Safety standard for non-medical X-ray and sealed gamma-ray sources /
by Subcommittee 1, General Provisions and Methods and Materials Protection, of the ASA Z54 Sectional Committee, under the sponsorship of the National Bureau of Standards. Approved July 1, l963 as American standard, by the American Standards Association (ASA designation Z54.1-1963, UDC 614.898.537.531).

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Full view   Part 1: General University of Illinois at Urbana-Champaign