JIS K2435:1985 pdfダウンロード。Benzenes(Benzene·Toluene·Xylene Solventnaphtha) 1.Scope This Japanese Industrial Standard specifies the benzene，toluene，and xylene to be used for the material of chemical industry and the solventnaphthato be used for solvent. 2.Classification Classification shall be as follows: .(1)Benzene Pure Benzene special No., No.1 (2)Toluene Pure TolueneNo. 1,No.2 (3)xylene (a)xylene of Three Degrees (b)Xylene of Four Degrees (4)solventnaphtha 3.uality The quality of benzens when tested in accordance with the test methodsdescribed in 5.shall conform to the requirements specified in Attached Table. 4.Sampling Method The sampling method shall be in accordance with JIS K 2420. 5.. Testing Method The testing method shall be in...