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Identification and analyses of copper-base alloys by fluorescent x-ray spectrography.

Authors
Campbell-WJ; Marr-HE III
Source
NTIS: PB 210 168 :1-30
Link
NIOSHTIC No.
10008871
Abstract
Three types of x-ray analytical instrumentation were compared for applications in the secondary brass and bronze industry. The instruments were a conventional x-ray spectrograph, a portable x-ray spectrograph, and a radioisotopic x-ray analyzer using balanced filters. The following two general applications were considered: rapid identification for sorting scrap metals and quantitative analyses to provide guidance in the melting and casting of alloys. Twenty-three analyzed copper-base alloys were used as standards. Although the alloys varied widely in composition, matrix correction procedures were not necessary except for copper. The conventional x- ray spectrograph provides positive identification of the alloys and quantitative values for the six elements investigated--aluminum, copper, iron, lead, tin, and zinc. Equivalent results were obtained with the portable x-ray spectrograph for these elements whose characteristic x-rays are in the wavelength range of the instrument. The radioisotopic x-ray analyzer distinguishes certain groups of alloys and provides quantitative determinations for copper, lead, tin, and zinc. The sensitivity of the analyzer was marginal for the determination of small concentrations of elements of atomic number 26 or lower.
Publication Date
19720101
Document Type
IH; Report of Investigation;
Fiscal Year
1972
NTIS Accession No.
PB-210168
NTIS Price
A03
Identifying No.
RI 7635
NIOSH Division
CPRC;
Source Name
NTIS: PB 210 168
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