PDF Publication Title:
Text from PDF Page: 458
OIL AND GREASE, TOT AL RECOVERABLE Method 413.2 (Spectrophotometric, Infrared) STORET NO. 00560 1 Scope and ApplIcatIOn 11 Th1s method mc1udes the measurement of fluorocarbon-l 13 extractable matter from surface and salIne wdters, mdustnal and domestic wastes It 1S applIcable to the determmatIOn of hydrocarbons, vegetable ol1s, ammal fats, waxes, soaps, greases and related matter 12 The method 1S applIcable to measurement of most lIght petroleum fuels, although loss of about half of any gasohne present dunng the extractIOn mampulatIOns can be expected 13 The method covers the range from 0 2 to 1000 mg/l ofextractable matenal 14 Wh1le th1s method can be used to obtam an estimate of the 011 and grease that would be measured grav1metncally, m many cases the est1mate more accurately descnbes the parameter, as 1t w111 measure volatiles more effectively and 1S not suscept1ble to mterferences such as extractable sulfur It can be used w1th the Petroleum Hydrocarbon procedure to obtam an 011 and grease value and a petroleum hydrocarbon value on the same sample 2 Summary of Method 2 1 The sample 1S aC1d1fied to a low pH ( < 2) and extracted w1th fluorocarbon-l 13 The 011 and grease 1S determmed by companson of the mfrared absorbance of the sample extract w1th standards 3 DefimtIOns 3 1 The defimtIOn of 011 and grease 1S based on the procedure used The source of the oil and/or grease, and the presence ofextractable non-OIly matter w111 mfluence the matenal measured and mterpretatIOn ofresults 4 SamplIng dnd Storage 4 1 4 2 A representative sample of 1 hter volume should be collected m a glass bottle I f analys1s 1S to be delayed for more than a few hours, the sample 1S preserved by the add1tIOn of 5 ml HCl (6 1) at the time ofcollectIOn and refngerated at 4°C Because losses of grease w111 occur on samphng eqUlpment, the collectIOn of a compos1te sample 1S 1mpractiCal Ind1v1dual portIOns collected at prescnbed time mtervals must be analyzed separately to obtam the average concentratlOn over an extended penod 5 Apparatus 5 1 52 5 3 5 4 Separatory funnel, 2000 ml, w1th Teflon stopcock Infrared spectrophotometer, scannmg Non-scannmg mstruments may also be used but can be subject to pos1tive mterferences 1n complex chem1cal wastewaters Cells, 10 mm, 50 mm, and 100 mm path length, sodmm chlonde or mfrared grade glass Filter paper, Whatman No 40, 11 cm Issued 1974 Ed1tonal reV1S10n 1978 413 2-1PDF 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)