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RESNA Industnes Inc �� <br /> Quality Assurance/Quality Control Plan <br /> Revised November I992 <br /> ' a temperature of 4°C A high-low thermometer will accompany the samples to document <br /> transport conditions Further discussion of sample preservation is included in the sampling <br /> protocols (Sections 11.0 and 12 0). <br /> ' 5.0 CHAIN-OF-CUSTODY PROCEDURES <br /> 5.1 Sample labels <br /> Each sample container will be labeled prior to filling to prevent misidentification. The <br /> label will contain at least the following information <br /> ✓ sample number which uniquely identifies the sample <br /> ' ✓ project title or number <br /> ✓ location of sample collection <br /> ✓ soil boring or well number, as applicable <br /> ✓ name of collector <br /> ✓ date and time of collection <br /> ✓ type of analysis requested <br /> 5.2 Chain-of-Custody Record and Sample Analysis Request Form <br /> ' A chain-of-custody record for each container or sample will be used to track possession <br /> of the samples from the time they were collected in the field until the time they are <br /> analyzed in the laboratory. <br /> ' The chain-of-custody record will contain the following information: <br /> ' ✓ site name <br /> ✓ signature of collector <br /> ✓ date and time of collection <br /> ' ✓ sample identification number(s) <br /> ✓ number of containers in sample set <br /> ✓ description of sample and container(s) <br /> ✓ name and signature of persons, and the companies or agencies they <br /> represent, who are involved in the chain of possession <br />