• About Us
  • Air Liquide Group
    American Air Liquide is part of an international group specializing in gases for industry, health and the environment.
  • Careers
    We’re always seeking innovative minds to keep our businesses on the leading edge of their respective fields.
  • Contact Us
    Request a quote, send us your comments and questions, or call us toll-free at 877.715.8651.
  • Locations
    Over 30 locations with our own fleet of trucks
    to serve you with fast delivery.
  • Molecules that Matter
    

    We refine and offer molecules that provide definable value you
    can measure at your
    bottom line.

  • Responsible Care
    

    We’re committed to providing a safe, healthful workplace and to being an environmentally friendly neighbor in the community.

  • Team Scott at Air Liquide
    

    Applied Scott technology is still alive and well—it’s behind every Scott gas mixture we sell.

   

• Products and Services
  • Cylinder Specs and Packaging

    A wide variety of cylinders and sizes
    to meet specific
    customer needs.

  • ALEVIATE

     

    

    
    No-risk guarantee from Air Liquide.

  • ALNET
    

    
    ALNET™ is the distributor network designed for growth.

  • ALPHAGAZ and Other Pure Gases
    

    Several grades of pure gases with low impurity levels for laboratory, process and application-specific applications.

  • DATAL ALert Telemetry Management System

    

    
    Web-based, real-time cylinder gas and liquid management system.

  • Gas Handling Equipment

     

    Gas handling equipment for both specialty and industrial gases.

  • Industrial Gases
    High-accuracy mixtures and low-impurity pure gases in single and multi-cylinder packs.
  • IGAL

    

    
    IGAL™ insulated window filling system significantly reduces rare gas consumption.

  • i-SEE Gas Handling
    

    Improving Safety & Efficiency thru Equipment

  • Process Gases
    Innovative solutions that promote efficiency of your process and help achieve a competitive advantage in your marketplace.
  • Proficiency Testing
    Improve the credibility of your analytical laboratory capabilities. Identify potential analytical problems confidentially. Provide inter- and intracompany quality assurance.
  • Rare Gases
    Global leader in rare pure gases and gas mixtures.
  • Scott Gas Mixtures
    

    Mixtures for virtually any application, the Scott brand has long been the acknowledged world-
    wide standard for analytical accuracy.

  • SCOTTY Transportables
    

    SCOTTY Transportables provide ultra-pure and high-accuracy calibration gases in a wide variety of nonreturnable cylinder sizes and volumes.

  • SCOUT Cylinder Tracking
    

    
    The engine behind SHOP@airliquide, providing real-time, accurate cylinder inventory, delivery and location information.

  • SHOP@airliquide
    

    Reduce your purchasing costs, simplify your records keeping, minimize your on-site cylinder inventory and much more…

  • TurbinAL Continuous CO2 Delivery

    Continuous high-flow CO2 purge system for gas-fired turbine generators.

   

• Industry Offerings
  • Engine Emissions Testing
    A complete line of pure and mixed gases for measuring engine emissions from various sources.
  • Environmental Compliance
    Seven distinct product classes from the world’s foremost authority and supplier of environmental calibration mixtures.
  • Food and Beverage
    ALIGAL gases for Modified Atmosphere Packaging (MAP).
  • Homeland Security
    Over 40 standard Scott™ TIC mixtures and CWA simulants,
    with custom products
    our specialty.
    
  • Insulated Glass
    IGAL™ insulated window filling system significantly reduces rare gas consumption.
  • Laboratory Mixtures
    ALPHAGAZ MIX™ are
    gas mixtures engineered specifically for most commonly used analytical techniques.
  • Lighting Gases
    Rare gases used for lighting applications.
  • Natural Gas
    The most accurate standards available, these gas mixtures are ideal for custody transfer and other applications.
  • Oil and Gas
    We stock over 800 components for blending mixtures used for refining and petrochemical applications.
  • Pharmaceutical and Biotech
    PHARGALIS permits innovative customization without jeapordizing strict regulatory compliance.
  • Welding, Laser and Cutting
    Air Liquide gases deliver optimum performance for root shielding, plasma cutting, and arc welding.

   

• Proficiency Testing
  • Request More Information

   

• Technical Resources
  • Conversion Factors
    Units of measure and other related information.
  • Cylinder Specs and Packaging

    A wide variety of cylinders and sizes
    to meet specific
    customer needs.

  • Emergency Response
    

    Get help in the event of a gas emergency.

  • FAQs
    Answers to the
    questions we hear
    most often.
  • Glossary
    Terms and definitions commonly used in the industry.
  • ISO/IEC Accreditation
    What does it really mean to be duly certified and accredited?
  • MSDS
    Material Safety Data Sheets for products we sell.
  • Product Literature
    

    Downloadable with descriptions, features, benefits and technical information.

  • Regulator Selection and Maintenance
  • Sales Terms
    The where-as and
    where-for info, so
    there is no mistake.
  • Solutions Center
    Ask a question, get a quote, and more.
  • Specialty Gas Catalog
    

    The industry's most definitive reference guide for specialty gases and gas handling equipment.

  • Tech and Safety Data
    Do it right and do it safely with this information.

   

• Call Center
  • Contact Us
    Request a quote, send us your comments and questions, or call us toll-free at 877.715.8651.
  • Requst for Quote
  • Technical Resources
    All the specialty and industrial gas product, technical and safety information you need.

   

• News and Events
  • Press Room
    What’s new at Air Liquide— new product announcements, articles, white papers and more.
  • Blog
    Get the latest thoughts on specialty gases, industrial gases and gas handling equipment... and then some.
  • Trade Shows
    View our schedule of industry conference
    and trade show exhibits
    for 2011.
  • Webinars

    Register for upcoming webinars about specialty and industrial gases, and review recordings of past webinars too.

   

• Contact Us
  • Contact Us
    Request a quote, send us your comments and questions, or call us toll-free at 877.715.8651.
  • Request for Quote
  • Locations
    Over 30 locations with our own fleet of trucks
    to serve you with fast delivery.

   

• Home
   

Environmental Compliance

72.2 Certified ZAM Air and Nitrogen Engineered to meet 40 CFR Part 72.2 requirements for Acid Rain CEMS reporting.

2009 Catalog Ad for Pollution Engineering Destined to become a classic, Air Liquide’s 2009 specialty gas catalog is the Cadillac of catalogs.

Acrolein Calibration Standards Scott™ Acrolein Calibration Standards are engineered and manufactured for reliable and accurate instrument calibration in all air toxics monitoring applications.

Emissions Credit Class Gold Standard EPA Protocols Eliminate CEM calibration error and save on NO and SO2 emissions allowances.

Enhanced Vapor Recovery Systems: Hydrocarbon Sensor Verification Program for Gasoline The California Air Resources Board mandates periodic testing of hydrocarbon sensors used in enhanced gasoline vapor recovery systems.

Enhanced Vapor Recovery Systems: Testing Vapor Polishing Systems for Gasoline The California Air Resources Board mandates periodic testing of vapor polishing systems for gasoline.

EPA PGVP Everything you always wanted to know about EPA’s new Protocol Gas Verification Program.

EPA PGVP Registered Sites for Air Liquide All Air Liquide America Specialty Gases EPA protocol production sites are registered participants in the U.S. EPA Protocol Gas Verification Program (PGVP) for stationary source monitoring and ambient air monitoring.

EPA Protocol Gases Ensure regulatory compliance with Scott EPA Protocol Gases from Air Liquide.

Give Snowballs a Chance in Yellowstone National Park Ad This ad first appeared in the January 2010 issue of Pollution Engineering... highlighting accurate Scott gas mixtures and EPA protocols used in emissions measurements.

How to Pick a Protocol Choose a supplier with a reputation for producing high-quality products.

MACT Hap Chart from Air Liquide Available compounds for hazardous air pollutants (HAPs) and toxic industrial chemicals (TICs) from Air Liquide.

Method TO Calibration Standards Air Liquide’s technical expertise in engineering Scott Method 14A/15/17, HAPS and TIC calibration standards, sulfur mixtures and vapor intrusion products meets virtually all challenging requirements.

Molecules that Matter: Air Liquide Tech Profile From the January 2009 issue of Pollution Engineering.

Pollution Engineering: Air Liquide Corporate Profile This profile first appeared in the July 2011 issue of Pollution Engineering and highlighted the proper selection of EPA protocol gases, the EPA PGVP and much more.

Rock Out your RATA Ad First appearing in the June 2010 issue of Pollution Engineering, this ad describes how you can add money to your bottom line AND earn MORE trade credits using Scott Rata Class EPA Protocols from Air Liquide.

Scottabe Scott Brand Ad for EPA Protocol Gases and other Environmental Compliance Gas Mixtures First appearing in the January 2011 issue of Pollution Engineering, this ad highlights key features of Scott brand EPA Protocol Gases and other environmental gas mixtures from Air Liquide.

TITLE V Ammonia Calibration Standards Scott TITLE V Ammonia Standards are the only dual-analyzed calibration standards that meet EPA specifications for monitoring ammonia slip.

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• General
  • 2009 Specialty Gas Catalog
• Automotive and Engine Emissions Testing
• Customer Testimonials
• Environmental Compliance
• Gas Handling Equipment
• Homeland Security
• Industrial Gases
• Laboratory and Pure Gases
• Natural Gas
• Oil and Gas
• Rare Gases
• Scott Gas Mixtures
• SCOTTY Transportables