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MAP20071018313Pipeline radiography : data sheet I-600-79, revised 1979Sumario: Regular inspection of pipeline field welds by radiography began in the late 1940s. Acceptance of this non-destructive testing was virtually industry wide by the early 1950s. The purpose of this data sheet is to examine the special hazards encountered in radiography, and examine the methods used to control themEn: National safety news. - Chicago. - Vol. 120, nº 5, November 1979 ; p. 67-701. Higiene industrial. 2. Contaminantes físicos. 3. Radiaciones. 4. Radiaciones ionizantes. 5. Rayos X. 6. Riesgo laboral. 7. Tuberías. 8. Soldadura. I. Título. II. Título: National safety news.