ASTM D7929-14
- Standard Guide for Selection of Passive Techniques for Sampling Groundwater Monitoring Wells
- standard by ASTM International, 08/15/2014
- Category: ASTM
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1.1 This standard provides guidance and information on passive sampling techniques for collecting groundwater from monitoring wells. Passive groundwater samplers are able to acquire a sample at a discrete depth or interval in a well, without the active transport associated with a pump or purge technique (1).2 Passive groundwater sampling is a type of no-purge groundwater sampling method where the samplers are left in the well for a predetermined period of time prior to collecting the sample.
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