A new analytical procedure for water content in LPG


ECH Elektrochemie Halle GmbH

Date: 14:00:00 - Oct 02 2019
Speakers: Karl Robertson, Dr. Michael Hahn, Dorit Wilke
Moderators: Tom Lynch CChem FRSC

ppm water content in LPG and all gas mixtures can now be accurately determined by coulometric Karl Fischer titration. 
The latest eLearning session presented by ECH Elektrochemie Halle explains in detail how this new ASTM procedure allows you to test ppm water in your laboratory and directly at the sample point.  
The first question is, why is the water content of LPG and gas so important?
Substances with corrosive promoting properties have to be monitored and kept to a minimum. Water is one of the most corrosion promoting substances found in LPG and gas. 

Mr Karl Robertson, Dr Michael Hahn and Dr Dorit Wilke describe a new analytical procedure, which has now been incorporated into a new ASTM method for water content in LPG by coulometric Karl Fischer titration. The ECH procedure simply removes interferences caused by mercaptans and H2S enabling accurate determination of water content in LPG and all gas types down to 1ppm.

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Karl Robertson
Karl Robertson (ECH Elektrochemie Halle GmbH)

Karl has been working in the field of petroleum, power grid and environmental testing for more than 20 years, having vast experience in the development of titration and electro chemistry products used in these fields.

Dr. Michael Hahn
Dr. Michael Hahn (ECH Elektrochemie Halle GmbH)

Michael has over 30 years of experience in the field of analysis. He holds a degree in chemistry and received his doctorate from Martin Luther University in Halle in 1991. Since then he has been very successful in the development of analytical measuring technology, the field of activity of ECH Elektrochemie Halle GmbH. In 1992 he was one of the three founders of this company. He successfully manages the company as sole managing director. He offers extensive experience, especially for interdisciplinary development and the creative linking of the various work areas. This concerns both the application possibilities and the technical implementation possibilities.

Dorit Wilke
Dorit Wilke (ECH Elektrochemie Halle GmbH)

Dorit is a proven scientist in the field of instrumental analysis. She has been working for ECH Elektrochemie GmbH for 20 years. Dorit holds a doctorate in chemistry and specializes in analytics, sensor technology and in method development, especially. She is chairwoman of the DIN Working Group NA 119-01-03-01-26 AK Working Group "Easily Releasable Sulphide" and thus in charge of the development of the national and international standard for the determination of hydrogen sulphide in water.


Tom Lynch CChem FRSC
Tom Lynch CChem FRSC (International Labmate Ltd)

Tom has 35 years of experience in the petroleum industry, specialising in the delivery of forensic and problem solving /method development capabilities for BP Fuels and Lubricants businesses globally. He was also a member of the BP Science Council representing Analytical Science and led a BP wide Analytical Science network. Tom has published over 30 citable papers, 4 book chapters and has given over 60 presentations at conferences. He is a past Vice President of the Royal Society of Chemistry (RSC) Analytical Division and a past Chairman of the RSC Separation Science Group. In addition, Tom is a recipient of the Silver Jubilee Medal by the Chromatographic Society and a technical achievement award by the Energy Institute.

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