sponsored by AIEE Committee on Electric Heating. sponsored by ASTM Committee D-20 on Plastics. sponsored by ASTM Committee C-1 on Cement. sponsored by IFAC Technical Committee on Applications. sponsored by ASTM Committee E-2 on Emission Spectroscopy. sponsored by ASTM Committee E-14 on Mass Spectrometry. sponsored by ASTM Committee E-9 on Fatigue. sponsored by ASTM Committee E-19 on Chromatography. sponsored by ASTM Committee D-19 on Industrial Water. sponsored by IFAC Technical Committee on Theory.