1 PPM can be detected by titrator with lower cost than any other te Determination of mercaptan sulfur and hydrogen sulfide in fuels and liquid

petroleum gases (LPG) is one of the important applications in the latest petroleum/gas analysis. According to international standard methods, 1 ppm level as minimum

detection level can be confirmed with titration method.

• ASTM D3227 Standard Test Method for (Thiel Mercaptan) Sulfur in Gasoline, Kerosine, Aviation Turbine, and Distillate Fuels (Potentiometric Method)

• UOP 163 Hydrogen Sulfide and Mercaptan Sulfur in Liquid Hydrocarbons • IP 272 Determination of mercaptan sulfur and hydrogen sulfide content of liquefied

petroleum gases (LPG)

• Preset parameter • Less investment • Special sealing cell & Special coating silver electrode • Easy operation and maintenance • Quick measurement

The system makes the application successful with KEM special sealing cell and electrodes to avoid oxidization of mercaptan sulfer under atmosphere.

• AT -700 automatic potentiometric titrator • Special sealing cell • Special coating silver electrode • Standard substance

www.kyoto-kem.com

AT -700 Automatic potentiometric titrator • Compact Design (W= 141mm) • USB Interface • Electronic record of measurement result & method • Software for method set-up • Method set-up with the software installed PC • Transfer of set-up method to memory of a main unit • Choice of 1 or 2 built-in burette

mV

EP2

• First end point (EP1) is hydrogen sulfide and second (EP2) is mercaptan sulfur.

• In case of IP272, it is necessary to be followed a procedure and apparatus described in ASTM D 1265.

• A lead acetate paper is recommended to check if hydrogen sulfide is present before titration.

Method 11: Sample testing (2 EP points) with 0.01 moi/L AgN03

Method 12: Sample testing (2 EP points) with 0.001moi/L AgN03 Method 13: Sample testing (1 EP points) with 0.01 moi/L AgN03 Method 14: Sample testing (1 EP points) with 0.001 moi/L AgN03 Method 15: Blank tiration Method 16: Coating of silver electrode with AgN03 Method 17: Silver nitrate standardization for 0.01 Moi/L AgN03 Method 18: Silver nitrate standardization for 0.001 Moi!L AgN03 Method 19: Verification with standard substance

Range

Titration Mode

Method Number

Kinds of Titration

Display

Olsplay Content

Data Memory

Option

Environment

•Potential: -2000mV -+2000mV •pH: -20.00-20.00pH •Temperature: 0-100°C

Auto/ Auto Intermit/Intermit/ Stat

20

Aeid-basel Red())(/ Precipitation/ Photometr"ic/ Polarization/ Conductivity

20 characters 6 lines LCD with backlight

Potential/ Titration amount/ Measurement result/ Parameter

50 samples

Automatic burette/ CHA-700

•Temperature: 5-35°C •Humidity: Below 85%RH

京都电子工业株式会社-中国分公司 可睦电子(上海)商贸有限公司 上海徐汇区中山西路2366弄1号203室 TEL: 021-54488867 E-mail: kemu-kem@163.com http://www.kem-china.com