On the basic of our findings mineral oils, which are normally used in the textile industry, should not be valued as risky substances due to the criteria of the 'Wasserhaushaltsgesetz' WHG paragraph 7a. Because of the lack of data the risk classification of heavy gasoline ('Testbenzine') on the basic of these criteria was not practicable. This is also true for the highly lipophilic textile chemicals. Most of the investigated textile auxiliaries are hydrophilic or hydrophobic/hydrophilic; only a few can be classified as high lipophilic substances, like DDT and its derivates on cotton, benzophenone and benzotriazole, and antimicrobic additives for the preservation. The enrichment of these substances in wastewater containing hydrocarbons is possible, but not enough verified. Their discharge should be avoided. Random testings were peformed for a technical white oil and for a wastewater from 'pretreatment' and 'printing' respectively. In the 'printing' wastewater a high concentration of naphthaline was established; its toxicity and ecotoxicity is discussedAlso published as: Umweltbundesamt. Texte, no. 3/93SIGLEAvailable from TIB Hannover: RN 8908(93-009) / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekBundesministerium fuer Umwelt, Naturschutz und Reaktorsicherheit, Bonn (Germany)DEGerman
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