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Laboratory Services

Laboratory Methods

EPA offices and laboratories, and outside organizations, have developed approved methods for measuring the concentration of a substance or pollutant. Below are categories of methods. Learn about how methods are developed on the Method Development page.

A Note About Research and Development Methods
Most of these methods are considered "laboratory validated" because they have not been formally adopted for use by a program office, nor have they been integrated into a regulatory program. However, some of these methods are in the process of being formalized.

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Air and Radiation

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Prevention, Pesticides, and Toxic Substances

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Research and Development

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Solid Waste and Emergency Response

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