• Pure Gases
    • Introduction
    • Acetylene
    • Air
    • Ammonia
    • Argon
    • Boron Trichloride
    • Boron Trifluoride
    • 1,3-Butadiene
    • n-Butane
    • 1-Butene
    • 2-Butenes
    • 2-Butene (cis)
    • 2-Butene (trans)
    • Carbon Dioxide
    • Carbon Monoxide
    • Chlorine
    • Dimethylamine
    • Ethane
    • Ethyl Chloride
    • Ethylene
    • Halocarbon-14
    • Halocarbon-23
    • Halocarbon-116
    • Halocarbon-218
    • Halocarbon-C318
    • Halocarbon-1216
    • Helium
    • Hydrogen
    • Hydrogen Chloride
    • Hydrogen Sulfide
    • Isobutane
    • Isobutylene
    • Krypton
    • Methane
    • Methyl Chloride
    • Methylamine
    • Neon
    • Nitric Oxide
    • Nitrogen
    • Nitrogen Trifluoride
    • Nitrous Oxide
    • Oxygen
    • Propane
    • Propylene
    • Sulfur Dioxide
    • Sulfur Hexafluoride
    • Trimethylamine
    • Xenon
  • Gas Mixtures Two Components
    • Introduction
    • Ammonia
    • Argon
    • Benzene
    • n-Butane
    • Carbon Dioxide
    • Carbon Monoxide
    • Chlorine
    • Ethane
    • Ethylene Oxide
    • Fluorine Mixtures
    • Helium
    • Hexane
    • Hydrogen
    • Hydrogen Chloride
    • Hydrogen Sulfide
    • Isobutane
    • Methane
    • Nitric Oxide
    • Nitrogen
    • Nitrogen Dioxide
    • Nitrous Oxide
    • Oxygen
    • Propane
    • Propylene
    • Silane
    • Sulfur Dioxide
    • Sulfur Hexafluoride
    • Toluene
    • Vinyl Chloride
    • Equipment Recommendations
  • Special Applications
    • Flame Ionization
    • Electron Capture
    • Leak Detection
    • Nuclear Counter
    • Environmental Monitoring
    • EPA Instrumental Test Methods
    • EPA Protocols and Traceability Standards
    • CEM Daily Calibration Standards
    • Non-EPA Protocol Calibration Gases
    • Certification Periods
    • Certificates of Analysis
    • Air Toxics Monitoring
    • Mobile Emissions Monitoring
    • Airgas® LaserPlus Gases
    • Refrigerant Gases
    • Process Chemical
    • Hydrocarbon Processing Gases
    • Portable Cylinders
  • Portable Calibration Gases
    • Portable Calibration Gases and Carrying Case
  • Safety Equipment
    • Hand Protection
    • Protective Clothing
    • Eye Protection
    • Hearing Protection
    • Head and Face Protection
    • Respiratory Protection
    • First Aid
    • Skin Care
    • Eye/Face Wash
    • Biohazard
    • Spill Control and Containment
    • Matting
    • Safety Cans
    • Flammable Storage
    • Fire Extinguishers
    • Signs and Labels
  • Specialty Gas Equipment
    • Pressure Regulators
      • Regulators Selection, Installations & Operations
      • Analytic Series
        • General Purpose Line
        • General Purpose Single Stage
        • General Purpose Two Stage
        • Analytical Line
        • Analytical Single Stage
        • Analytical Two Stage
        • High Purity Brass Single Stage
        • High Purity Brass Two Stage
        • Stainless Steel Line
        • Stainless Steel Single Stage
        • Stainless Steel Two Stage
        • Economy Auto Change Over Manifold
      • General Purpose
        • General Purpose Line Regulator
        • General Purpose 1 stage Regulator
        • General Purpose 2 stage Regulator
      • Analytical
        • Analytical Line Regulator
        • Analytical 1 stage Regulator
        • Analytical 2 stage Regulator
        • Analytical Point of Use Regulator
        • Analytical Corrosive Environment 2 stage Regulator
        • Analytical Dewar Regulator
        • Analytical Tee Purge
      • Flowmeter Regulator
        • Single Stage
        • Two Stage
      • High Purity Brass
        • Brass High Purity 1 stage
        • Brass High Purity 2 stage
      • Ultra High Purity Brass
        • Ultra High Purity Brass 1 stage Regulator
        • Ultra High Purity Brass 2 stage Regulator
      • High Purity Stainless Steel
        • Stainless Steel Line Regulator (Threadless Seat)
        • Stainless Steel 1 stage Regulator (Threadless Seat)
        • Stainless Steel 2 stage Regulator (Threadless Seat)
        • Stainless Steel Positive Seal
        • Stainless Steel 2 stage Regulator (Threaded Seat)
        • Absolute Regulator
      • Ultra High Purity Stainless Steel
        • Model 213/215 Regulator
        • Stainless Steel 1 stage Regulator (Threadless Seat) Integrated Diaphragm Valve
        • Stainless Steel 1 stage Regulator (Threadless Seat) Integrated Diaphragm Valve
        • Stainless Steel 2 stage Regulator (Threadless Seat) Integrated Diaphragm Valve
      • Nanotech & Semiconductor
        • Ultra High Purity Line Regulator
        • Ultra High Purity 1 stage Regulator
        • Ultra High Purity 2 stage Regulator
      • Specialty High Purity Regulators
        • Brass Low Flow 2 stage Regulator
        • High Flow Regulator
        • Ultra High Flow High Pressure Regulator
        • Single Stage Mini Regulator
        • Two Stage Mini Regulator
        • Back Pressure Regulator
        • High Flow Line Regulator
    • Specialty Application Regulators
      • Natural Gas Standards
        • Vacuum Flow Regulator
        • 4 Stage Regulator for Natural Gas Standards
      • EPA Protocols
        • Stainless Steel 1 stage Regulator (Threadless Seat) Integrated Diaphragm Valve
        • Stainless Steel 2 stage Regulator (Threadless Seat) Integrated Diaphragm Valve
        • Mercury Standards Regulator
      • Disposable Cylinder Regulators
      • Laser
        • Laser Assist Gas
      • Medical
        • Medical Flow Click Regulator
      • Life Science
        • Incubator Regulator
        • Dual Outlet Line Reg for Incubators
      • Back Pressure Regulators
      • Heated Regulator
        • Two Stage Electrical Heated Regulator
        • Electrical Vaporizing Regulator
      • Corrosive Service
        • Economy
        • Standard
        • Deluxe
        • Cross Purge
        • Tee Purge
        • Analytical Corrosive Environment 2 stage Regulator
        • Severe Enviroment Stainless Steel Regulator
      • Specific Gas Service Regulators
        • Acetylene Service
        • Oxygen Service
        • Fluorine Service
        • CO2 Incubator Regulator
      • Special Service Pressure Regulators
        • Vacuum Flow Regulator
        • 4 Stage Regulator for Natural Gas Standards
        • Incubator Regulator
        • Mercury Standards Regulator
        • Electrical Transformer Regulator
        • Severe Duty Stainless Steel Regulator
      • Low Delivery Pressure
        • Ultra Low Delivery Pressure
        • Very Low Delivery Pressure
        • Ultra Low Inlet Pressure
      • High Delivery Pressure
        • High Delivery Pressure
        • Heavy Duty High Pressure
      • Supelcoat Regulators
    • Regulator Mounting
      • Model 8RM Regulator Wall Mounting Bracket
      • Quick Mount for Regulators
      • Protocol Station
    • Changeover Manifolds
      • Principles of Operations
      • Lab Series Analytical Changeover
        • Lab Series
      • Economy Series
        • Economy
      • High Purity Brass and Stainless Series
        • Adjustable 100 & 200 psig Delivery
        • High Flow High Purity CO2 Changeover
      • Fully Auto System Inert and Flammable Gases
        • High Purity Fully Auto
      • Fully Auto PLC Base
        • Smart Logic
        • Smart Logic Plus
      • Life Science Switchover
        • Life Science
      • Intelliswitch for Laser and High Flow Apps
        • Intelliswitch
      • Liquid Supply Gas Phase Changeover
        • Analytical Series Liquid Cylinder Gas Phase
      • Liquid Supply Liquid Phase Changeover
        • 527 Series CroWiz
        • Stainless Steel VJ
      • High Flow
        • High Flow High Purity CO2 Changeover
      • High Delivery Pressure
        • High Pressure Automatic 1000-3500 psig delivery
      • Accessories
        • Mounting Racks
      • Alarm Systems
        • Alarm System
        • Status Checker
    • Gas Monitoring
      • Wireless
        • Wireless Gas Monitoring System
        • Wireless Gauge Reader
        • Wireless Transducer
        • Wireless Mechanical Freezer Monitor
      • Wired
        • StatusChecker
      • CO2 Monitor
      • VMG
    • Gas Detection/Monitoring
      • E3 Point Oxygen Gas Detector
      • Midas Gas Detector
      • Sensepoint XCD Gas Detector
      • HA Series Controller
      • Midas Package
      • Sensepoint XCD Package
    • Header Manifolds
      • Header Manifolds High Pressure
      • Modular Headers
    • Point of Use Panels
      • Modular Point of Use Panel
    • Cryogenic Liquid Manifolds
      • Cryogenic Freezer Manifold
      • 527 Series CroWiz
      • Stainless Steel VJ
    • Flowmeters
      • How to Read a Flowmeter
      • Compatibility Charts
      • 150 mm Standard Valve
      • 150 mm High Res Valve
      • Acrylic Flow Meters
      • 65 mm Standard Valve
      • HC - 1100 High Cap
      • 150 mm Gas Proportioner
      • Multi Tube
      • Electronic
      • Mass Flow
    • Purifiers
      • Nano/Semi
        • WeldPur
        • MaxPur
        • UltraPur
      • GC Carrier and Process Gas Purifiers Triple
      • GC Carrier and Process Gas Purifiers Dual
      • High Capacity High Flow Purifier
      • Gas Specific
      • Gas Drying
      • OMI-2
      • Click on
    • Pigtail and Hoses
      • Flexible Metal Hoses
      • Flexible Metal Pigtails
      • Synflex Hoses and Pigtails
    • Gauges
      • 2 1/2"Brass and Stainless Steel
      • 2" VCR Gages
      • 2 1/2" Indicating Pressure Switch
    • Generators
      • Gas Grade Section Table
      • Hydrogen Carrier Grade
      • Hydrogen Fuel Grade
      • Zero Air
      • FID Gas Station
      • Generator Back-up Panel
      • TOC
      • FT-IR
      • LCMS
        • NitroFlow Lab LC/MS
        • Nitrogen Generator LC/MS
        • TriGas w/compressor
        • TriGas
        • TriGas LCMS-5001
        • TriGas membrane w/compressor
      • Nitrogen
        • High Purity 99.9999%
        • High Flow 72 LPM 95-99.95% Purity
        • High Flow to 557 LPM 95-99.95% Purity
        • High Purity 99.99-99.9999% Purity
        • 4-131 LPM 95-99.95% Purity
        • 54-467 LPM 95-99.95% Purity
        • High Flow Monobed
        • Sample Evaporation
      • Air Dryers
      • Ultra Air Dryers
    • Valves
      • Check Valve
      • Safety Relief Valve
      • Diaphragm Valve
      • Instrument Valve
      • Lecture Valve
      • Manual Control Flow
      • Excess Flow Valve
      • Whisper Valve
    • Purge Assemblies
      • Analytical Tee
      • Cross Purge
      • Tee Purge
    • Cryogenic Accessories
      • Gloves
      • Transfer Hoses
      • Phase Separators
      • Cryogenic Supply Manifolds for Freezers
      • 527 Series CroWiz
      • Stainless Steel VJ
    • Gas Blenders
      • Gas Blenders for Meat Packaging
        • Tri Mix Blender
      • 2 Gas Proportional Blender
    • Miscellaneous Equipment
      • Cylinder Mounting
        • Cylinder Brackets/Clamps
        • Cylinder Bases/Stands
        • Gas Cylinder Stands
        • Cylinder Mounting Brackets Hand Trucks Stn Steel
        • Cylinder Pallets
        • Cylinder Racks & Ramp
      • Cylinder Carts & Trucks
        • Carts & Trucks
      • Floor Savers
        • Floor Savers for Cyl and Dewars
      • Cylinder Wrenches
        • Multipurpose Cylinder Wrench
        • Cylinder Wrenches
      • Scales
        • Cylinder Scales
        • Ramp Scale
      • Flash Arrestors
        • Gas Flash Arrestors
      • Heaters
        • Electric Heaters
        • Automatic Electric Heaters
      • Gas Filters
        • Economy Models
        • High Purity Non-Corrosive
        • High Purity Corrosive
        • High Performance
        • Atomic Absorption Acetylene
      • Inert Gas Leak Monitoring
        • Bench Model for Non-Flammable
      • Hydrogen Gas Leak Detector
        • Hydrogen Hand Held Leak Detector
      • Gas Sample Cylinders
        • Stainless Steel Gas Sample Cylinder
      • SFFE/SEC Cylinder Connection Kit
        • SFFE/SEC Cylinder Connection Kit
      • Cylinder Warming Blankets
        • Gas Cylinder Jackets
      • Worldwide Cylinder Connections
      • CGA Nipples & Nuts
        • Cylinder Valve Connection Fittings
      • Tubing and Fittings
        • Clean Tubing and Pipe Fittings
      • Supelcoat Part
    • Emissions Monitoring Applications
      • Disposable Cylinder Regulators
      • Ultra High Purity Stainless Steel
        • Stainless Steel 1 stage Regulator (Threadless Seat) Integrated Diaphragm Valve
        • Stainless Steel 2 stage Regulator (Threadless Seat) Integrated Diaphragm Valve
      • High Purity Stainless Steel
        • Stainless Steel 1 Stage Regulator (Threadless Seat)
        • Stainless Steel 2 Stage Regulator (Threadless Seat)
        • Stainless Steel Positive Seal
      • Mercury Regulator
        • Mercury Treated Regulator
        • Low Internal Coated Regulator
      • Vaporizing Regulator
        • Electrical Vaporizing Regulator
        • 4 Stage Regulator
      • Cylinder Warming Blankets
        • Gas Cylinder Jackets
      • Storage Cabinets
        • Heated Enclosure
      • EPA Protocols
        • Supelcoat Products
          • Cyclone Regulators
          • Supelcoat fittings, tubing, and flexible hoses
        • UHP Stainless Steel 1 Stage Regulator (Threadless Seat) Integrated Diaphragm Valve
        • Stainless Steel 2 stage Regulator (Threadless Seat) Integrated Diaphragm Valve
        • Mercury Standards Regulator
    • Natural Gas Standards
      • Vacuum Flow Regulator
      • 4 Stage Regulator for Natural Gas Standards
      • Heated Enclosure
      • Gas Cylinder Jackets
      • Supelcoat Regulators
      • Supelcoat Part
    • Process Gas Panels
      • EZ Gas Panels
    • Gas Cabinets
      • Guide to Gas Cabinet Safety
      • Gas Cyl Storage Cabinets
        • Lab Series Storage Cabinet
        • Semi Grade Storage Cabinet
      • EZ Gas Cabinets for Non Hazardous Gases
        • EZ Gas Cabinet
        • 278 Series Gas Cabinet Controller
      • Lab Series Gas Cabinets for Hazardous Gases
        • Lab 1000 Series Gas Cabinet for Flammable Gases
        • Lab 2000 Series Gas Cabinet for Toxic and Corrosive Gases
        • Lab 3000 Series Gas Cabinet for Highly Toxic and Pyrophoric Gases
      • NANO and Semi Series Gas Cabinets
        • NS 1000 Series Gas Cabinet for Flammable Gases
        • NS 2000 Series Gas Cabinet for Toxic and Corrosive Gases
        • NS 3000 Series Gas Cabinet for Highly Toxic and Pyrophoric Gases
        • NS 7000 Series Valve Manifold Box(VMB)
    • Life Science
      • RDF Catalog
      • Service Connector
      • Dual Outlet Line Reg for Incubators
      • Life Science Switchover
      • Cryogenic Freezer Manifold
      • Solvent System
    • Medical
      • Regulator
        • Medical Flow Click Regulator
      • Health Care Manifolds
      • Healthcare Manifold
        • Headers
    • Laser
      • Start Up Kits
      • Assist Gas Hoses
      • Lasing Gas Semi Auto Manifold
      • Assist Gas Dome Load Reg
      • Assist Gas Laser Station
      • Assist Gas Supply Fully Auto Cyl
      • Assist Gas Supply Fully Auto Dewar
      • Line Regulator Panel
      • Laser Gas Supply Systems
      • Beam Purge Liquid Cylinder Supply
      • Beam Purge Regulators
      • Cylinder Mounting Tri Rack
      • Plasma Point of Use
    • GC Installation
      • Smart Design
      • Traditional Design
      • GC Installation
      • H2 as Carrier And Fuel From Cylinders
      • Generators As Supply N2 Carrier H2 Fuel
      • H2 Carrier and Zero Air from Generators
      • N2 Carrier All Gasses Supplied By Generators
      • H2 as Carrier and Fuel Supplied By Generator
      • Smart Way
      • Central Gas Supply t Multiple GC's
    • Laboratory Design for New and Existing Labs
      • Design Assistance for Architectural and Engineering program
      • Design and Installation Services
    • Reference/Help Resources
      • World Wide Cylinder Connections
      • Gas Grade Selection Table
      • Diaphragm Valve Procedures
      • Conversion Tables and Dew Points
      • Withdrawal Rates:Liquified Gases
      • Line Sizes/Pressure Drop Charts
      • Abbreviations and Symbols
      • Glossary Common Terms
      • Physical Properties of Gas
      • Material Compatibility Chart
  • Engineering Solutions
    • Gas Detection/Monitoring
      • E3 Point Oxygen Gas Detector
      • Midas Gas Detector
      • Sensepoint XCD Gas Detector
      • HA Series Controller
      • Midas Package
      • Sensepoint XCD Package
    • Process Gas Panels
      • EZ Gas Panels
    • Gas Cabinets
      • Guide to Gas Cabinet Safety
      • Gas Cyl Storage Cabinets
        • Lab Series Storage Cabinet
        • Semi Grade Storage Cabinet
      • EZ Gas Cabinets for Non Hazardous Gases
        • EZ Gas Cabinet
        • 278 Series Gas Cabinet Controller
      • Lab Series Gas Cabinets for Hazardous Gases
        • Lab 1000 Series Gas Cabinet for Flammable Gases
        • Lab 2000 Series Gas Cabinet for Toxic and Corrosive Gases
        • Lab 3000 Series Gas Cabinet for Highly Toxic and Pyrophoric Gases
      • NANO and Semi Series Gas Cabinets
        • NS 1000 Series Gas Cabinet for Flammable Gases
        • NS 2000 Series Gas Cabinet for Toxic and Corrosive Gases
        • NS 3000 Series Gas Cabinet for Highly Toxic and Pyrophoric Gases
        • NS 7000 Series Valve Manifold Box(VMB)
    • Gas Blenders for Meat Packaging
      • Tri Mix Blender
    • High Flow Process Chemical Delivery System
  • Appendix
    • Specialty Gas Cylinders
    • Specialty Gas Cylinder Dimensions
    • Specialty Gas Cylinder Size Comparison Chart
    • Cylinder Identification
    • Safe Handling and Use
    • Liquefied Compressed Gases
    • Liquid Phase Withdrawal Procedure
    • Cryogenic Liquid Containors
    • Get Connected to Airgas
  • Useful Calculators
    • Max Flow for Gases Through a Cv
    • Minimum Cv Calculator for Gases
  • Conversion Programs
    • Convert Air to Specific Gas
    • Area
    • Distance/Length
    • Force
    • Gas Flow Equivalents
    • Liquid Flow Equivalents
    • Liquid Flow Velocity
    • Pressure
    • Temperature
    • Volume