PDF Publication Title:
Text from PDF Page: 022
1 2 3 4 More specific mstructlOns for preservatIOn and samplIng are found With each procedure as detalled m this manual A general discussIOn on samplIng water and mdustnal wastewater may be found m ASTM, Part 31, P 72-82 (1976) Method D-3370 PlastIc (P) or Glass (G) For metals, polyethylene With a polypropylene cap (no Imer) IS preferred Sample preservation should be performed ImmedIately upon sample collection For compositesampleseachalIquotshouldbepreservedatthetimeofcollection Whenuseof an automated sampler makes It ImpOSSIble to preserve each alIquot, then samples may be preserved by mamtammg at 4°C until composItmg and sample splIttmg IS completed When any sample IS to be shIpped by common carner or sent through the United States Malls, It must comply with the Department of Transportation Hazardous Matenals Regulations (49 CFR Part 172) The person offermg such matenal for transportation IS responsIble for enSUrIng such comphance For the preservatIOn reqUIrements of Table 1, the OffIce of Hazardous Matenals, Matenals Transportation Bureau, Department of TransportatIOn has determmed that the Hazardous Matenals Regulations do not apply to the followmg matenals Hydrochlonc aCId (HC1) m water solutions at concentrations of 004%byweIghtorless(pHabout196orgreater),NItncaCId(HN03) III watersolutIOnsat concentrations of 0 15% by weIght or less (pH about 1 62 or greater), Sulfunc aCId (H 2S04) m water solutIOns at concentrations of 035% by weIght or less (pH about 1 15 or greater), SodIUm hydroXIde (NaOH) m water solutIOns at concentrations of 0 080% by weIght or less (pH about 12 30 or less) Samples should be analyzed as soon as pOSSIble after collectIOn The times lIsted are the maXImum times that samples may be held before analySIS and still conSIdered valId Samples may be held for longer penods only If the permittee, or momtonng laboratory, has data on fIle to show that the speCIfIc types of sample under study are stable for the longer time, and has receIved a vanance from the RegIOnal Admimstrator Some samples may not be stable for the maXImum time penod gIven m the table A permittee, or monItormg laboratory, IS oblIgated to hold the sample for a shorter time If knowledge eXIsts to show thIS IS necessary to maIntaIn sample stabIlIty Should only be used III the presence of reSIdual chlonne 5 6 Measurement MBAS NTA Vol Req (ml) ContaIner2 250 P,G 50 P,G Preservanve3,4 Cool, 4°C Cool, 4°C Holdmg TIme5 48 Hrs 24 Hrs TABLE 1 (CONT) XIXPDF Image | Methods for Chemical Analysis of Water and Wastes
PDF Search Title:
Methods for Chemical Analysis of Water and WastesOriginal File Name Searched:
epa600_4_79_020.pdfDIY PDF Search: Google It | Yahoo | Bing
CO2 Organic Rankine Cycle Experimenter Platform The supercritical CO2 phase change system is both a heat pump and organic rankine cycle which can be used for those purposes and as a supercritical extractor for advanced subcritical and supercritical extraction technology. Uses include producing nanoparticles, precious metal CO2 extraction, lithium battery recycling, and other applications... More Info
Heat Pumps CO2 ORC Heat Pump System Platform More Info
CONTACT TEL: 608-238-6001 Email: greg@infinityturbine.com (Standard Web Page)