Click here to purchase
The purpose of this Standard is to establish minimum requirements for materials, design and construction, and performance of drinking water treatment systems that are designed to reduce specific health-related contaminants in public or private water supplies.
This Amendment contains the following revisions:
- Issue 94 – The revision corrects an error recently found in NSF/ANSI 53. When the standard was reformatted several years ago, section 1.3 – Alternate materials, designs, and construction was mistakenly omitted (it is currently still listed in NSF/ANSI 42). This language has been reinserted to its previous location under section 1.
- Issue 95 – The revision allows for a shorter cycle time for performance indication devices (PID) during the flow test method under section 6.
- Issue 96 – The revision allows for alternate methods for enumerating the stock oocyst and microsphere suspensions.
- Issue 97 – The revision removes the reference to using formaldehyde as a disinfectant when perparing oocyts in the procedure under Annex A of NSF/ANSI 53.
Product Details
- Published:
- 08/01/2014
- ANSI:
- ANSI Approved
- Number of Pages:
- 16
- File Size:
- 1 file , 690 KB
