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润滑油中水分含量检测方案

检测样品 润滑油

检测项目 水分含量

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应用日本京都电子公司(KEM) MKC-520+ADP-513库仑法卡氏水份测定仪连接油类专用水份蒸发器测定润滑油的水份含量 的应用资料实例。

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No.KCA-08001 KEM Application Note No.KCA-08001Coulometric Karl-Fischer titration Kyoto Electronics Manufacturing Co.,Ltd.DataNo.LA47-08130 Moisture of lubricating oil -Summary- Checked the possibility of measuring moisture in lubricating oil by MKC-520 and ADP-513.Consequently, good reproducibility was obtained, but it is considered that measurement wasinfluenced by evaporated component of low boiling point. -Measuring instrument- Main unit:MKC-520 Coulometric KF moisture titratorOption: ADP-513 Evaporator for oil Electrode:M-713 Twin Pt electrode #433-0006Inner burette #433-0006Inner burette -Reagent- Anolyte: Coulomat AG Catholyte: Coulomat CG Carrier gas: Nitrogen -Measurement method- Preparation: (1) Delivered anolyte in titration cell and catholyte in inner burette. (2) Pretitrated for dehydration. (3) Connected MKC-520 and ADP-513, and set the evaporation temperature to 150℃. Measurement: (1) Sample was taken in and measured moisture. -Equation- Moisture(%): ((Data-Drift×t-Blank)/(Wt1-Wt2))×F/10000 Data: Total water content (ug) t : measuring time (s) Wt1: Tare included sample weight (g) Drift: Drift(ug/s) Blank: Blank value (ug) Wt2: Tare included residual weight (g) F=1.00: Factor -Ambient condition- Ambient: 25.3℃ Humidity:61% Weather: Fine 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200072Http://www. shxf17.com -Measurement parameter- -Printout data- Time Unit Total 00:01:00 57.7 57.7 00:02:00 64.6 122.3 00:03:00 61.8 184.1 00:04:00 0.01 ug/s 51.9 236.0 00:05:00 42.0 277.9 00:06:00 31.0 309.0 00:07:00 24.3 333.2 00:08:00 18.6 351.9 00:09:00 15.3 367.2 00:10100 12.3 379.5 00:11:00 10.2 389.7 00:12:00 8.4 398.1 00:13:00 6.9 404.9 00:14:00 5.7 410.6 00:15:00 5.2 415.8 00:16:00 4.4 420.2 00:17:00 3.8 424.0 00118:00 3.6 427.6 00:19:00 3.3 430.9 00:20:00 3.1 434.0 -Measurement results- Sample size (g) Moisture (ug) Conc.(ppm) Statistics First Second Third 0.21980.2292 0.2261 434.0443.1 433.4 1974.51933.2 1916.9 MeanSD RSD 1941.5 ppm29.690 ppm1.5292% -Comment- It is recommended to reduce sample size and exchange reagent moderately to avoidinterfering sample. Http://www. shxf17.com Tel: Fax: 周峰 zhou-fengcom

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