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Our own laboratory

As part of our business we have our own laboratory, which allows us to keep control of the supply of raw materials and our products immediately after production.
The basic parameters being controlled;

  • weight
  • length
  • diameter
  • time of sinking
  • water absorption
  • humidity
  • ash
  • the content of water-soluble substances
  • the presence of foam-forming compounds - inadmissible
  • content of chlorides
  • the content of sulphates
  • the content of reducing substances - inadmissible
  • pH of water extract
  • content of optically bleaching substances- inadmissible
  • qualitative and quantitative microbiological purity

The complete tests are performed at least once a quarter and at every change of any material.