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 Special edition of the Federal Register, containing a codification of documents of general applicability and future effect ... with ancillaries. |
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Page 323
... purge and trap gas chroma- tographic ( GC ) method applicable to the de- termination of the compounds listed above in municipal and industrial discharges as provided under 40 CFR 136.1 . When this method is used to analyze unfamiliar ...
... purge and trap gas chroma- tographic ( GC ) method applicable to the de- termination of the compounds listed above in municipal and industrial discharges as provided under 40 CFR 136.1 . When this method is used to analyze unfamiliar ...
Page 324
... Purge and trap system - The purge and trap system consists of three separate pieces of equipment : a purging device , trap , and desorber . Several complete systems are now commercially available . 5.2.1 The purging device must be de ...
... Purge and trap system - The purge and trap system consists of three separate pieces of equipment : a purging device , trap , and desorber . Several complete systems are now commercially available . 5.2.1 The purging device must be de ...
Page 325
... purge and trap system that meets the specifications in Section 5.2 . Condition the trap overnight at 180 ° C by backflushing with an inert gas flow of at least 20 mL / min . Condition the trap for 10 min once daily prior to use . 7.2 ...
... purge and trap system that meets the specifications in Section 5.2 . Condition the trap overnight at 180 ° C by backflushing with an inert gas flow of at least 20 mL / min . Condition the trap for 10 min once daily prior to use . 7.2 ...
Page 326
... purge and trap system to a gas chromatograph . The gas chromato- graph must be operated using temperature and flow rate conditions equivalent to those given in Table 1. Calibrate the purge and trap - gas chromatographic system using ...
... purge and trap system to a gas chromatograph . The gas chromato- graph must be operated using temperature and flow rate conditions equivalent to those given in Table 1. Calibrate the purge and trap - gas chromatographic system using ...
Page 329
... purge gas ( nitrogen or helium ) flow rate to 40 mL / min . Attach the trap inlet to the purging device , and set the purge and trap system to purge ( Figure 3 ) . Open the syringe valve located on the purg- ing device sample ...
... purge gas ( nitrogen or helium ) flow rate to 40 mL / min . Attach the trap inlet to the purging device , and set the purge and trap system to purge ( Figure 3 ) . Open the syringe valve located on the purg- ing device sample ...
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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