JIS D4504:1985 pdfダウンロード。Windscreen Demisting systems for Trucks and Buses 1.scope This Japanese Industrial Standard specifies the demisting performances and their testing methods of the windscreen defroster,hereinafter referred to as the “defrosters”, for the trucks or busesspecified in JIs D 0101. Furthermore，this standard is also applicable to those of which-construction are in accordance with the trucks and buses,as appropriate. Remark:In this standard，numerical values and units given in { } are in accordance with the International System of Units(s1). 2. Definitions For the purposes of this standard，the fol1lowing definitions apply:(1)demistThat .operation -which removes the condensed film of the moisture covering the interior...