Thyssen

Phone +49 208 3002-0 Fax +49 208 3002-327 E-mail info thyssen-schachtbau.com Web site www.thyssen-schachtbau.de... 

THREE-ONE , 1,1,1-trichloroethane, 128 Thyssen Schachtbau GmbH, 166 Tianjin Haiyuan Chemical Plant, 153 Ticona, 162... 

Thyssen A, Borgerding A, Schultze JW(1987) Makromol. Chem. Macromol. Symp. 8 143... 

Thyssen JP. Menne T. Elberberg J. Plaschke P, 16 Johansen D Hypersensitivity to local anesthetics -update and proposal of evaluation algorithm. Contact Dermatitis 2008 59 69-78. 17... 

Pages 32/33 Thyssen Krupp AG NASA Photodisc BASF AG Hemera... 

Kimmerle, G., A. Een, P. Groning, and J. Thyssen. "Acute Toxicity of Bicyclic Phosphorus Esters." Archivfuer Toxikologie 35 (1976) 149-52. 

Thyssen-Galoczy A slagging coal gasification process. 

With an emphasis on scale electrical conductivity (surface stability as well), a number of new alloys have been recently developed specifically for SOFC interconnect applications. The one that has received wide attention is Crofer 22 APU, an FSS developed by Quadakkers et al. [136, 137] at Julich and commercialized by Thyssen Krupp of Germany. Crofer 22 APU, which contains about 0.5% Mn, forms a unique scale, as shown in Figure 4.6, comprised of a (Mn,Cr)304 spinel top layer and a chromia sublayer [137-139], The electrical conductivity of (Mn,Cr)304 has been reported... 

Respiratory Effects. In two separate experiments in which male and female rats were exposed intermittently for 3 weeks to 0.1,0.5, or 3.7 mg/m in the first experiment, and to 0.02 mg/m (males and females) or 3.1 mg/m (females only) in the second experiment, inflammatory changes were found throughout the respiratory tract at 0.5, 3.1, and 3.7 mg/m3 (Thyssen 1980). These inflammatory changes were considered to be related to reactive bone marrow changes (see Section... 

Cardiovascular Effects. No treatment-related microscopic lesions were found in the hearts of rats exposed intermittently to 3.7 mg/m for 3 weeks (Thyssen 1980) or to 1.4 mg/m for 13 weeks (Shiotsuka 1989). 

The MRL is based on a NOAEL of 0.5 mg/m3 for decreased acetylcholinesterase activity in rats exposed to disulfoton 4 hours/day for 5 days in a study by Thyssen (1978). The NOAEL was adjusted for intermittent exposure, converted to a human equivalent concentration, and divided by an uncertainty factor of 30 (3 for extrapolation from animals to humans and 10 for human variability). Inhibition of erythrocyte cholinesterase activity and unspecified behavioral disorders were observed at 1.8 mg/m, and unspecified signs of cholinergic toxicity were observed at 9.8 mg/m. Similar effects were observed in rats or mice exposed to higher concentrations for shorter duMtions (Doull 1957 Thyssen 1978). The NOAEL value of 0.5 mg/m is supported by another study, in which no significant decrease in the activity of brain, serum, or submaxillary gland cholinesterase was found in rats exposed to 0.14-0.7 mg/m for 1 hour/day for 5-10 days (DuBois and Kinoshita 1971). Mild depression of erythrocyte cholinesterase activity was reported in workers exposed by the inhalation and dermal routes (Wolfe et al. 1978). 

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