Riley, W. D.
Spectral characteristics of grinding sparks used for identification of scrap metals / by W.D. Riley, B.W. Dunning, Jr., and D.M. Soboroff. - [Avondale, Md.] : U.S. Dept. of the Interior, Bureau of Mines, 1985. - 13 p. : ill. - Report of investigations ; 8932 . - Report of investigations (United States. Bureau of Mines) ; 8932. .
Scrap metals--Identification.
Spark tests.
Spectral characteristics of grinding sparks used for identification of scrap metals / by W.D. Riley, B.W. Dunning, Jr., and D.M. Soboroff. - [Avondale, Md.] : U.S. Dept. of the Interior, Bureau of Mines, 1985. - 13 p. : ill. - Report of investigations ; 8932 . - Report of investigations (United States. Bureau of Mines) ; 8932. .
Scrap metals--Identification.
Spark tests.