High Flow samplers remain the most useful and accurate tool for the direct measurement of fugitive and vented emission sources in the field. Operators may be obligated to measure certain emissions with the high-flow sampler for regulatory, reporting, or internal environmental and/or maintenance programs. The most commonly used commercial unit of the last 20+ years has been the Bacharach Hi-Flow Sampler, though it was recently discontinued by the manufacturer. The supply of new units and spare parts is exhausted, leaving an unmet need for direct emission measurement capabilities. Though...
High Flow samplers remain the most useful and accurate tool for the direct measurement of fugitive and vented emission sources in the field. Operators may be obligated to measure certain emissions with the high-flow sampler for regulatory, reporting, or internal environmental and/or maintenance programs. The most commonly used commercial unit of the last 20+ years has been the Bacharach Hi-Flow Sampler, though it was recently discontinued by the manufacturer. The supply of new units and spare parts is exhausted, leaving an unmet need for direct emission measurement capabilities. Though several research groups have constructed their own high-flow samplers as prototypes or in low volumes, the need for a commercial replacement of the Bacharach unit was recognized by several manufacturers who are bringing new and updated high-flow units to the market. This report will outline the capabilities and qualities of these currently available commercial units to provide interested users with the background needed to inform their purchasing decision.