常见化学毒物危害程度分级汇总表（供参考）
CAS NO.108-31-Maleic anhydridTHI=3马来酸中度危害（Ⅲ级110-91-MorpholinTHI=4中度危害（Ⅲ级吗
Coal tar pitc（THI=765996-93-volatiles,as Benzen极度危害（Ⅰ级苯溶物计soluble matterManganese and
7439-96-5(M级中度危害IIITHI=4inorgani MnO compounds ,as MnoMolybdenum ancompounds,as Mo7439-98-7(M级中度危害IIITHI=4Molybdenum an计Moinsoluble compoundsoluble compound7439-98-7(M级轻度危害
IVTHI=2THI=58065-48-Demeto高度危害（Ⅱ级内吸NaphthalenTHI=591-20-高度危害（Ⅱ级2-HaphthalenTHI=22814-77-级轻度危害IV2萘THI=491-17-Decali中度危害（Ⅲ级萘THI=57-13-Ure级轻度危害IV尿Nickel and inorgani高度危害（Ⅱ级7440-02-0(NiTHI=5compounds ,as Nickemetal and insoluble
