German Research Association

For the spectrophotometric method, the evolved carbon disulfide is reacted with copper acetate and diethylamine to form a yellow copper complex which can be measured at 435 nm." The recoveries range between 70 and 90%. Reproducibility of this method was improved by reducing the time and the mode of sample pretreatment. Since all alkylenebis(dithiocarbamates) decompose to carbon disulfide by acid degradation, the above analytical methods are not selective. The result is the measured total residues of all alkylenebis(dithiocarbamates) related products. However, this method is recommended as standard method S15 for alkylenebis(dithiocarbamates) by the German Research Association. ... 

German Research Association (Deutsche Forschungsgemeinschaft). 1999. List of... 

MAK (Maximale Argeitsplatzkonzentration [maximum workplace concentration]) (Deutsche Forschungsgemeinschaft [German Research Association] 2000) is analogous to the ACGIH-TLV-TWA. 

HFC-134a is a relatively new chemical, and only the American Industrial Hygiene Association (AIHA 1991) has developed a workplace guideline. The AIHA Workplace Environmental Exposure Level (WEEL) of 1,000 ppm is an 8-h time-weighted average. The German MAK and Dutch MAC are also 1,000 ppm (German Research Association 1999 Ministry of Social Affairs and Employment 2000). 

German Research Association (Deutsche Forschungsgemeinschaft). 1999. List of MAK and BAT Values, 1999. Commission for the Investigation of Health Hazards of Chemical Compounds in the Work Area, Report No. 35. Federal Repubhc of Germany Wiley-VCH. 

Experiments were conducted at the University of Magdeburg to examine the partial oxidation of ethane to ethylene by dosing oxygen into the fluidized bed of porous catalysts using immersed sintered metal and ceramic membranes. These studies were related to a DFG (German Research Association) research group (DFG-Nr. FOR 447/1-1) Membrane supported reaction engineering in the subproject Fluidized-bed membrane reactor . 

Today Dieter Mayer is a Consultant for the global pharmaceutical industry and is a member of the Advisary Board of National German Research Associations. 

MAK Spitzenbegrenzung (Peak Limit) (German Research Association, 2007) constitutes the maximum average concentration to which workers can be exposed for a period up to 30 min with no more than two exposure periods per work shift total exposure may not exceed the 8-h MAK. 

MAK (Germany) [maximale arbeitsplatzkonzentration] maximum workplace concentration, 8-h time weighted average, German Research Association... 

This research was funded over 6 years by a grant from the German Research Association. Thank you for giving us the opportunity to do this interdisciplinary research. References... 

The Senate commission of the Deutsche Forschungsgemeinschaft (DFG -German Research Association) on investigations into harmful working substances publishes among other documents an annual listing of carcinogenic industrial chemical materials. The DFG commission also sets out the Technische Richtkon-zentration (TRK). The TRK value is the concentration of the substance as gas, vapor or aerosol in the atmosphere which serves as reference level for the relevant protective measures and the control of concentration in the workplace. 

Staudinger s research into cellulose and other fibres started to receive funding from the Emergency Association/German Research Association in 1936. He received regular support of between RM 3,000 and RM 12,000 per year until 1943 [19, p. 401]. The funds provided by the German Research Association and the Reich Research Council are said [19, p. 232] to total RM 66,160 in the period 1934 1945. 

The research described in this paper has been sponsored by the German Research Association (Deutsche Forschungsgemeinschaft, DFG). We would like to acknowledge the DFG for their support. 

MAK (Maximale Argeitsplatzkonzentration (Maximum Workplace Concentration)) Deutsche Forschungsgemeinschafl. (German Research Association) 2012 is dffined analogous... 

The authors gratefully acknowledge the support of BASF and LANXESS companies who provided the institute with the required raw materials for the related investigations. In addition, the authors sincerely appreciate the financial support by the German Research Association (DFG) undCT the grant SFB-396 TP B3. 

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