Independent Specialty Gas Producer for Custom Gas & Liquid Calibration Standards

About CSI Gas

CSI Gas, LLC is an independent specialty gas producer of custom gas and liquid calibration standards. We have over 60 years of combined experience serving the needs of the domestic/international petrochemical, chemical, refining, environmental, pipeline, LNG and laboratory clientele.

We deliver complete customer satisfaction through our top-quality specialized products and unmatched customer service while providing cost-effective pricing and lead times.

CSI Gas, LLC has several locations to service your specialty gas needs. With locations in Texas City, TX; Sulphur, LA; Prairieville, LA; and Castle Rock, CO, we ship worldwide and are ready to serve you in any capacity at any time.

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Core Products

We believe in working closely with our customers and go out of our way to address all concerns and questions pertaining to specialty gas mixtures and specialty gas applications. We are committed to understanding all the needs and desires of each customer to deliver the best gas products possible.

CSI Gas will establish an in-house “Portfolio” of all mixtures and requirements for each operation and location.

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Process measurements and analyzer calibrations are key components for bottom-line success in the Industrial gas market. Our proprietary blending and analytical methods are designed to achieve safe, efficient, and consistently reliable standards without compromise. CSI Gas adheres to a multifaceted quality assurance program that embraces industry protocols, satisfies customer requirements, and strives for a high standard of accuracy, purity, and performance with the benefit of on time deliveries

  • Refining
  • PetroChemical
  • Natural Gas Processing
  • Pipeline
  • Testing Laboratories
  • Chemical Processors
  • LNG
  • Environmental Utilites
  • Colleges and Universities


Cylinder Specifications

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Product Specifications

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Typical Analytes

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Contact Us Today For All Your Specialty Gas Needs!

Save time and money with our competitive pricing and lead times. We deliver total customer satisfaction with our high-quality customized gas products and dedicated customer service.