车用尿素溶液中密度测定检测方案(密度计)

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京都電子工業株式会社KYOTO ELECTRONICSMANUFACTURING CO.，LTD.APDA-0145en APDA-0145er Application Note Density of AdBlueR Industry ChemicalsInstrument Density / specific gravity meterMeasurement method Resonant frequency oscillationStandards GB 29518， ISO 22241， JIS K2247 1. Scope Density of AdBlue@ was determined based on“ISO 22241 Diesel engines -NOx reductionagent AUS 32 -. 2.Precautions 1) Use sufficiently dried desiccant. 2) Perform a calibration with dry air and pure water before measurement. 3. Post-measurement procedure 1) Drain a sample in the measuring cell and wash it with pure water. Then rinse the cell withethanol and dry it sufficiently. 4. Apparatus Main unit Density / specific gravity meter 5.Reagents Rinse liquid (for washing) Pure water Rinse liquid (for drying) Ethanol 6. Procedure -Preparation- 1) Set the measuring temperature of the main unit to 20°℃， and wait until it is stabilized. 2) Perform a calibration with dry air and pure water. -Measurement- 1) Introduce a sample into the measuring cell without letting air bubbles enter into the cell. 2) Start a measurement. 3) After a measurement， wash the cell with pure water and ethanol， and dry it. 上海市徐汇区宜山路333号1201室网址： http：//www.kem-china.com 7.Example -Parameter- (This parameter is an example of our refractometer. For other models， parameter items may be different or other itemsmay be added.) -Measurement results- Table 1 Measurement results of sample (g/cm) 1.0905 2 1.0905 Mean 1.0905 Repeatability* 0.0000 *Repeatability means the difference of the two results. 8. Summarv As the measurement results ofdensity of AdBlueR， the repeatability was within thelimits (ISO 3675 ： 0.0005， ISO 12185 ：0.0002) specified by the standards， and theresults satisfied the quality requirement (within 1.0870 -1.0930 g/cm²). When actually measuring， please refer to the latest standards. 9.References 1) ISO 22241：2006(E)IDiesel engines-NOx reduction agent AUS 32- 2) JIS K2247：2009Diesel engines-NOx reduction agent AUS 32- 京都电子工业株式会社-可睦电子(上海)商贸有限公司电话：021-54488867 电邮：kemu-kem@163.com 上海市徐汇区宜山路333号1201室网址： http：//www.kem-china.com 都電子工業株式会社KYOTO ELECTRONICSMANUFACTURING CO.，LTD. 车用尿素溶液密度的测定 应用资料(英文版)根据GB 29518-2013 柴油发动机氮氧化物还原剂 尿素水溶液(AUS 32)和ISO 22241-2，使用U形振动管法数字式密度计测量尿素水溶液的应