涂料中水检测方案(卡氏水分测定)

智能文字提取功能测试中

Data No.LG38-08338 No.EKVJ-08362上海市漕溪路222号航天大厦北楼902室网址： http：//www.kyoto-kem.net.cn KEM Application Note No.EKVJ-08362Volumetric Karl-Fischer Titration Kyoto Electronics Manufacturing Co.， Ltd. Moisture of paint ·Summary- Checked the possibility of measuring moisture of paint with MKA-520， andgoodrepeatability was obtained. -Measuring instrument- Main unit：MKA-520 Volumetric KF moisture titrator Electrode： M-714 Twin platinum electrode -Reagent- Titrant： Composite 5K (f=4.9034mgH2O/mL) Dehydrating solvent： Dehydrating solvent CE -Measurement method- Preparation： (1) Fill the titration vessel with Dehydrating solvent CE. (2) Pre-titrate for dehydration. (3) Determine the factor of titrant. Measurement： (1) Place 5g sample in the titration vessel with the syringe before measuring the moisture inthe sample. -Equation- Moisture(%)： ((DataxF-Driftxt-Blank)/(Wt1-Wt2))x0.1Data ：Volume at EP (mL) Blank ：Blank value (mg)F： Factor of titrant (mg/mL) Wt1 ： Tare including sample weight (g)Drift ： Drift before measurement (ug/min) Wt2 ： Tare including residual weight (g)t ： Measuring time (min) -Standard method- Karl Fischer method -Ambient conditions- Temperature： 24 ℃ R. Humidity： 53% Weather： Fine 京都电子工业株朱会社-可睦电子(上海)商贸有限公司上海市漕溪路222号航天大厦北楼902室电话：021-54488867 电邮： kemu-kem@163. com网址： http：//www.kyoto-kem.net.cn -Measurement parameter- -Printout data- Method 1 Titr Mode 1 Titr Buret No. 2 End Time 30 s Final Vol. 0.01 mL Titr Speed Slow Detector Mode 1 t(stir) 60 s t(wait) 10 s t(max) Os Drift Titr ： On Start ： Manual Max. Volume： 40mL Dose mode：Off Oven ： Off [Calculation] Clac.No. 2 Unit ：% Weight ： \Variable Drift Comp.：Off [Data List Data List Data Samp. Time 30 s： Off Graphic Form Off Method 1 Clac. No. 2 ***Result***Sample No. 01-01 Date 2008/10/0415：48 Wt1 5.6663gWt2 0g Net 5.6663g Blank 0.0 mg Result 0.1389% Bur. No.1 1.605 mL 7.8700 mg Titr. Time 00 ： 03：12 ***Result**** Sample No. 01-02 Date 2008/10/0416：10Wt155.5710g Wt2 0g Net 5.5710g Blank 0.0 mg Result 0.1404% Bur. No.1 1.595 mL 7.8209 mg Titr. Time 00：03：26 ***Result*** Sample No. 01-03 Date 2008/10/0416：15 Wt1 5.3530 gWt2 0g Net 5.3530 g Blank 0.0 mg Result 0.1406% Bur. No.1 1.535 mL 7.5267 mg Titr. Time 00：02：44 -Measurement results- Run Sample size(g) Titer (mL) Moisture(%) 123 5.6663 5.5710 5.3530 1.605 1.595 1.535 0.1389 0.1404 0.1406 Statistics MeanSD RSD 0.1400 %0.0009% 0.6638% .Comments- Use the reagent for ketone because the sample is a paint. ( 京都电子工业株式会社-可睦电子(上海)商贸有限公司 电话：0 2 1-54488867 电邮： ke mu-kem@163. com )