Cu: 0.496 %**
4. OREAS 603b 924-19 Au: 5.21 ppm*
Ag: 301 ppm*
Cu: 0.973 %**
5. OREAS 604b 925-19 Au: 1.69 ppm*
Ag: 507 ppm*
Cu: 2.12 %**

* the values were obtained by fire assay for gold and silver. Other chemical elements and methods for determining their content in CRM you can see in analytical passports.

** the values were obtained by 4-acid digestion for silver and copper. Other chemical elements and methods for determining their content in CRM you can see in analytical passports.

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