Heavy Metal Test Results : Gravity Fed and Counter Top Systems

Water Filter Labs tested for the ability of the most common counter top and gravity fed filters to remove heavy metals such as lead, cadmium, arsenic and mercury as well as elements that have radioactive isotopes such as strontium, cesium, uranium, and aluminum reduction. Click the following link to view the test results: Water Filter […]

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Why do the log reduction levels differ for varying Berkey® element tests? Some laboratory results show testing to greater Log reduction (example: 99.9% vs. 99.99999%) than others.

“…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: […]

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Are the Black Berkey® Purification Elements NSF certified?

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 […]

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Will the Black Berkey® Purification Elements remove kerosene?

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 […]

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