QUALITY CONTROL PROCEDURE DATE DRAFTED: 30 January 1978 DOE/ERSP PROCEDURENO. 5 APPROVED: I. 7 February 1978 by Don R. Martin (ERSP Manager) Purpose To assure quality of results. IL Applicability This procedure applies to the Pacific Laboratory (DOE Element) on Enewetak Atoll Ill. Responsibility The Pacifie Laboratory chemist is responsible for the conduct of the Quality Control program. He will prepare blind spikes that will be processed in the normal procedure. At completion of processing the letters "QC" will be suffixed to the assigned sample number, and a comparison will be made between the known and obtained values. IV. Procedure A. Plutonium and americium by alpha spectroscopy. 1. Tracers: a. 2. Appropriate tracers will be added to determine the chemical recovery of plutonium and americium. b. The plutonium tracer will be cross-checked by alpha counting against an NBS standard, at time of preparation. The americium tracer will be an NBS standard. ec. Purity of tracer will be determined by alpha spectrometry at time of preparation. Duplicate analyses: a. A duplicate field sample will be run using the normal procedure once a week. 3. A reagent and glassware blank will be run after a high level (this to be determined by the chemist) sample has been processed. 4, Background soil: a. b. c. 5. Soil from Enewetak Island will be used as "background"soil. A sample of this background soil will be run once a week using the normal procedure. The same soil will be used to prepare the blind spikes. Spiked soil samples: a. A blind spike will be analyzed each week. This blind spike will have a known amount of Pu and/or americium comparable to amounts found in soil and the amounts of each will vary from week to week. A-5-1