Among the corporate values of PrJSC "Ternopil Quarry", one of the defining ones is ensuring high product quality.
All production and service processes are aimed at achieving quality indicators, which are ensured through the implementation of process management, which involves monitoring compliance with requirements in all areas of the company's operation. In 2014, the company received the DSTU ISO 9001:2009 quality management system certificate.
CHEMICAL ANALYSIS OF LIMESTONE:
- the total content of calcium and magnesium oxides СаО+МgО, not less than 53.3%.
- the content of one-and-a-half aluminum and iron oxides in the sum of Al2O3+FE2O3, no more than 0.7%;
- the content of calcium oxides CaO, not less than 53.0%; and magnesium MgO, no more than 5%;
- the content of substances insoluble in hydrochloric acid in, no more than 20%;
- the content of insoluble silicon dioxin residue SiO2, no more than 1.5%;
- the test for the content of calcium carbonate CaСО3, not less than 99.0%;
- the content of magnesium carbonate MgСО3, no more than 2.50%;
THE LABORATORY TESTS THE FOLLOWING VALUES:
- determination of fractional composition (sieve analysis method)
- the content of dust and clay particles (including clay in lumps)
- grain composition
- indulgence
- humidity
In 2015, PrJSC "Ternopil Quarry" developed its own technical conditions: «Technological limestone technical conditions» TU U 08.1-00292623-001:2015.
CHEMICAL ANALYSIS OF LIME
- active CaO+MgO,%;
- outstanding grains
- moisture content of calcium lime, duration of quenching
- lime quenching temperature,
- CO2 content, %;
THE LABORATORY TESTS THE FOLLOWING VALUES:
- While drilling wells.
- Conducting a chemical analysis of the mining mass after the explosion.
- While producing a new type of product
- Periodic chemical, sieve analysis and physical analysis of finished products while shipping to the client.
Final control of product quality indicators is provided by the manufacturing laboratory, which meets certification criteria and has the right to conduct measurements in the sphere of state metrological supervision.
Product standards and quality indicators.
GENERAL STATE AND INDUSTRY STANDARDS FOR PRODUCTS (DSTU, SOU)
- ДСТУ 1451-96
- ДСТУ Б В.2.7-109
- ДСТУ Б.В.2.7-121-2003 Порошок мінеральний
- СОУ-МПП 73.080-028 2004
- СОУ-2007
- СОУ-метод ситового аналізу
QUALITY INDICATORS OF THE COMPANY'S PRODUCTS (TU, QUALITY PASSPORTS, QUALITY CERTIFICATES)
- ТУ-ТК Вапняк технологічний
