01284nam a2200181   4500001000700000100004100007101000800048101000800056101000800064200037500072210003100447215002200478330042800500606001400928606001600942606003400958710011000992383034  a20050929d1961       y0pory50      ba  aeng  afre  ager  aProceedings of the International Symposium on Maximum Allowable Concentrations of Toxic Substances in Industry, held in Prague, Czechoslovakia, April 1959fInternational Union of Pure and Applied Chemistry, Applied Chemistry Section, Toxicology and Industrial Hygiene Division in conjunction with Permanent Commission and International Association of Occupational Health  aLondoncButterworthsd1961  aix, 373 p.d25 cm  aResolutions of the symposium. I. Study of the definitions and views, in different countries, of maximum allowable concentrations. II. Study of methods and procedures used, in different countries, to estimate and assign maximum allowable concentrations. III. Study of maximum allowable concentration in biological materials. IV. Study of the rôle of chemical and physical methods of analysis, and of sampling, in industry.  aQUÍMICA  aTOXICOLOGIA  aSAÚDE E HIGIENE NO TRABALHO  aINTERNATIONAL SYMPOSIUM ON MAXIMUM ALLOWABLE CONCENTRATIONS OF TOXIC SUBSTANCES IN INDUSTRYePraguef1959