The Equilibrator™ Standard PDB is constructed from a semi-permeable polyethylene membrane, filled with deionized water, and lowered into the flow portion of the saturated screen where it resides for a minimum of 14 days. The semi-permeable, hydrophobic membrane has pores that allow the movement of VOC molecules between the well water outside the sampler and the deionized water inside the sampler so that once the sampler comes to equilibrium, it can be removed to capture an aquifer-representative sample.Why Use the Standard PDB?Proven accurate to sample for VOCsReduce sampling cost 50%-80%Highly Portable, No Special Tools or EquipmentObtain Depth-Specific ConcentrationCan be used for Vertical ProfilingCan be used to Sample Slow Recharge WellsA Greener sampling method; less disposable material, no batteries, gasoline or waste.Custom Suspension Tether Preparation ServiceDon't spend time on site measuring out where to put your samplers to collect accurate samples. EON will use your well construction data to create cut-to-length suspension tethers for individual wells so that all you need to do on each sampling event is connect your samplers to the pre-set attachment points. Click here for more detail. Standard PDB’s Chart*To sample additional constituents than VOC’s, go to Dual Membrane PDB Part NumberSampler TypeMaximum Sampler VolumeMinimum Well DiameterDimensionsBottom WeightsStandard ConnectionsGSD125-PF1Standard PDB - Prefilled80mL1" Wells (Sch 40 & 80)0.75" OD x 18" Length6oz (GSW301)Cable Ties (FSF106)GSD152-PF1Standard PDB - Prefilled225mL1" Wells (Sch 40 & 80)0.75" OD x 48" Length6oz (GSW301)Cable Ties (FSF106)GSD163-PF1Standard PDB - Prefilled150mL1.5" Wells (Sch 40 & 80)1.3" OD x 18" Length8oz (GSW305) or 11oz (GSW310)Cable Ties (FSF106)GSD165-PF1Standard PDB - Prefilled250mL1.5" Wells (Sch 40 & 80)1.3" OD x 24" Length8oz (GSW305) or11oz (GSW310)Cable Ties (FSF106)GSD170-PF1Standard PDB - Prefilled375mL1.5" Wells (Sch 40 & 80)1.3" OD x 36" Length8oz (GSW305) or11oz (GSW310)Cable Ties (FSF106)GSD190Standard PDB - Unfilled150mL2" Wells (Sch 40 & 80)1.75" OD x 12" Length8oz (GSW311) or20oz (GSW312)Cable Ties (FSF106)GSD200Standard PDB - Unfilled350mL2" Wells (Sch 40 & 80)1.75" OD x 18" Length8oz (GSW311) or20oz (GSW312)Cable Ties (FSF106)GSD200-PF1Standard PDB - Prefilled350mL2" Wells (Sch 40 & 80)1.75" OD x 18" Length8oz (GSW311) or20oz (GSW312)Cable Ties (FSF106)GSD210Standard PDB - Unfilled500mL2" Wells (Sch 40 & 80)1.75" OD x 24" Length8oz (GSW311) or20oz (GSW312)Cable Ties (FSF106)GSD210-PF1Standard PDB - Prefilled500mL2" Wells (Sch 40 & 80)1.75" OD x 24" Length8oz (GSW311) or20oz (GSW312)Spring Clip (GSH310)
