Laboratory of CJSC “PKF” NK “
The laboratory of JSC “Production and Commercial Company” NK “is equipped with advanced
facilities of measuring instruments, as well as is represented by qualified personnel and relevant experience allowing to perform a set of necessary tests.
The laboratory is engaged in the development of new types of refractory products and the technology of its production.
The laboratory of the enterprise includes five basic divisions:
– Laboratory of physical and mechanical tests;
– Laboratory of physical and chemical tests;
– Laboratory for thermal testing;
– Cement testing laboratory;
– Laboratory of tests of concrete.
The activity of the production laboratory is carried out within the framework of the legislation of the Russian Federation, on the basis of the certificate of attestation of the Federal state budgetary institution “Belgorod Center of Standardization and Metrology” (certificate No. 061 of 03.08.2015).
Name of the tested products:
– concrete refractory mixtures;
– lightweight concretes;
– heat-resistant concretes;
– heavy concrete;
– Aluminosilicate products;
– unshaped refractories: ramming mixes, mortars, fireproof, fillers;
– ceramsite gravel;
– crushed stone;
– sand;
– alumina and high-alumina cements;
– soils;
– solutions.
Indicators controlled in the production laboratory.
| Indicator | Normative documentation for measuring procedures |
| Open porosity | ГОСТ 2409-95 |
| Compressive strength | ГОСТ 4071.1-94
ГОСТ 4071.2-94 ГОСТ 10180-2012 |
| Apparent density | ГОСТ 2409-95
ГОСТ 24468-80 ГОСТ 12730.1-78 ГОСТ Р 52541-2006 |
| Sampling | ГОСТ 8179-98
ГОСТ Р 52541-2006 |
| Taking tests | ГОСТ 26565-85 |
| Moisture content | ГОСТ 28584-90 |
| Granule composition | ГОСТ 27707-2007
ГОСТ 9758-2012 ГОСТ 8269.0-97 ГОСТ 8735-88 |
| Terms for setting cement paste | ГОСТ 310.3-76 |
| Residual changes in size during heating | ГОСТ 5402.1-2000
ГОСТ 5402.2-2000 |
| Water Absorption | ГОСТ 18847-84 |
| The workability of the concrete mix (mobility, rigidity) | ГОСТ 10181-2014 |
| The average density of concrete mix | ГОСТ 10181-2014 |
| Durability | ГОСТ 10180-2012 |
| The average density | ГОСТ 12730.1-78 |
| Frost-resistance | ГОСТ 10060-2012 |
| Water-resistant | ГОСТ 12730.5-84 |
| Bulkdensity | ГОСТ 9758-2012
ГОСТ 8735-88 |
| Content of pulverized and clay particles | ГОСТ 8735-88 |
| Chemical composition | ГОСТ Р 55410-2013 |
| Thermal resistance | ГОСТ 7875.0-94
ГОСТ 7875.1-94 ГОСТ 7875.2-94 |
| Thermal conductivity | ГОСТ 12170-85 |
| Coefficient of consolidation | ГОСТ 22733-2002 |
| Modulus of elasticity | ГОСТ 20276-2017 |
| Moisture of soils | ГОСТ 5180-2015 |
| Density of a mortar mixture | ГОСТ 5180-2015 |
| Compressive density of solution | ГОСТ 5180-2015 |
| The average density of the solution | ГОСТ 5180-2015 |
| Frost resistance of mortar | ГОСТ 5180-2015 |
Raw materials coming to the enterprise, pass the procedure of entrance control. The laboratory provides production needs, as well as works from external customers. If you have research or control tasks, we are ready to consider them and offer our solutions