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8 At the time of receipt of samples by the laboratory, the shipping container will be inspected <br /> and the sealing signature will be checked, the samples will be inspected for condition and <br /> bubbles and the temperature of a representative sample container will be measured extemaily <br /> by a thermocouple probe (held tightly between two samples) and recorded The laboratory <br />' OC numbers will be placed on the labels, in the accession log, and on the chain-of-custody <br /> form If samples are acidified their pH will be measured by narrow range pH paper at the time <br />' of opening for analysis All comments concerning procedures requiring handling of the <br /> samples will be dated and Initialed on the form by the laboratory person performing the <br /> procedure A copy of the completed chain-of-custody form with the comments on samples <br />' integrity will be returned to the sampler <br /> SOP 11 Page 2 of 2 <br /> GROUNDWATER <br /> TECHNOLOGY,INC <br />