NSF 40:2018
Superseded
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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Residential Wastewater Treatment Systems
Published date
24-01-2018
Publisher
Superseded date
29-12-2025
Superseded by
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NSF/ANSI 40 is a standard for residential wastewater treatment systems with rated capacities between 400 and 1,500 gallons (1,514 and 5,678 liters) per day.
| DocumentType |
Standard
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| PublisherName |
NSF International
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| Status |
Superseded
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| Supersedes |
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