Historical

NSF/ANSI 40-2022

Residential Wastewater Treatment Systems

This standard contains minimum requirements for residential wastewater treatment systems having rated treatment capacities between 1,514 LPD (400 GPD) and 5,678 LPD (1,500 GPD). Management methods for the treated effluent discharged from residential wastewater treatment systems are not addressed by this standard.

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NSF International [nsf]

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Amendments & Corrections
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