Results of testing the liability of various samples of fertilizer grade ammonium nitrate (AN) to self-heating are presented. Test methods applied comprises: DTA, TG, determination of mass loss at constant temperature, pH-measurement of aqueous solutions. The assessment of liability to self-heating is based on comparison to the relevant results of a standard AN product.
This paper describes a simple, reasonably rapid, and accurate technique developed for the multielement analysis of heavy metals
in surface waters using ion exchange filter papers and cyanide complexing in conjunction with neutron activation analysis.
The method employs large water volume irradiation for improved sensitivity.130Te was used as an internal flux monitor to correct for neutron flux variations in the samples. Proof of the value of this
technique was obtained by the analysis of 10 surface water samples previously analyzed using conventional methods by the U.
S. Geological Survey of the U. S. Department of Interior. Good agreement resulted from this comparison.