“…The quantitation limit of an individual analytical procedure is the lowest amount of analyte in a sample which can be quantitatively determined with suitable precision and accuracy. The quantitation limit is a parameter of quantitative assays for low levels of compounds in sample matrices, and is used particularly for the determination of impurities and/or degradation products…” REFERENCE: […]
If you have used your elements: The method of storage depends upon the length of time that the Black Berkey® Purification Elements will not be used: If the filters will not be used between 4 to 15 days and you want to avoid the re-priming process, remove the filters from the system, place them into […]
NSF certifications are not required but rather optional. In our opinion, NSF certifications are limited in their application with respect to our gravity fed purification elements. NSF Standard 42 (aesthetic effects) and Standard 53 (health effects) would specifically apply to our purification elements. NSF Standard 42 covers systems “designed to reduce specific aesthetic or non-health-related contaminants […]
The thread size on the stem of the Berkey Purification Elements is 11 mm.The outer diameter is about 3/8 of an inch and the inner is about 2/8 of an inch.
The washers are made of food grade Neoprene Rubber. However, keep in mind that the washers never touch the filtered/purified water.
Petroleum based products are some of the easiest to remove from water. The Black Berkey® Purification Elements have been tested to remove the following petroleum contaminants up to 99.9%: Gasoline Diesel Crude Oil Kerosene Mineral Spirits Refine Oil For complete lab results on the Black Berkey®Purification Elements, click here However, please keep in mind that it […]
It is our understanding that Lithium is an alkali metal, found in Group 1 of the Periodic Table. Lithium can be very reactive when exposed to water. Current testing of this potential contaminant has not been conducted, at this time.
There are various plastic materials that can be leeched into water and the most common are BPA ( Bisphenol A) and 1,1-Dichloroethane (11-DCA). The Black Berkey elements have been tested to remove both of these plastic materials. Please refer to our lab testing results by clicking here
Do your Black Berkey® purification elements filter out all the drugs/pharmaceuticals that are in our city-water?
We have no way of knowing exactly what potential contaminants may be in each person’s water supply. What we do know is that our Black Berkey® purification elements filter out numerous pharmaceutical drugs and endocrine-disruptors (EDCs); such as BPA, Naproxin, Octylphenol, Progesterone, THM’s and many more. Please click here to view some of our most […]
When water is filtered through our system, the Black Berkey® Purification Elements increase the PH level of the water. This is healthful because pathogenic bacteria and viruses thrive in acidic environments and have difficulty surviving in alkaline environments. An environment with more alkalinity does have a higher PH level. The PH level will depend on various […]