In the course of examining suspected carcinogenic working substances in category 3 regarding a classification in the new categories 4 and 5, glutardialdehyde and hydrogen peroxide were reclassified in category 4 with a MAK value of 0.05 and 0.5 ml/m, resp. Perfluorooctane acid and its inorganic salts were classified in this category with a MAK value of 0.005 mg/m. This year, once again, no working substances were found for category 5, i. e. carcinogenic with no noteworthy increased risk at the existing MAK value.
Vanadium and its inorganic compounds are classified in gamete mutagenicity category 2 due to their mutagenic effect on gametes. Suspicion of a mutagenic effect of antimony, benomyl, and carbendazim (category 3A) and of ethidium bromide and propyleneimine (category 3B) on gametes has been substantiated.
The MAK value of perfluorooctane acid and its inorganic salts was set at 0,005 mg/m. For 16 substances (acrylic acid, 2-butene-1,4-diol, N,N-dimethylformamide, 2-ethylhexanol, fluoride, hydrogen fluoride, d-limonene, methacryl acid, methylic acetate, N-methyl-2-pyrrolidone (steam), phosphorus pentoxide, phosphoric acid, m-phthalic acid, p-phthalic acid, tetrahydrothiophene, and hydrogen peroxide), MAK values changed or new ones were proposed; the values of five substances (glutardialdehyde, methyl methacrylate, phosphorus oxychloride, phosphorus pentachloride, and phosphorus trichloride) were confirmed after thorough reviews of recent literature. For 13 substances, no MAK values could be determined (benzyl alcohol, 3,4-Dichloroaniline, 4-Diiodomethylsulfonyltoluene, disulfur decafluoride (sulfur pentafluoride), gold, fluorine, hydroxyacetic acid butyl ester, 3-hydroxy-2-naphthalene carboxylic aci
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Contact: Dr. Jutta Rateike
Jutta.Rateike@dfg.de
49-228-885-2665
Deutsche Forschungsgemeinschaft
22-Jul-2005