Laserfiche WebLink
Section i l Sampling Considerations <br /> This section provides considerations for special sampling configurations that a sampler may collect in <br /> the field such as a field duplicates or an ambient blank. This section also provides considerations for <br /> sampling at altitude, soil/landfill gas sampling, and sample cylinder sampling. <br /> 5.1 Special Sampling Configurations <br /> Special sampling configurations include a field duplicate, field split, field blank, ambient blank, trip <br /> blank, and an equipment rinse. Call Client Services at 800-985-5955 if your project involves any of <br /> these special sampling configurations. <br /> 5.7.9 Field Duplicate <br /> A field duplicate is a second sample collected in the field simultaneously with the primary sample at <br /> one sampling location. The results of the duplicate sample can be compared(e.g., calculate relative <br /> percent difference)with the primary sample to provide information on consistency and reproducibility <br /> of field sampling procedures. Due to the nature of the gas phase, duplicate samples should be collected <br /> from a common inlet. The configuration for collecting a field duplicate includes stainless steel or <br /> Teflon tubing connected to a Swagel.ok"tee". <br /> � L <br /> AIR ToxtCS LTD. <br /> 20 <br />