Aquamax KF PRO LPG – ppm water in LPG and Gases according to ASTM D7995-19


The Aquamax KF PRO LPG includes all features required for ppm level water in LPG and Gas including, the sulphur removal cartridge eliminating all side reactions and our sample loop principle allowing you to fully automate the measurements, up to 125 per day!

All Aquamax KF PRO LPG parts are totally enclosed making this system completely safe and robust for use in the demanding petroleum industry. The unique ECH sample loop allows you to use the instrument in your laboratory with full automation, as a portable/field use analyzer or can be integrated in to your process as an on-line system.


• propane, propene, butane, butene, butadiene
• ethylene oxide
• chlorinated hydrocarbons, e. g. methylene chloride ,ethylene chloride, vinyl chloride

Analysis of refrigerants:
• halogenated hydrocarbons
Analysis of permanent gases:
• natural gas
• technical gases
• mixtures of test gases


Features and Results

• Determination of moisture in liquefied and gaseous samples up to 200 bar/2900 psi
• Determination of pressure in the sample loop
• Automatic pressure regulation
• Transfer line with direct injection
• Automatic rinsing bypass and steps for rinsing
• Measuring cell without diaphragm (only one electrolyte required)
• Setting of application-specific methods
• Avoiding of side reactions by sulphur trap
• Type of result: μg, ppm (gas volume), Vppm, Mppm, Mol ppm by using the formula generator


• Sulfur removal cartridge eliminating all side reactions
• No interference calculation required
• 250 measurements can be performed in 48 hours
• Totally automated process, no operator input required for the test
• Suitable to test all gas types without any calibration or adjustments
• No separate rinsing gas is required
• Rinsing process is fully automated
• No balance is required
• High sample throughput and long reagent life
• Compact device


Example of a measurement series with sulphur trapoils

Example for multi-injection of the sample: one-step and two-step dosing process in comparison


Measurement method: Coulometric Karl Fischer titration
Sample: Pressurized gas sample (LNG, LPG)
Sample cylinder: 0.5 liter pressurized bottle or
directly from the gas line
Pressure reducer: internal (with heating element)
Sample loop: 500 mL (gas)
Rinsing and dosing: 0 … 15 steps for each, adjustable
Measuring range: 1 … 10000 ppm
Resolution: 0.1 ppm
Detection limit: 1 ppm
Dimensions: 33 x 49 x 48 cm (W x D x H)
Weight: 17 kg