NSF certifications are not required but rather optional. In our opinion, NSF certifications are limited in their application with respect to our gravity fed filtration elements. NSF Standard 42 (aesthetic effects) and Standard 53 (health effects) would specifically apply to our filtration elements. NSF Standard 42 covers systems “designed to reduce specific aesthetic or non-health-related […]
Monthly Archives: November 2014
What is the thread size for the Black Berkey® Element’s Stem?
The thread size on the stem of the Black Berkey® Elements is 11 mm. The outer diameter is about 3/8 of an inch and the inner is about 2/8 of an inch.
What is the plastic composition of the Sport Berkey® components (bottle, cap & straw)?
The Bottle is FDA LDPE The Cap is FDA HDPE The Straw is FDA PolyPro Please note that the number imprinted on the bottom of the Sport Berkey® refers to a lot number and is not a recycle code.
What are the washers for the Black Berkey® Elements made out of?
The washers are made of food grade Neoprene Rubber. However, keep in mind that the washers never touch the filtered water.
Will the Black Berkey® Elements remove kerosene?
Petroleum based products are some of the easiest to remove from water. The Black Berkey® Elements have been tested to reduce 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® Elements, click here However, please keep in mind that it […]
Do the Black Berkey® Elements remove lithium?
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.
How do I collect a water sample?
When testing a water sample, we recommend using this standard testing protocol
Do your filters take out plastic from the water?
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