NSF certifies drinking water filters to standards applicable to each type of treatment option. You may notice the NSF mark on a product along with numbers such as NSF/ANSI 53 or NSF/ANSI 42, which refer to the standard to which the filter has been certified.
The definition of a canon is a principle, law or standard by which people are judged or a member of the clergy living according to these principles or laws. An example of a canon is a moral principle that a group believes is correct or proper.
What is the canon of Scripture? Answer: The word âcanonâ comes from the rule of law that was used to determine if a book measured up to a standard. It is important to note that the writings of Scripture were canonical at the moment they were written. Scripture was Scripture when the pen touched the parchment.