Code of Federal Regulations: Containing a Codification of Documents of General Applicability and Future Effect as of December 31, 1948, with Ancillaries and IndexDivision of the Federal Register, the National Archives, 1992 - Administrative law |
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Page 326
... concentration levels for each parameter by carefully adding 20.0 μL of one or more secondary dilution standards to 100 , 500 , or 1000 mL of reagent water . A 25 - μL syringe with a 0.006 in . ID needle should be used for this operation ...
... concentration levels for each parameter by carefully adding 20.0 μL of one or more secondary dilution standards to 100 , 500 , or 1000 mL of reagent water . A 25 - μL syringe with a 0.006 in . ID needle should be used for this operation ...
Page 327
... concentration of a specific parameter in the sample is being checked against a regu- latory concentration limit , the spike should be at that limit or 1 to 5 times higher than the background concentration determined in Section 8.3.2 ...
... concentration of a specific parameter in the sample is being checked against a regu- latory concentration limit , the spike should be at that limit or 1 to 5 times higher than the background concentration determined in Section 8.3.2 ...
Page 328
... concentration would be larger . 8.3.2 Analyze one 5 - mL sample aliquot to determine the background concentration ( B ) of each parameter . If necessary , prepare a new QC check sample concentrate ( Sec- tion 8.2.1 ) appropriate for the ...
... concentration would be larger . 8.3.2 Analyze one 5 - mL sample aliquot to determine the background concentration ( B ) of each parameter . If necessary , prepare a new QC check sample concentrate ( Sec- tion 8.2.1 ) appropriate for the ...
Page 330
... Concentration ( μg / L ) where : = ( A , ) ( C1 ) ( A ) ( RF ) A , = Response for the parameter to be measured . A1 = Response for the internal standard . C11 = Concentration of the internal stand- ard . 11.2 Report results in μg / L ...
... Concentration ( μg / L ) where : = ( A , ) ( C1 ) ( A ) ( RF ) A , = Response for the parameter to be measured . A1 = Response for the internal standard . C11 = Concentration of the internal stand- ard . 11.2 Report results in μg / L ...
Page 332
... concentration of 20 μg / L . Q = Concentration measured in QC check sample , in μg / L ( Section 7.5.3 ) . s = Standard deviation of four recovery measurements , in μg / L ( Section 8.2.4 ) . X - Average recovery for four recovery ...
... concentration of 20 μg / L . Q = Concentration measured in QC check sample , in μg / L ( Section 7.5.3 ) . s = Standard deviation of four recovery measurements , in μg / L ( Section 8.2.4 ) . X - Average recovery for four recovery ...
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Common terms and phrases
1,1,1-Trichloroethane 1,2-Dichloroethane 1,4-Dichlorobenzene acceptance criteria accuracy accuracy and precision acid Aldicarb amended analysis analyzed applicable approved benzidine calculate calibration standards centration check sample concentrate chemical Clean Water Act cleanup coliforms column compliance compounds containing detector determined dilution Director discharge draft permit drinking water effluent effluent limitations Endosulfan Endrin Environmental extract facility flask gas chromatograph hearing Heptachlor hexane injected internal standard issued laboratory measured ment methylene chloride mg/L modified monitoring notice NPDES NPDES permit paragraph parameter percent recovery phenol POTW Presiding Officer procedure Protection Agency public water system pursuant QC check sample RCRA reagent water Regional Administrator request rinse Section 8.2 separate storm sewer Sodium sodium sulfate specified spike stock standard storm sewer storm water subpart syringe Table technique temperature tion Toxaphene toxic pollutants treatment trihalomethane wastewater water quality standards µg/L