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L <br /> NN S' <br /> SECTION VIII <br /> DATA HANDLING AND ASSESSME14T <br /> 1 <br /> A. Com uter Mana ement <br /> The laboratory utilizes a computerized sample control and <br /> data management system for collecting and reporting analy- <br /> tical data. Upon receipt, a sample is logged into the <br /> computer to initiate the process. Associated with each <br /> sample is a unique log number, client sample description, <br /> sample matrix type, the required analytical parameters, and <br /> due date. Also included is supplementary information such <br /> as special handling requirements. <br /> i The next morning, each section supervisor receives a packet <br /> of computer-generated work sheets listing work in house <br /> arranged according to analytical parameter and due date. <br /> The sheets listing groups of samples are then distributed <br /> fto the appropriate chemists. The chemist performs the <br /> necessary analysis and records the raw data in a <br /> permanently bound notebook. Calculations are carried out <br /> on a hand-held calculator and the final result is entered <br /> t by hand into the appropriate blank on the computer ti;ork <br /> sheet. <br /> 5 • That evening, the data input operator enters the day's <br /> results into the computer where they are transferred to <br /> "work awaiting approval" (WAA) status. The next morning <br /> the computer prints the previously entered results on work <br /> sheets which each analyst checks against the original data <br /> as recorded in the analytical notebook for that parameter. <br /> The analyst initials the entry to signify approval or can <br /> make corrections if. necessary. <br /> Later that day the initials are entered into the computer, <br /> which then transfers the data to the "report" file. When <br /> all the results for a par A cular sample have been entered <br /> and approved, a final report is printed. The printed <br /> report is reviewed by the section supervisor and signed by <br /> the Laboratory Director before being mailed to the client. <br /> This computerized system maintains a complete audit trail <br /> for the work done on each sample. information such as date <br /> ~ sampled, date received, analyst's name, date completed, and <br /> the analytical method used in each determination are all <br /> retrievable from the data base. <br /> VIII--1 <br /> i <br /> flowing, ilill EON g 11MEMi <br /> F <br />