Document 0J11yzxkBzLexdX0MDd5aVV3d

* Industrial Hygiene Digest - 31 January, 1950 the dye vas Ingested. Para Red Is practically Insoluble In vitro, It Is -- apparently free of. an excess of paxanitranilihe, of other intermediary substances cor of Impurities. Ve are continuing, the study of the mechanism of this type of poisoning." 97 The Action of Vapors from the Production and Treatment of Ozocerite upon the Nervous System. 1.0. dilula. Glglena 1. Sanit. 11, p. 31 (194b) Russian. % In the majority of cases disturbances of the vegetative nervous system takes place, with positive eye-heart reflex, respiratory arrhythmia and frequent cases of blood pressure disturbance (high, low, asymmetric). The effects are traced to the action of hydrocarbons, both acute.and chronic cases being observed. -- Chem. Abets. 98 Chemical Study of Harmful Vapors and OaaeB in the Ozocerite Mines in Bor1slavak. Region. V.P. Vendt and T.A. Lebedeva. Glgiena 1. Sanit. .. 13, P 31 (1948) Russian. The principal vapors are hydrocarbons, largely lower saturated, vith less than tvo per cent aromatic. The most harmful are the lover olefins and the higher paraffins (heptane and above). -- Chem. Abets 99 Paints, Lacquers, and Finishes. WJ. Harris Month. Rev. N.Y. State Dept, of Labor 27, 41-44 (Nov. 1948). A practical presentation from the standpoint of fire, inhalation, and contact hazards. Examples are given from the experience of Nev York's Indus trial Hygiene Division. A terse description of the engineering precautions, to be observed applies to both the manufacture and the application of the substances. The necessity far highly efficient exhaust ventilation Is stressed. The observation is made that the only real protection against the hazards of benzene is Its complete elimination. -- Condensed from J. Ind. Byg.&Tox 100 Toxic Reactions from Plastics. Queries and Minor Notes. J. Am. Med. Assoc. 141," 1033 (Dec. 3, 1949). In reply to an inquiry regarding the possibility of toxic reactions from plastics, the writer refers to the vide spread use of such plastic articles as spectacle frames, belts, suspenders, garments, artificial eyes and food utensils. It is his opinion that injury from plastics Is mainly occupational; when polymerization has been oampleted, little damage may be'expected. Plastics 23SG and XYHL, when applied to human beings in^patch tests may elicit sensitizing reactions vlth a frequency of about three per cent. Caution should be exercised vlth respect to plastl cizers, stabilizers, hardeners, and remotely coloring agents.