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About This Item

 

Full Description

This Standard provides a methodology to compare, assess and document product sizing criteria for alternative or proprietary products with respect to conventional coarse aggregate used in onsite wastewater dispersal drainfields, based on comparative hydraulic performance.

The comparative treatment performance of alternative products compared to performance of conventional systems is not within the scope of this Standard.
 

Document History

  1. NSF/ANSI 240-2017

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    Drainfield Trench Product Sizing for Gravity Dispersal Onsite Wastewater Treatment and Dispersal Systems

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  2. NSF 240-2011


    Drainfield Trench Product Sizing for Gravity Dispersal Onsite Wastewater Treatment and Dispersal Systems

    • Historical Version