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Report of the USGS's evaluation program for standard reference samples distributed in April 1993: T-123, T-125, M-126, N-38, N-39, P-20 and Hg-16: USGS Open-File Report 93-436 - Tapa blanda

Long, H. K.; Farrar, J. W.

 
9781288955503: Report of the USGS's evaluation program for standard reference samples distributed in April 1993: T-123, T-125, M-126, N-38, N-39, P-20 and Hg-16: USGS Open-File Report 93-436
Tapa blanda
ISBN 10: 1288955502 ISBN 13: 9781288955503
Editorial: BiblioGov, 2013

Sinopsis

This report presents the results of the U.S. Geological Survey's analytical evaluation program for seven standard reference samples--T-123 (trace constituents), T-125 (trace constituents), M-126 (major constituents), N-38 (nutrients), N-39 (Nutrients), P-20 (precipitation-low ionic strength), and Hg-16 (mercury)--that were distributed in April 1993 to 175 laboratories registered in the U.S. Geological Survey sponsored interlaboratory testing program. Analytical data received from 131 of the laboratories were evaluated with respect to: overall laboratory performance and relative laboratory performance for each analyte in the 7 reference samples. Results of these evaluations are presented in tabular form. Also presented are tables and graphs summarizing the analytical data provided by each laboratory for each analyte in the seven standard reference samples. The most probable value for each analyte was determined using nonparametric statistics.

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Reseña del editor

This report presents the results of the U.S. Geological Survey's analytical evaluation program for seven standard reference samples--T-123 (trace constituents), T-125 (trace constituents), M-126 (major constituents), N-38 (nutrients), N-39 (Nutrients), P-20 (precipitation-low ionic strength), and Hg-16 (mercury)--that were distributed in April 1993 to 175 laboratories registered in the U.S. Geological Survey sponsored interlaboratory testing program. Analytical data received from 131 of the laboratories were evaluated with respect to: overall laboratory performance and relative laboratory performance for each analyte in the 7 reference samples. Results of these evaluations are presented in tabular form. Also presented are tables and graphs summarizing the analytical data provided by each laboratory for each analyte in the seven standard reference samples. The most probable value for each analyte was determined using nonparametric statistics.

"Sobre este título" puede pertenecer a otra edición de este libro.

Editorial
BiblioGov
Año de publicación
2013
Idioma
Inglés
ISBN 10 
1288955502
ISBN 13 
9781288955503
Encuadernación
Tapa blanda
Número de páginas
158
Contacto del fabricante
no disponible
Persona responsable
no disponible