Dilution factor - Revision history

Shawndouglas: Updated article

2022-09-22T20:57:17Z

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	~~When a [[sample]] is diluted, its~~ '''dilution factor''' = (~~Concentration ''before'' dilution / Concentration ''after'' dilution~~).<ref>~~SEDD Specification 5.0 http~~://www.epa.gov/~~superfund~~/~~programs~~/~~clp~~/~~seddspec5~~.~~htm~~</ref>		The '''dilution factor''', as defined by the [[United States Environmental Protection Agency]] via its [[Staged Electronic Data Deliverable\|SEDD Specification]] Version 5.2, is "the overall dilution of the [[Sample (material)\|sample]] [[aliquot]] for a particular analysis. A value of one corresponds to nominal conditions for the method. Values greater than one correspond to dilutions. Values less than one correspond to concentrations." The EPA adds<ref name="SEDD5.2_19">{{cite web \|url=https://www.epa.gov/sites/default/files/2019-05/documents/sedd_spec_v5-2-march_2019_508.pdf \|format=PDF \|title=Appendix A. Data Element Dictionary (DED) \|work=SEDD Specification Version 5.2 \|author=U.S. Environmental Protection Agency \|date=March 2019 \|accessdate=22 September 2022}}</ref>:

	~~In regards to~~ the ~~overall~~ dilution of ~~the aliquot subjected~~ to analysis~~, a value of one corresponds to nominal~~ conditions ~~for~~ the ~~method. Values greater than one correspond~~ to ~~dilutions. Values less than one correspond to concentrations~~.		<blockquote>Exactly which factors are included in the dilution factor may depend on the method. The most common usage involves dilution of a prepared extract immediately prior to analysis. Under these conditions the initial sample weight or volume would not normally be taken into account unless the sample were to be directly introduced into the instrument.</blockquote>

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	[[Category:Testing terminology]]		[[Category:Testing terminology]]

Shawndouglas: Added cat

2014-08-06T20:22:56Z

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← Older revision		Revision as of 20:22, 6 August 2014
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	When a [[sample]] is diluted, its dilution factor = (Concentration ~~BEFORE~~ dilution / Concentration ~~AFTER~~ dilution).		When a [[sample]] is diluted, its '''dilution factor''' = (Concentration ''before'' dilution / Concentration ''after'' dilution).<ref>SEDD Specification 5.0 http://www.epa.gov/superfund/programs/clp/seddspec5.htm</ref>

	~~<ref> SEDD Specification 5.0 http://www.epa.gov/superfund/programs/clp/seddspec5.htm</ref>The~~ overall dilution of the aliquot subjected to analysis~~. A~~ value of one corresponds to nominal conditions for the method. Values greater than one correspond to dilutions. Values less than one correspond to concentrations.		In regards to the overall dilution of the aliquot subjected to analysis, a value of one corresponds to nominal conditions for the method. Values greater than one correspond to dilutions. Values less than one correspond to concentrations.

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			[[Category:Testing terminology]]

Gilnari at 21:47, 25 April 2011

2011-04-25T21:47:49Z

← Older revision		Revision as of 21:47, 25 April 2011
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	When a [[sample]] is diluted, its dilution factor = (Concentration BEFORE dilution / Concentration AFTER dilution).		When a [[sample]] is diluted, its dilution factor = (Concentration BEFORE dilution / Concentration AFTER dilution).

			<ref> SEDD Specification 5.0 http://www.epa.gov/superfund/programs/clp/seddspec5.htm</ref>The overall dilution of the aliquot subjected to analysis. A value of one corresponds to nominal conditions for the method. Values greater than one correspond to dilutions. Values less than one correspond to concentrations.

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			<references/>

Shawndouglas: Created article stub.

2011-04-20T20:51:53Z

Created article stub.

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When a [[sample]] is diluted, its dilution factor = (Concentration BEFORE dilution / Concentration AFTER dilution).