Reaction of N-sulfonylimines with methylenediamines

N-Sulfonylimines react with N-alkyl derivatives of linear and cyclic methylenediamines with insertion into the C-N bond and formation of the corresponding dialkylaminomethyltrialkylsulfonyldiamides and trialkyl-substituted 1,2,4,6-thiatriazacyclohexane 1,1-dioxides.Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 1, pp. 217–219, January, 1990.     

National ionizing radiation secondary laboratory system

Over the past ten years, the National Institute of Standards and Technology has, through its Office of Radiation Measurement, developed a national program for Secondary Laboratories. These Secondary Laboratories provide the necessary calibrations and quality assurance testing to support and affirm the caliber of the measurements in the areas they serve. The areas that are in the program include State Radiation Protection, Personnel Dosimetry, Survey Instrument Calibration, High-Level Dosimetry, Radiation Therapy, Bioassay, Survey Instrument Testing, Ionizing Radiation, Environmental Radioactivity, Radioactivity Standards, and Radon.