PDF Publication Title:
Text from PDF Page: 029
MI of Standard SolutIon DIluted to 50 0 rol Color In wIth DIstIlled Water ChloroplatInate Umts 00 o 05 5 10 10 15 15 20 20 25 25 30 30 35 35 40 40 45 45 50 50 60 60 70 70 7.2 Protect these standards agamst evaporation and contammatlon by use of clean, mert stoppers NOTE 2: The standards also must be protected agamst the absorption of ammoma smce an mcrease m color wdl result 8. Procedure 81 Apparent color Observe the color of the sample by filhng a matched Nessler tube to the 50 ml mark With the water and compare With standards ThiS companson IS made by lookmg vertically downward through the tubes toward a white or specular surface placed atsuchananglethathghtISreflectedupwardthroughthecolumnsofhqUld Ifturbidity has not been removed by the procedure glVen In (82), report the color as "appalent color" If the color exceeds 70 umts, ddute the sample With dlstl1led water m known proportions untl1 the color IS wlthm the range ofthe standards 8.2 True color Remove turbidity by centnfugmg the sample untd the supernatant IS clear The tlme reqUIred w111 depend upon the nature ofthe sample, the speed ofthe motor, and the ramus of the centnfuge, but rarely WIll more than one hour be necessary Compare the centnfuged sample WIth dIstl1led water to msure that turbIdIty has been removed If the sample IS clear, then compare WIth standards as gIven m (8 1) 9. Calculation 9.1 Calculate the color umts by means ofthe followmg equatIon Colorumts= AX50 V where A = estimatedcolorofdl1utedsample V = ml sample taken for dl1utlOn 1102-2PDF 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 | RSS | AMP |