What are the certification standards and who sets those standards for POU filtration devices?
The certification standards vary from region to region and some parts of the world don’t have any. The certification standards are set by governmental institutions, industries associations and or combination of both. For example ISO (International Standard Organization, Zurich, Switzerland) sets world standards in manufacturing procedures (toughest to achieve and maintain), while in U.S., ANSI (American National Standard Institute) set standards. For example: In US for food equipment and POU devices NSF in collaboration with ANSI write standards that will meet EPA and FDA guidelines. NSF standards for POU filtration devices are 42, aesthetic contaminants (chlorine reduction) and 53, health related contaminants (cysts and turbidity reduction).
