323 Mineralfaser (ISVER DOMO TWIN 10/5) 0.05 1 M_iMW50 insulation materials (i) Saint-Gobain Isover G+H AG 14 0.7 ift Rosenheim Prüfbericht 17036058.AF18 ift Rosenheim 2010 keine Angaben Messung Isotrop 248 BBS iw02 B_bGP12_bCLT90_aC10_iMW50_bCLT98 4 249 BBS tw02 B_bGP12_bGP12_bCLT90_aC10_iMW50_bCLT90_bGP12_bGP12 5