double glazed windows

...{"Moisture H2O ⩽1.0 ppmv":"Vlažnost H2O ⩽1.0 ppmv","Carbon monoxide + Carbon dioxide CO+CO2 ⩽0.1 ppmv":"Oglen monoksid + Ogljikov dioksid CO+CO2 ⩽0.1 ppmv","Oxygen O2 ⩽0.5 ppmv":"Kisik O2 ⩽0.5 ppmv","Radioelectronic industry.":"Radioelektronska industrija.","Hydrocarbons ΣCnHm ⩽0.1 ppmv":"Hidrokarboni ΣCnHm ⩽0.1 ppmv","Xenon Xe ⩽0.1 ppmv":"Ksenon Xe ⩽0.1 ppmv","Production of double-glazed windows...