National Technical Reports Library

The National Technical Information Service acquires, indexes, abstracts, and archives the largest collection of U.S. government-sponsored technical reports in existence. The NTRL offers online, free and open access to these authenticated government technical reports. Technical reports and documents in its repository may be available online for free either from the issuing federal agency, the U.S. Government Publishing Office’s Federal Digital System website, or through search engines.

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Title/Authors	Accession Number	Publication Year	Page Count
EPA (Environmental Protection Agency) Method Study 27, Method 200.7 Trace Metals by ICP (Inductively Coupled Plasma). Maxfield, R; Mindak, B.	PB85248656	1985	892 pages
Methods for the Determination of Metals in Environmental Samples. Supplement 1.	PB95125472	1994	264 pages
Methods for Field Studies of the Effects of Military Smokes, Obscurants, and Riot-Control Agents on Threatened and Endangered Species. Volume 4. Chemical Analytical Methods. Nam, S; Walsh, M. E; Day, J; Reinbold, K. A.	ADA368050	1999	761 pages