Alloyed Gold

CRM 8754-2006 — 8763-2006

CRMs 8754-2006 — 8763-2006 are designed for metrological assurance of analytical control in the field of extraction and processing of gold-bearing raw materials and applications in the analytical laboratories of metallurgical gold mining companies, performing analysis and certification tests. 

CRM can be manufactured as the following:

  • wire of 1 mm diameter; 
  • plates of  0.3 to 0.4 mm thickness, 20, 30, 40 mm wide;
  • round plates of  0.3 to 0.4 mm thickness, 20, 30 mm diameter;
  • shavings of a maximum size of 1 mm.

CRM in the form of shavings is supplied in plastic jars with screw caps. Minimum supplied weight is 20 g.

Lifetime is 50 years.

№ of CRMCertified value of RM Au, %Uncertainty of RM certified value Au, Р = 0.95Certified value of RM Ag, %Uncertainty of RM certified value Ag, Р = 0.95
CRM 8754-2006 0.11 ± 0.01 0.49 ± 0.02
CRM 8755-2006 0.49 ± 0.01 1.93 ± 0.04
CRM 8756-2006 1.97 ± 0,03 4.90 ± 0.09
CRM 8757-2006 4.95 ± 0.04 9.86 ± 0.09
CRM 8758-2006 10.05 ± 0.04 79.87 ± 0.11
CRM 8759-2006 29.94 ± 0.07 29.90 ± 0.11
CRM 8760-2006 50.02 ± 0.06 49.80 ± 0.08
CRM 8761-2006 79.88 ± 0.06 20.00 ± 0.09
CRM 8762-2006 89.91 ± 0.08 5.07 ± 0.08
CRM 8763-2006 98.97 ± 0.05 0.10 ± 0.01

 

CRM 10553-2015

CRM 10553-2015 is designed for the certification of measurement methods and the calibration of measuring equipment used to determine the content of mass fraction of gold and silver by assay and x-ray method.

CRM can be used by the analytical laboratories that perform the analysis and certification testing of precious metals.

CRM manufactured as shavings of a maximum size of 1 mm.

CRM in the form of shavings is supplied in plastic jars with screw caps. Minimum supplied weight is 20 g, shelf life is 50 years.

№ of CRMCertified value of RM Au, %Uncertainty of RM certified value Au, Р = 0,95Certified value of RM Ag, %Uncertainty of RM certified value Ag, Р = 0.95
CRM 10553-2015 86.86 ± 0.02 13.02 ± 0.05