应用日本京都电子公司(KEM) MKA-520卡尔费休容量法水分仪测定涂料中水分含量 的应用资料实例。
Kyoto Electronics Manufacturing Co., Ltd.Data No.LG38-08338 No.EKVJ-08362 KEM Application Note No.EKVJ-08362Volumetric Karl-Fischer Titration 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=4.9034mgH20/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 Http://www. shxf17.com -Measurement parameter- -Printout data- Titration] 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) 10s t(max) 0 s 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 Samp. Time 30 s Data List : Off Graphic Form Off Method Clac. No. 12 ***Result***Sample No. 01-01 Date 2008/10/04 15:48 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 2008/10/04 16:10 Wt1 5.5710gWt2 0g Net 5.5710 g 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 2008/10/04 16:15 Wt1 5.3530 gWt2 0g Net 5.3530 g Blank 0.0 mg Result 0.1406% Bur. No.1 1.535mL 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 Mean 0.1400% SD 0.0009% RSD 0.6638% ·Comments- Use the reagent for ketone because the sample is a paint. Http://www.shxf17.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
![](https://img1.17img.cn/17img/images/202211/pic/0982fa71-576f-450f-a8c1-752607c8d926.jpg)
还剩1页未读,是否继续阅读?
上海旭风科学仪器有限公司为您提供《容量法卡尔费休水分仪MKA-520测定涂料中水分含量En》,该方案主要用于涂料中--检测,参考标准--,《容量法卡尔费休水分仪MKA-520测定涂料中水分含量En》用到的仪器有