生物柴油中密度En检测方案

KMApplication Note NDAA-07033 Petroleum Density of Bio Diesel Fuel(BDF) Density measurement by Density/Specific Gravity Meter Standard JIS K 0061 1.Abstract This application note exemplifies a measurement of density of bio diesel fuel using adensity/specific gravity meter made by Kyoto Electronics (KEM). 2.Reference 1))JIS K 0061-2001 Method for Density and Specific Gravity Measurement ofChemical Products 3.Cautions in measurement 1)Use a fresh desiccant (silica gel). If its color is reddish， change it with new one(blue). 2)Before sample measurement， perform factor calibration with dry air and purewater. Http：//www. shxf17. com 4.Post-measurement care Drain out residue inside the cell. Rinse well the measuring cell with solvent， and dryit completely. 5.Test equipment Main unit ： Density/specific gravity meter 6.Reagent Rinse solvent (clean/ dry)： Ethanol (SOLMIX) 7.Measurement procedure -Pretreatment一 )Set the temperature of density meter to 15°C， and leave it until stabilized.2 Calibrate the meter with dry air and pure water. 一Measurement- 1S)ample the test liquid using sampling pump. Use caution not to produce airbubbles in the cell. 2Start measurement.3)After measurement， clean the cell with solvent， and dry it. 9.Example of measurement 一Ambient condition- Room temperature ： 24℃ Humidity： 62% Weather ：Cloudy Measurement ParameterTemperature ：15.00℃Stability ：0 Limit Time ： 600 s Sequence ：Off Calib. ： Air&Water lCalculation Parameter Density ：d Result ：d Temp.Comp. ：Off ***Result *** Sample No. 01-01 Date 2007/06/13 14：31 Method No. ： 1 Method Name ： Method-1 Meas.Temp. ：15.00℃ Period T ：1077464 alg/cm3 ：0.88754 Meas.Time ：00：03：30 Meaning of printout data： Meaning of printout data： 《Measurement Parameter>Temperature： of measurement / Stability： level of stability of measurementLimit Time： of measurement / Sequence： built-in sequence /Calib.： calibration liquidDensity： selection of density or specific gravity / Result selection of measurement resultTemp.Comp.： setting temperature compensation Http：//www.shxf17. com -Measurement results- N Frequency Density(g/cm) 1234 5 1077464 10774631077463 1077463 1077463 0.88754 0.887530.887530.88753 0.88753 Statistics MeanDifference 0.88753 g/cm30.00001 g/cm *： The above data are the results of 5 tests of the same sample. *Red underline shows the data from page 3/4. 10.Summary Bio diesel fuel (BDF) is obtained by refining dehydrated (heated) waste cooking oils，however， trace amount of water may be blended. Sample measurement this time shows a good repeatability with 0.00001g/cmmaximum difference. Reliable measurement of density is assured using a density/specific gravity meter.Density of bio diesel fuel can be precisely measured by any of the following modelsmade by Kyoto Electronics (KEM). 【DA-510】【DA-505】【DA-500】 ·High end model · Built-in thermal control·Measure temp.：4~70℃ · Built-in thermal control · Built-in thermal control· Viscosity compensation。Measure temp.：4~70℃ 。Accuracy：±0.00002 g/cm' · Viscosity compensation· Measure temp.：4~90℃·Accuracy：±0.00005g/cm³ · Built-in thermal controlMeasure temp.：4~90℃·Accuracy：±0.0001 g/cm · Accuracy：±0.00002 g/cm KM KYOTO ELECTRONICS MANUFACTURING CO.，LTD. Overseas Division：Yamawaki Bldg 9F，4-8-21 Kudan-minami，Chiyoda-ku Tokyo 102-0074 JAPAN Phone：+81-3-3239-7333， Fax： +81-3-3237-0537 Head Office： 56-2 Ninodan-cho，Shinden，Kisshoin，Minami-ku， Kyoto 601-8317 JAPAN Phone：+81-75-691-4122， Fax：+81-75-691-9961 URL： http：//www.kyoto-kem.com 上海旭风科学仪器有限公司 上海市闸北区万荣路388弄17号904室 20007 2 Http：//www.shxf17.com Tel： 021-66581985，63172460 Fax： 021-66581986 周峰13916388882 zhou-feng1027@163.com 上海旭风科学仪器有限公司 上海市闸北区荣路 el： Fax： 周峰 zhou-fengcom