Characteristics of H.E. and H.E. systems. Quarterly report, October--December, 1964

Several samples of HMX to be used in LX-04-1 were particle sized and reported in this report. Most of the lots sized were very similar, with the major differences in the lots being at 2{micro}. Several counts in ``Rainbow`` Lot 26B of LX-04-1, made to obtain a color and weight distribution in several samples, and also a color count made in each sieve on a granulation analysis, show each color to be equally distributed; i.e., {approx} one-third of each color, green, yellow and white LX-04-1 granules, was present in the sample. Photographs and particle size curves of recrystallized PETN used in LX-02-1 are presented. These data were obtained by examining the original PETN used in a lot of LX-02-1, then performing several milling operations and recovering the PETN from the binder for another examination. The majority of the PETN appears to be crushed or broken in the first six passes on the three-roll mill with smaller changes taking place in the two-roll mill. The final {Pi} shows most of the PETN to be concentrated in the 4 to 8{micro} region. Photographs of two production lots of LX-02-1 subjected to a milling operation are also included. A description of the procedure used to recover the PETN from the LX-02-1 binder is included. Several solvents for the LX-02-1 binder and for different H.E.`s are listed. These were examined in an effort to find a new elutant to use with LX-04-1. The effects of different milling times on the binder have been examined by checking the solubilities in several of the solvents