Water Softeners – It’s All in the Family
By Rick Andrew Many of us are familiar with the concept of product families. This idea runs across many industries and product types and has common themes. Small-, medium- and large-size versions of a product […]
Testing Anion Exchange Systems for PFOA and PFOS Reduction
By Rick Andrew One of the technologies used to treat PFAS in water is anion exchange. Recognizing the relevance and importance of this technology in combating the growing occurrence and detection of PFAS in water, […]
Upcoming Adjustment to Lead Reduction Requirement under NSF/...
By Rick Andrew Lead in drinking water continues to be a major concern for the general public, especially those served by public water supplies with aging infrastructure. There are several ongoing initiatives to investigate potential […]
LED UV Systems and NSF/ANSI 55 Update
By Rick Andrew In May, this column discussed the fact that historically, NSF/ANSI 55 was limited in scope to POU and POE UV systems using low-pressure mercury UV sources. It described progress regarding updating that […]
Testing Mechanical Water Filtration Systems for Microbial Re...
By Rick Andrew Healthcare facilities have increased focus on infection prevention in recent years. Many of their patients are immunocompromised and therefore more susceptible to infection, so this increased focus can have a significant impact […]
By Rick Andrew PFAS, which as many of us have learned is short for per- and polyfluoroalkyl substances, continues to be a major topic in the news media and in industry discussions. PFAS compounds are […]
Evaluation of Cyst Reduction for Bottled Water Filters
By Rick Andrew The NSF/ANSI Drinking Water Treatment Unit (DWTU) standards include evaluation criteria for a wide variety of technologies and products. Requirements for a spectrum of products ranging from system components to multi-stage POU […]
Testing POU RO Systems for Reduction of PFOA and PFOS
By Rick Andrew Last month’s Water Matters column covered testing of POU activated carbon systems for reduction of PFOA and PFOS. In addition to updating NSF/ANSI 53, the NSF Joint Committee on Drinking Water Treatment […]
LED UV Systems and NSF/ANSI 55
By Rick Andrew NSF/ANSI 55 has historically covered only low-pressure mercury POU/POE UV systems. For years, this technology was the only one widely used for these systems, so this limitation of the scope was not […]
Testing Activated Carbon Systems for Reduction of PFOA and P...
By Rick Andrew Contamination of drinking water by per- and polyfluoroalkyl substances (PFAS) continues to be a major topic in the news media. On May 6, Environmental Working Group announced an update to their map […]