Document 37B6QzDxxb0DZ3EJQ75gjVDq6

. Industrial Hygiene Digest - 18 i August lC/Li. 875 Research on the Development of Silicosis Following Cessation of Erpoaum ~ pu-i _ w-rr. C-rglnacker-Orlstofarl and F. long. fetschr. f.~ lini1'aTimea. W, ol (1947) German. / The authors prepared tables vhlch give the status of silicotic person who vere removed from exposure for at least four years. Tran these figures the authors conclude that the workers who are removed from exposure as bo~,:. ac the first roentgenologic changes are noted have a greater chance of r.0 falling ill nr nf manifesting Illness later, than those who go on-working. They stress the importance of adopting technical measures to control dust. - -- Condensed from J. Ind. Hyg. & 876 Investigations on Combat of Occupational Anthrax: further Experiments or. Disinfection Procedures In Industries Utilizing Animal Hairs and Bristles: Bactericidal Action of Watery and Soapy Formaldehyde Solutions at Higher Temperatures E. Haller and K. Heicken. Ztechr. f. Hyg. u. Infektlonskr. 120. 109 (July. 1948) German. I the bactericidal effect of formaldehyde solutions an anthrax strains ( la greatly enhanced by Increased temperature. With the same concentration, 1 a formaldehyde solution Is 100 times as effective at 80'C. aa at 20*C. lhe addition of soap Increases the sporocldal effect, particularly In the ji lover concentrations. The most effective concentrations for various temp eratures were determined. On the basis of these observations a procedure was developed for the disinfection of animal hairs and bristles(vhlch are j t Impaired by exposure to boiling or to steam under pressure), vhlch was used with success In establishments that spin horse hair or manufacture brushes. -- Condensed from J. Ind. Hyg. A Tor. h 877 Investigations on Combat of Occupational Anthrax: Bactericidal Action of CaporltT Chloramine, Chlorlnlde, and Formaldehyde Against Anthrax Spores at Twenty. Twelve and Four "C. E. Haller and K. Heicken. Ztechr. f. Hyg. u. Infektlonskr. 1287 87 (July 16, 1948) German. i These stulles vere conducted to determine the most suitable methods \ for the disinfection of railroad cars and other transportation facilities In which Imported skins and other possible sources of anthrax had been carried, also of storage facilities, tanneries, vool-cardlng establish ments, horse-hair-spinning, and for the protective clothing of workers. Of the three chloride preparations, caporlt was found to be the most efficient, particularly at the lower temperatures of 12 and 4*C. The sporocldal action of formaldehyde solutions Increased in proportion to the concentration up to a concentration of 4. The disinfecting potency of these solutions was considerably less at 12*C. and even less at 4*C that It was at 20*C. The soapy solutions of formaldehyde vere maro effective at lover temperatures than the watery solutions and the ones that had been prepared 24 hours before, either vlth or without soap were more effective than fresh solutions. It was concluded that the solu tions of caporlt and formaldehyde are of practical value for the disin fection of areas vhlch might be contaminated with anthrax organisms. -- J. Ind. Hyg. A Tox. (Editor's Rote: We have no clue to the composition of "Caporlt".) I