Fine Gold (CRM 10812-2016 — 10814-2016)

 

CRM is designed for the certification of measurement methods and the calibration of measuring equipment used to determine refined gold composition by spectral methods of analysis, in order to control the accuracy of measurements.

CRM can be manufactured as the following:

  • discs of 37±1 mm diameter, 5±0,5 to 20±1 mm high;
  • shavings of a maximum size of 1 mm.

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

Lifetime is 50 years.

The assessment of the metrological properties was performed by interlaboratory certification with the following laboratories participated:

  • Krastsvetmet, Krasnoyarsk;
  • Irkutsk Research Institute of Noble and Rare Metals and Diamonds (IGIREDMET), Irkutsk;
  • Analytical, Certification and Eco-Analytical Centre ANSERTECO, Moscow;
  • Novosibirsk Refinery Plant, Novosibirsk;
  • Ural Scientific Research Institute of Metrology, Yekaterinburg;
  • Moscow Special Alloys Processing Plant, Moscow;
  • Uralelektromed, Verkhnyaya Pyshma;
  • DTsM-ANALITICA Analytical Centre, Nizhny Novgorod;
  • Tau-Ken-Altyn, Astana; and
  • Urals Innovative Technologies (URALINTECH), Yekaterinburg.

Metrological Properties

Certified Values (%), Basis — Gold

ElementCRM 10812-2016

CRM 10813-2016

CRM 10814-2016

CRM Au A1CRM Au A2CRM Au A3CRM Au A4CRM Au A5
Silver 0.00024 0.00067 0.00222 0.00451 0.00877 0.00013 0.00663
Platinum 0.00024 0.00050 0.00204 0.00429 0.00909 0.00024 0.00147
Palladium 0.00015 0.00057 0.00184 0.00467 0.00947 0.00028 0.0013
Copper 0.00018 0.00061 0.00186 0.00427 0.00946 0.00026 0.00182
Bismuth 0.00019 0.00056 0.00179 0.00415 0.00885 0.0002 0.00189
Antymony 0.00016 0.00050 0.00168 0.00440 0.00875 0.00024 0.00186
Lead 0.00022 0.00044 0.00155 0.00390 0.00936 0.0002 0.00181
Iron 0.00019 0.00048 0.00174 0.00434 0.00942 0.00022 0.00204
Zinc 0.00011 0.00051 0.00159 0.00422 0.00907 0.00024 0.00202
Magnesium 0.00013 0.00045 0.00168 0.00434 0.00992 0.00017 0.00141
Rhodium 0.00015 0.00047 0.00172 0.00428 0.00936 0.0002 0.00183
Tin 0.00009 0.00051 0.00155 0.00410 0.00939 0.00019 0.00188
Nickel 0.00012 0.00049 0.00174 0.00440 0.00919 0.00017 0.00198
Chrome 0.00010 0.00046 0.00151 0.00450 0.00870 0.00018 0.00173
Manganese 0.00015 0.00057 0.00180 0.00447 0.00898 0.00022 0.00169
Silicon 0.00017 0.00049 0.00110 0.00370 0.00811 0.00016 0.00130

 

The range of absolute uncertainty of certified values, Р=0.95, %

ElementCRM 10812-2016

CRM 10813-2016

CRM 10814-2016

CRM Au A1CRM Au A2CRM Au A3CRM Au A4

CRM Au A5

Silver 0.00002 0.00003 0.00011 0.00017 0.00040 0.00002 0.00031
Platinum 0.00006 0.00006 0.00014 0.00019 0.00034 0.00008 0.00011
Palladium 0.00002 0.00003 0.00012 0.00019 0.00068 0.00002 0.0001
Copper 0.00003 0.00005 0.00009 0.00023 0.00043 0.00004 0.00009
Bismuth 0.00006 0.00008 0.00019 0.00025 0.00078 0.00006 0.00021
Antymony 0.00004 0.00005 0.00008 0.00026 0.00067 0.00005 0.00011
Lead 0.00004 0.00005 0.00003 0.00019 0.00061 0.00003 0.00009
Iron 0.00003 0.00006 0.00013 0.00022 0.00042 0.00004 0.00019
Zinc 0.00003 0.00005 0.00009 0.00029 0.00041 0.00006 0.00012
Magnesium 0.00003 0.00005 0.00005 0.00021 0.00031 0.00004 0.00014
Rhodium 0.00002 0.00007 0.00005 0.00022 0.00042 0.00003 0.00011
Tin 0.00003 0.00006 0.00007 0.00036 0.00066 0.00004 0.00009
Nickel 0.00004 0.00005 0.00007 0.00019 0.00047 0.00006 0.00011
Хром 0.00002 0.00004 0.00006 0.00005 0.00037 0.00003 0.00007
Manganese 0.00002 0.00002 0.00005 0.00020 0.00042 0.00002 0.00007
Silicon 0.00005 0.00006 0.00008 0.00035 0.00051 0.00005 0.00018