EDITOR'S COLUMN Small apparatus and various material employed (joints, stoppers, glass, silica, plastic materials, metals, etc.) Manual or automatic apparatus employed for the mineralization (combustion) Apparatus employed lor t h e measurements (balances, burettes, colorimeters, spectrophotometers, potentiometers, coulometric, conductometric, or thermal eonductometric set-ups, recorders, integrators, etc.). Possible influence of automation Operative parameters (temperature, rate of gas flow, pressure, etc:.) Knvironment parameters (temperature, relative humidity, atmospheric pressure, air pollution, vibrations situation and exposure of the laboratory, place or position of installation in the laboratory, etc.) Subject parameters (manipulations, lecturers, observations) Operative methods and techniques 8. Means employed for characterizing the source of error (if possible) 9. Modifications eventually used with the intention of diminishing or eliminating the error 10. Suggestions 11. Specific questions
The deadline for t h e reports is J u l y 1, 1964. T h e present study is already in progress: consequently, the reports, can be addressed without delay t o t h e following members of t h e Study Group on Errors in E l e m e n t a r y Organic Analysis: a. American reports in the English language t o : D r . Al Stcyermark, Chairman, Commission on Microchemical Techniques, HoffmannLa Roche, Inc., N u t l e y 10, N . J. b. E u r o p e a n reports in the G e r m a n or Slavic languages (with the exception of Russian) t o : D r . Wolfgang Schôniger, Secretary, Commission on Microchemical Techniques, M i croanalytical L a b o r a t o r y , Dept. of P h a r m a c e u t i c a l Chemistry, Sandoz, Ltd., Basle 13, Switzerland. c. Reports originating in Russia t o : D r . Ν . Ε . Gel'man, Associate M e m ber, Commission on Microchemical Techniques, I n s t i t u t e on Elemental Organic Compounds, Academy of Sciences, Moscow, Russia. d. Reports in the English, French, or G e r m a n languages which origi n a t e in countries other t h a n those listed in a, b, a n d c, t o : D r . Roger Levy, T i t u l a r Member, Commis sion on Microchemical Techniques, C h a i r m a n , Study G r a u p on Errors in E l e m e n t a r y Organic Analysis, Central D e p t . of Microanalysis of the N a t i o n a l Center of Scientific Research, 39 bis, r u e de Datzig, P a r i s 15, F r a n c e .
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