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生物柴油中密度En检测方案

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应用日本京都电子公司(KEM) DA-510数字式密度仪_测定生物柴油的密度 的应用资料实例。This application note exemplifies a measurement of density of bio diesel fuel using a density/specific gravity meter made by Kyoto Electronics (KEM). 全数字自动液体密度计型号升级,功能更新   特别说明:   自2009年11月起,京都电子工业株式会社(KEM)生产的自动液体密度计推出最新型号,“DA-6xx”系列型号数字式密度计。此振动式密度比重计可直接测量液体的密度、比重及浓度。在样品温度稳定的状态下,测量时间最短为20秒左右。较原来产品“DA-500”系列缩短了约40%(采用粘度修正功能时间缩短约35%)。除了润滑油、燃料油等原油及石油产品之外,还主要面向药物、食品、及饮料的质量管理等。   “DA-600”系列的数字式密度计,包括测量密度准确度为±0.00002g/cm3的“DA-650”,准确度为±0.00005g/cm3的“DA-645”,以及准确度为±0.0001g/cm3的“DA-640”。3款产品的测量范围均为0~3g/cm3,测试的温度控制范围均为0~90°C。   “DA-600”系列的数字式密度计通过改进测量传感器的结构,提高了测量精度的稳定性。与原来相比,周围温度所造成的影响可减小一半,因此即使在温度变化较大的环境下,也可稳定测量。另外,采用无缝拼接结构,可使样品均匀流动,通过内置进样泵取样、清洗和干燥,降低操作的危险性和防止进样时的气泡产生。   为了提高操作性,“DA-600”系列的数字式密度计采用了5.7英寸的TFT液晶显示器及触摸屏。配备有LAN、USB及RS-232C接口,可向外部输出,也可在U盘内存储数据。可设定密码及权限。能保存校正记录及检查记录等数据,还具有通知检查日期等功能。   原“DA-500”系列自动液体密度计将逐步停产,并过渡为新的“DA-6xx”系列型号数字式密度计,   同时,日本京都电子工业株式会社(KEM)同系列自动液体密度计。原“DA-100”数字式密度计/比重计,和“DA-130N”便携式密度计/比重计,型号不变,继续提供。   上海旭风感谢您长期对我们的信任与支持,我们将一如既往给大家提供优质的产品和完善的售后服务!

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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

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