WORK PLANS - Laserfiche WebLink

Home Browse Search

2.3 f..4,RO"TORY OPF.'RATIONS r A Callfornia-certified laboratory -will be used for all analyse-s. In accor- dance with sample custody protocol, the laboratory will perform the following operations for sample custody: { * Laboratory Receipt of Samples. • Pre-Analysis Storage/Preservation. • Post-Analysis Storage, 2,3,1 Laboratory Receipt of;Sapnples Once samples are received, the sample casLodian will inape; t the condi- tion of the samples, compare the information!on the sample labels against the Chain of Custody and Sample Identification Record form, and enter a laboratory control number into the;laboratory's computer inventory/tracking system. The laboratory's sample custodian will I maintain Custody of the samples until they are 'assigned Lo an analyst for analysis. If the sample custodian judges sample custody to be invalid, the labora- tory will initiate a nonconformance report. The laboratory will advise ERM-West fwmediately and will not analyze the sample(s) unless ERM-West so authorizes. IRM-West will decide the fate of the sam- ples) in question and sign the nonconformance report, Indicating the reason for the dislinsition. The sample(s) will either be processed "as is" with custody failure noted along with the analytical data, or rejected w1th biunpling rescheduled, if necessary. Each time custody of the sample(s) changes, the.'ILt:w sample custodian will sign the Chain of Custody and Sample Identification Record form and note the date. On sample destruction or disposal, the responsible custodian will coniplcte the Chain of Custody and Sample Identifi- cation Record form, file a copy, and send a copy to ERM-West. i 2.3.2 Pre-Analysts StoragelPreservation ,The laboratory employs sample storage and preservation procedures appropriate for the sample matrix. The procedures: • Retard hydrolysis of chemical compounds and complexes. Reduce :adsorption effects. 2-4