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	Download
Laboratory Evaluation of Six New/Modified Portable X-ray Fluorescence Spectrometers for the Measurement of Lead in Characterized Pain Films and Research Material Boards. Volume 2. Appendices. Williams, E. E; Clayton, C. A; Hardison, E. D; Gutknecht, W. F.	PB99162489	1999	636 pages
Laboratory Evaluation of Six New/Modified Portable X-ray Fluorescence Spectrometers for the Measurement of Lead in Characterized Paint Films and Research Material Boards. Volume 1. Technical Report. Williams, E. E; Clayton, C. A; Hardison, E. D; Gutknecht, W. F.	PB99162471	1999	338 pages