Product listings and certifications by NSF (the National Sanitation Foundation International) are easily perplexed, which is the reason we thought to create a quick guide on NSF 61 approved water meter and explain the way water filters earn this certification.
NSF International is a non-profit firm that was founded in 1944 to promote good sanitation. The corporation works with the key objective of bringing together specialists in public health, manufacturing, and sanitation. These professionals come from public, academia, industry, and government background to develop and manage performance standards for products that have some impact on public health and sanitation.
NSF maintains up to date and high-tech laboratories where products are tested as per the standards they establish. Products are submitted by manufacturers willingly. The product is “listed” if the test is passed, and certain tested claims are “certified”. Such products are now certified to display the NSF or ANSI seal on their labels and literature.
In addition, you can even get a WQA approved water meter in the market. The reputation of NSF International for credibility, independence, and thoroughness has made it one of the most trusted public agencies across the globe. This highly recognized firm has even obtained the distinction of being appointed a registrar for the ISO (International Standards Organization) and a WHO (World Health Organization) Collaborating Center for Water Safety and Treatment.
There are 2 NSF International / ANSI Standards for “Drinking Water Treatment Units”.
- Standard 42 for Aesthetic Effects, and
- Standard 53 for Health Effects
These standards are similar and most of the fundamental requirements are the same for both. A water filter that is “NSF-Listed” or has claims that it is “NSF-Certified” basically signifies:
- It has been considerately designed and circumspectly constructed
- Adequately and truthfully labeled and advertised
- Routinely re-tested, and manufacturing procedures, documentation and facilities are inspected and audited annually
In addition, “good manufacturing practices” are required of every “listed” product. It has been tested and approved for one or more specific functions that are required to be listed immediately.
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