EPA Methods

<p>The <a href="/facts/United_States_Environmental_Protection_Agency/ghI985SI">United States Environmental Protection Agency</a> (EPA) maintains and approves <a href="/facts/Test_method/sGtHudUV">test methods</a>, which are approved procedures for measuring the presence and concentration of physical, chemical and biological contaminants; evaluating properties, such as toxic properties, of chemical substances; or measuring the effects of substances under various conditions. The methods in the Agency index are known as EPA Methods. There are other types of methods such as the <a href="/facts/ASTM/xzdCexYJ">ASTM</a> and <a href="/facts/United_States_Pharmacopeia/CyYDYG8m">United States Pharmacopeia</a>, but the EPA Methods are developed through a regulatory process involving public notice, comment and revision and are legally binding whereas ASTM methods are developed through a consensus process and compliance is voluntary. These methods are developed to help standardize and achieve the EPA mission to protect the environment and human health.
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EPA Methods open-in-new

EPA Methods