Spektr LLC received Certificate of Conformity No. ROSS RU.SG64 H01450 dated January 17, 2026, having successfully completed the certification procedure for its own products –double-glazed windows – for compliance with the requirements of GOST 24866-2014.
Tests were conducted for the following parameters:
• deviations from: nominal thickness and dimensions, flatness of glass sheets, straightness of double-glazed windows edges;
• difference in diagonal lengths;
• appearance;
• markings;
• sealing of double-glazed windows;
• optical distortions;
• desiccant efficiency;
• moisture permeability;
• durability.
You can find more information and download the certificate of conformity No. ROSS RU.SG64.N01450 dated January 17, 2026, and all its appendices on our website in the "Cooperation" section.