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Section No 6 <br /> Revision No 0 <br /> Date September 5, 1991 <br /> Page 12 of 55 <br /> Conditioning is accepted if background concentrations do not interfere <br /> with attaining required detection limits <br /> 6 3 3 3 Quality Control Analysis - QA analysis is performed on 10 <br /> percent of the conditioned containers or one bag per log, whichever is more <br /> If the QA analysis fails, the entire lot is reconditioned <br /> 6 3 3 4 Documentation - A travel history is kept for each sample <br /> container The dates of leak checks, conditioning, and sampling are <br /> documented QA analyses for conditioning, sample type and sample analyses <br /> are also documented Each container is given an identification number to <br /> ifacilitate travel history documentation Containers are used for a similar <br /> sample matrix throughout their sampling life <br /> 6 3 4 Sample Equipment Decontamination <br /> To minimize the potential of cross-contamination from one sample to the <br /> next, the following decontamination procedures will be adhered to- <br /> Stainless steel sampling probes will be decontaminated by the <br /> following procedure <br /> - Remove entrained soil materials by brushing and rinsing with <br /> water, <br /> - Wash with Liquinox and water or high-pressure steam, <br /> - Rinse with water, then dry, <br /> - Double rinse with deionized water, then dry, <br /> - Rinse with stream of zero-grade inert gas <br /> ® Pump will be decontaminated by rinsing with a heated stream of <br /> zero-grade inert gas, <br /> 6-12 <br />