00807nam a2200157   4500001000700000100004100007101000800048200006400056210004800120215002200168300023300190330012100423606001400544606001100558710008000569382877  a20050729d1955       y0pory50      ba  aeng  aReagent chemicalseAmerican Chemical Society specifications  aWashingtoncAmerican Chemical Societyd1955  axv, 428 p.d25 cm  a"Prepared by the 1955 Committee on Analytical Reagents, Edward Wichers, chairman. Officially approved by the Council of the American Chemical Society, April 3, 1955. Edited and produced by staff members of analytical chemistry."  aForeword. Preface, edition of 1950. Preface, edition of 1955. Definitions, procedures and standards. Specifications.  aQUÍMICA  aENSAIO  aESTADOS UNIDOSbAmerican Chemical Society. Committee on Analytical Reagents