EPA Methods

The United States Environmental Protection Agency (EPA) maintains test methods, 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.[1] There are other types of methods such as the ASTM and United States Pharmacopeia, but the EPA Methods are the most widely accepted and used.

Nomenclature

The method numbers generally range from 1 to 9000 and may have modification letters appended to the end, signifying a newer version of the method has been released. Some ranges of numbers appear to be organized with intention, for example methods 1-99 being air methods or the 7000s being for hazardous waste.[2] Others number ranges, however, seem to only contain random methods, like the 300 and 400 series both being for wet chemistry methods.[3]

Searchable databases

Since the EPA methods are created by different regulatory departments within the EPA, finding methods on the EPA website itself can be challenging.[1] To make finding methods easier, some organizations have created method search databases that organize all the methods into one place and link to actual test methods. Some allow searching by method number, analyte, or other keywords in the method.[4][5]

See also

References
  1. Peg Nelson. "Index to EPA Test Methods" (PDF). Archived from the original (PDF) on 13 October 2006. Retrieved 16 January 2022.
  2. "Hazardous Waste | US EPA". Epa.gov. 2016-11-28. Retrieved 2017-03-17.
  3. "EPA METHODS 300 SERIES". Caslab.com. Retrieved 2017-03-17.
  4. "Epa Methods". Caslab.com. Retrieved 2017-03-17.
  5. "Browse Methods in NEMI". Archived from the original on 5 August 2012. Retrieved 16 January 2022.
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.