Ключевые слова:
Density measurement|Visual inspection (testing)|Determination of content|Cavity walls|Thermal insulating materials|Test specimens|Formaldehyde|Shrinkage tests|Type testing|Dimensional measurement|Viscosity measurement|Water-absorption tests|Specimen preparation|pH measurement|Gelation|Quality control|Chemical analysis and testing|Foams|Urea-formaldehyde resins|Life (durability)|Physical testing|Dilution|Stability|Time|Precipitation methods