Historical

NSF/ANSI 240-2017

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


Establishes minimum material, design, construction, and performance requirements for comparing gravity dispersal drainfield products based on hydraulic performance used in place of conventional coarse aggregate within onsite wastewater treatment and dispersal systems.


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NSF International [nsf]

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