Mustang® Composite Sampling System

The Mustang Composite Sampling System (MCSS®) is an intermittent, waterless sampling system for liquefied natural gas which is compliant with the requirements of ISO 8943 (International Organization for Standardization, Sampling of Liquefied Natural Gas, Continuous and Intermittent Methods). The system accumulates a representative sample by capturing small samples at regular intervals, either fixed or proportional to flow rate.

The sampling process is a cycle which begins with evacuating the tubing and sample cylinders throughout the system. As sampling commences, small fixed volumes of gas are captured and pumped into the accumulator. These volumes are adjustable in both size and sample frequency. Once the sampling process is complete, the accumulated volume’s composition is representative of the entire process cycle. The gas within the accumulator can be transferred into the gas sample cylinders. Additional spot samples may be obtained at any point throughout the process. The cycle can be repeated by replacing the sample cylinders and beginning the evacuation process.


  • Temperature controlled enclosure
  • SoftView® Composite HMI Software for remote control
  • Quick Disconnect Cylinders
  • ISO 8943 Compliant
  • Vacuum Pump Purge
  • Compact Design
  • Adjustable Sample Size
  • NEMA 4X Enclosure


  • Familiar, PC based MMI with remote capability
  • Fast & easy sample cylinder retrieval
  • Does not require building
  • Suitable for custody transfer
  • Small footprint
  • Configurable composite sample volumes


Maximum allowable working pressure 800 psig (55 bar)
Proportional temperature control range 0ºF-280ºF (-18ºC-138ºC)
Adjustable Spot Sample Volume 0.5 to 3 cc every 2 seconds
Vacuum Purge Less than 1 psia
Electrical classifications Class 1, Division 1 & 2, Groups C, D, T3
(CE Ex II 2 G Ex d II B T3 Gb Zones 1 & 2)
Port sizes 1/4” female NPT
Conduit connection 3/4” female NPT
Wetted materials Machined parts: 316 stainless steel/NACE compliant
All other metal parts: stainless steel/NACE compliant; (other materials available upon request)
Input Supply Voltage 115 VAC, 790 Watts, 50/60 Hz, ± 10%
208 VAC, 790 Watts, 50/60 Hz, ± 10%
230 VAC, 790 Watts, 50/60 Hz, ± 10%
Evacuation Options (Vacuum Purge Pump) Vacuum Purge Pump (Standard Design)
Venturi Vacuum Pump (N2 supply required)