The Central Geological Laboratory (CGL) is leading professional organization that performs complex production of CRM from mineral resources in Mongolia.

The analytical work performed at the CGL is closely interrelated to activities of geological investigation and exploration, mineral resources exploitation and geoecological work on the territory of Mongolia. Consequently, demand of CRM of mineral resources of Mongolia was arisen in order to assure the international comparability of obtained test results.   

CRM are used for quality control purposes, to evaluate the reliability of test results, to validate test methods and calibrations and to adjust analytical equipment.

Since 1970`s, the Central Geological Laboratory has produced 11-international, 45-national CRMs and 5 (21)-institutional RMs, total 50 CRMs for mineral resources are many kind of rocks, ores, concentrates, combusion raw materials that are 90% of the total number CRMs produced in Mongolia.

Cooperating organizations participating in certifications analyses are from countries: USA, United Kingdom, Albani, Bulgaria, Brasil, German, Isrial, Spain, Canada, Mexico, Russia, Slovak, China, France and Japan.

Mongolian-German Technical cooperation project "Certification of reference materials" is being implemented at the CGL since 2007, which is modernizing techniques and technologies used for production of CRM and developing international and domestic marketing of CRM.

In 2009, two CRM - Serpentinite MGL-GAS and Alkaline granite MGL-OShBO were recertified by cooperation with the International Association of Geoanalysts.

Please see information of our CRM from the COMAR`s database, which is a liaison partner with ISO Committee on Reference Materials (REMCO).

Application of CRM

CRM are used for quality control purposes, evaluation of the reliability of test results, method validation, calibration and to adjustment of analytical equipment.

Reasons of application of CRM:

-    CRM establish comparability of any measurements, service and production of country`s all sectors to international standards or market, thus satisfy essential needs of the economy.

-    CRM are basis of the comparability and build world wide confidence in the comparability of measurements

-    The comparability to international standards and markets is established by systematical application of CRMs.

-    The number, variety and quality of their CRMs almost represent the economical and industrial development of each country.

 Scope of application of CRM:

-    Development of new test methods and approaches

-    Quality control of analytical work

-    Proficiency tests of laboratories

-    Calibration of analytical equipment

-    External and internal control of geological research, inspection of mining production expertise control

-    Control on certification analyses of newly produced RM

Stages of production of CRM

Production process of CRM is execute in accordance with following stages complying international and national standards, protocols and guides regarding the production of CRM:

-          Project definition

-          Establishment of Certification plan of the production of RM

-          Sample collection

-          Substantial composition study

-          Sample preparation (crushing, pulverizing)

-          Structure of particle study

-          Homogenization of the bulk sample

-          Bottling

-          Homogeneity testing, statistical evaluation

-          Organization of inter-laboratory certification analyses and summarization of submitted data 

-          Assessment of the submitted data to derive certified values, establishment of traceability of reference values and estimation of their uncertainties

-          Preparation of certification report and other relevant documents (certificate of analysis, instruction of use etc.,) 

-          Expertise by certification body and certify as CRM (at level of national standard, international standard) 

-          Advertisement and marketing

Note: We apply "ProLAB Plus"- software package for method interlaboratory tests and proficiency tests for homogeneity and stability testing, statistical analysis and evaluation.