Gases | STG (stg2.airgas.com)

We use cookies to improve your browsing experience and help us improve our websites. By continuing to use our website, you agree to our use of such cookies. Agree Learn more

Need an Account? Register or Login

One Time Payment | Need an Account? Register or Login

Find A Branch
Customer Service
SDS Search
Careers

Switch Account
Dashboard

Skip to main content

To see product availability

Enter a Delivery Zip Code

Need an Account? Register or Login

One Time Payment | Need an Account? Register or Login

Find A Branch
Customer Service
SDS Search
Careers

×

To see product availability

Enter a Delivery Zip Code

Shop
Industries
Solutions
Resources

TELL US MORE

To receive the most up-to-date product availability, pricing and delivery options, enter your zip code or log in to your account

Zip Code should not be blank Email and Password should not be blank

Enter Delivery Zip Code

or

Log In

Email Address

Password Show Hide

LOG IN

Forgot Password?

Need an Account? Register

TELL US MORE

Are you currently located in California?

8 characters minimum
One number
One lowercase letter
One uppercase letter
One special character (!@#$%&*)

Password cannot contain space

Pursuant to CA SB 478, if you are located in California, Airgas cannot display your product pricing until all items have been added to your shopping cart so that we can calculate all applicable fees, including, but not limited to, shipping and handling fees.

No

Yes

Have an account?Login

Gases
Gas Equipment
Welding Products
Safety Products
Tools & Hardware

#1 Promotion Text #1
View All

Home/
Category Page/
Gases

Results For:
By Category
Gases
CGA Connection
660 | 660 320 540 | 540

Narrow Results:

By Category
Carbon Dioxide (17)

Mixed Gases (16)

Oxygen (5)

Gas Grade
Ultra High Purity Grade (1)

Cylinder Size
business facet 1 (19)

business facet 2 (19)

dqa test cylinder size business facet 1 (15)

dqa test cylinder size business facet 2 (15)

10 (1)

33A | 33A (1)

80 (1)

80 | 80 (1)

CGA Connection
580 | 580 (14)

590 | 590 (12)

296 (9)

330 (7)

180 (6)

540 (6)

350LP | 350LP (5)

200 (4)

600 | 600 (4)

165 | 165 (3)

180 | 180 (3)

5 GAL LP (3)

724 (3)

DQA test - CGA business facet name 1 (3)

DQA test - CGA business facet name 2 (3)

296 | 296 (2)

300 (2)

C10 | C10 (2)

CGA1 (2)

CGA2 (2)

Test cga (2)

dqa test cga 1 (2)

dqa test cga 2 (2)

test cga2 (2)

350LP (1)

350_GGA (1)

510 (1)

510 | 510 (1)

510 | 510_1116 (1)

580_Test (1)

589 (1)

600 (1)

677 (1)

714 (1)

BusFacet_CGA1 (1)

BusFacet_CGA2 (1)

DQATest12345_cga (1)

DQATest2_cga (1)

DQA_350 | 350 (1)

DQA_Test1_cga (1)

None (1)

OTH (1)

QA test 1 (1)

QA test1 (1)

RP300_cga_Test (1)

Test BFN 1 (1)

TestBFN2 (1)

TestCGA (1)

test 123 (1)

test test dqa (1)

Gas Comp Amount1
1800.0000000 (1)

930.0000000 (1)

900.0000000 (1)

720.0000000 (1)

500.0000000 (1)

360.0000000 (1)

270.0000000 (1)

180.0000000 (2)

99.9010000 (1)

99.9320000 (1)

99.9983000 (1)

80.0000000 (1)

42.5000000 (1)

20.0000000 (1)

5.5000000 (1)

Gas Comp 2
PPM NITRIC OXIDE (6)

% NITROGEN (5)

PPM CARBON MONOXIDE (5)

Gas Comp Amount2
425.0000000 (1)

300.0000000 (1)

180.0000000 (1)

135.0000000 (1)

110.0000000 (1)

99.9460000 (1)

99.9945000 (1)

99.9983500 (1)

99.8935000 (1)

99.7580000 (1)

99.0000000 (1)

90.0000000 (2)

85.0000000 (1)

80.0000000 (1)

8.5000000 (1)

Gas Comp 3
% NITROGEN (8)

PPM CARBON MONOXIDE (4)

PPM NITRIC OXIDE (3)

PPM SULFUR DIOXIDE (1)

Gas Comp Amount3
1700.0000000 (1)

900.0000000 (1)

255.0000000 (1)

180.0000000 (1)

135.0000000 (1)

99.9200000 (1)

99.9640000 (1)

99.9710000 (1)

99.9721000 (1)

99.9840000 (1)

99.9872500 (1)

99.8020000 (1)

99.8965000 (1)

35.0000000 (1)

11.0000000 (1)

8.5000000 (1)

Compare Products Up to 4

Gases

Sort by:

OX 200

Industrial Oxygen, Size 200 Cylinder, CGA-540

Industrial Oxygen, Size 200 Cylinder, CGA-540

Show Full Description Hide Full Description

Compare

Industrial Oxygen, Size 200 Cylinder, CGA-540

Industrial Oxygen, Size 200 Cylinder, CGA-540

Industrial Oxygen, Size 200 Cylinder, CGA-540

Show Full Description Hide Full Description

Airgas Part #:OX 200

CD BD200

Carbon Dioxide Bone Dry Grade 3.0, Size 200 Cylinder, CGA-320

Carbon Dioxide Bone Dry Grade 3.0, Size 200 Cylinder, CGA-320

Show Full Description Hide Full Description

Compare

Carbon Dioxide Bone Dry Grade 3.0, Size 200 Cylinder, CGA-320

Carbon Dioxide Bone Dry Grade 3.0, Size 200 Cylinder, CGA-320

Carbon Dioxide Bone Dry Grade 3.0, Size 200 Cylinder, CGA-320

Show Full Description Hide Full Description

Airgas Part #:CD BD200

CD R200

Research Grade 5.0 Carbon Dioxide, Size 200 Cylinder, CGA-320

Research Grade 5.0 Carbon Dioxide, Size 200 Cylinder, CGA-320

Show Full Description Hide Full Description

Compare

Research Grade 5.0 Carbon Dioxide, Size 200 Cylinder, CGA-320

Research Grade 5.0 Carbon Dioxide, Size 200 Cylinder, CGA-320

Research Grade 5.0 Carbon Dioxide, Size 200 Cylinder, CGA-320

Show Full Description Hide Full Description

Airgas Part #:CD R200

CD I200

Instrument Grade 4.0 Carbon Dioxide, Size 200 Cylinder, CGA-320

Instrument Grade 4.0 Carbon Dioxide, Size 200 Cylinder, CGA-320

Show Full Description Hide Full Description

Compare

Instrument Grade 4.0 Carbon Dioxide, Size 200 Cylinder, CGA-320

Instrument Grade 4.0 Carbon Dioxide, Size 200 Cylinder, CGA-320

Instrument Grade 4.0 Carbon Dioxide, Size 200 Cylinder, CGA-320

Show Full Description Hide Full Description

Airgas Part #:CD I200

CD BD200S

Carbon Dioxide Bone Dry Grade 3.0, Size 200 Cylinder, CGA-320 With Syphon

Carbon Dioxide Bone Dry Grade 3.0, Size 200 Cylinder, CGA-320 With Syphon

Show Full Description Hide Full Description

Compare

Carbon Dioxide Bone Dry Grade 3.0, Size 200 Cylinder, CGA-320 With Syphon

Carbon Dioxide Bone Dry Grade 3.0, Size 200 Cylinder, CGA-320 With Syphon

Carbon Dioxide Bone Dry Grade 3.0, Size 200 Cylinder, CGA-320 With Syphon

Show Full Description Hide Full Description

Airgas Part #:CD BD200S

OX UHP200

Ultra High Purity 4.4 Grade Oxygen, Size 200 Cylinder, CGA-540

Ultra High Purity 4.4 Grade Oxygen, Size 200 Cylinder, CGA-540

Show Full Description Hide Full Description

Compare

Ultra High Purity 4.4 Grade Oxygen, Size 200 Cylinder, CGA-540

Ultra High Purity 4.4 Grade Oxygen, Size 200 Cylinder, CGA-540

Ultra High Purity 4.4 Grade Oxygen, Size 200 Cylinder, CGA-540

Show Full Description Hide Full Description

Airgas Part #:OX UHP200

CD AN200

Anaerobic Grade 3.0 Carbon Dioxide, Size 200 Cylinder, CGA-320

Anaerobic Grade 3.0 Carbon Dioxide, Size 200 Cylinder, CGA-320

Show Full Description Hide Full Description

Compare

Anaerobic Grade 3.0 Carbon Dioxide, Size 200 Cylinder, CGA-320

Anaerobic Grade 3.0 Carbon Dioxide, Size 200 Cylinder, CGA-320

Anaerobic Grade 3.0 Carbon Dioxide, Size 200 Cylinder, CGA-320

Show Full Description Hide Full Description

Airgas Part #:CD AN200

CD I200S

Instrument Grade 4.0 Carbon Dioxide, Size 200 Cylinder, CGA-320 With Syphon

Instrument Grade 4.0 Carbon Dioxide, Size 200 Cylinder, CGA-320 With Syphon

Show Full Description Hide Full Description

Compare

Instrument Grade 4.0 Carbon Dioxide, Size 200 Cylinder, CGA-320 With Syphon

Instrument Grade 4.0 Carbon Dioxide, Size 200 Cylinder, CGA-320 With Syphon

Instrument Grade 4.0 Carbon Dioxide, Size 200 Cylinder, CGA-320 With Syphon

Show Full Description Hide Full Description

Airgas Part #:CD I200S

CD R200S

Research Grade 5.0 Carbon Dioxide, Size 200 Cylinder, CGA-320 With Syphon

Research Grade 5.0 Carbon Dioxide, Size 200 Cylinder, CGA-320 With Syphon

Show Full Description Hide Full Description

Compare

Research Grade 5.0 Carbon Dioxide, Size 200 Cylinder, CGA-320 With Syphon

Research Grade 5.0 Carbon Dioxide, Size 200 Cylinder, CGA-320 With Syphon

Research Grade 5.0 Carbon Dioxide, Size 200 Cylinder, CGA-320 With Syphon

Show Full Description Hide Full Description

Airgas Part #:CD R200S

CD PC200

Pure Clean Grade Carbon Dioxide, Size 200 Cylinder, CGA-320

Pure Clean Grade Carbon Dioxide, Size 200 Cylinder, CGA-320

Show Full Description Hide Full Description

Compare

Pure Clean Grade Carbon Dioxide, Size 200 Cylinder, CGA-320

Pure Clean Grade Carbon Dioxide, Size 200 Cylinder, CGA-320

Pure Clean Grade Carbon Dioxide, Size 200 Cylinder, CGA-320

Show Full Description Hide Full Description

Airgas Part #:CD PC200

E03NI99E15A3437

135PPM Nitric Oxide 930PPM Carbon Monoxide Balance Nitrogen EPA Protocol Standard Mixture, Size 150A Aluminum Cylinder, CGA-660

135PPM Nitric Oxide 930PPM Carbon Monoxide Balance Nitrogen EPA Protocol Standard Mixture, Size 150A Aluminum Cylinder, CGA-660

Show Full Description Hide Full Description

Compare

135PPM Nitric Oxide 930PPM Carbon Monoxide Balance Nitrogen EPA Protocol Standard Mixture, Size 150A Aluminum Cylinder, CGA-660

135PPM Nitric Oxide 930PPM Carbon Monoxide Balance Nitrogen EPA Protocol Standard Mixture, Size 150A Aluminum Cylinder, CGA-660

135PPM Nitric Oxide 930PPM Carbon Monoxide Balance Nitrogen EPA Protocol Standard Mixture, Size 150A Aluminum Cylinder, CGA-660

Show Full Description Hide Full Description

Airgas Part #:E03NI99E15A3437

OX R200

Research 5.0 Grade Oxygen, Size 200 Cylinder, CGA-540

Research 5.0 Grade Oxygen, Size 200 Cylinder, CGA-540

Show Full Description Hide Full Description

Compare

Research 5.0 Grade Oxygen, Size 200 Cylinder, CGA-540

Research 5.0 Grade Oxygen, Size 200 Cylinder, CGA-540

Research 5.0 Grade Oxygen, Size 200 Cylinder, CGA-540

Show Full Description Hide Full Description

Airgas Part #:OX R200

E03NI99E15A2218

135PPM Nitric Oxide 900PPM Carbon Monoxide Balance Nitrogen EPA Protocol Standard Mixture, Size 150A Aluminum Cylinder, CGA-660

135PPM Nitric Oxide 900PPM Carbon Monoxide Balance Nitrogen EPA Protocol Standard Mixture, Size 150A Aluminum Cylinder, CGA-660

Show Full Description Hide Full Description

Compare

135PPM Nitric Oxide 900PPM Carbon Monoxide Balance Nitrogen EPA Protocol Standard Mixture, Size 150A Aluminum Cylinder, CGA-660

135PPM Nitric Oxide 900PPM Carbon Monoxide Balance Nitrogen EPA Protocol Standard Mixture, Size 150A Aluminum Cylinder, CGA-660

135PPM Nitric Oxide 900PPM Carbon Monoxide Balance Nitrogen EPA Protocol Standard Mixture, Size 150A Aluminum Cylinder, CGA-660

Show Full Description Hide Full Description

Airgas Part #:E03NI99E15A2218

E03NI99E15A4179

42.5PPM Nitric Oxide 85PPM Carbon Monoxide Balance Nitrogen EPA Protocol Standard Mixture, Size 150A Aluminum Cylinder, CGA-660

42.5PPM Nitric Oxide 85PPM Carbon Monoxide Balance Nitrogen EPA Protocol Standard Mixture, Size 150A Aluminum Cylinder, CGA-660

Show Full Description Hide Full Description

Compare

42.5PPM Nitric Oxide 85PPM Carbon Monoxide Balance Nitrogen EPA Protocol Standard Mixture, Size 150A Aluminum Cylinder, CGA-660

42.5PPM Nitric Oxide 85PPM Carbon Monoxide Balance Nitrogen EPA Protocol Standard Mixture, Size 150A Aluminum Cylinder, CGA-660

42.5PPM Nitric Oxide 85PPM Carbon Monoxide Balance Nitrogen EPA Protocol Standard Mixture, Size 150A Aluminum Cylinder, CGA-660

Show Full Description Hide Full Description

Airgas Part #:E03NI99E15A4179

E03NI99E15A1668

8.5PPM Nitric Oxide 8.5PPM Carbon Monoxide Balance Nitrogen EPA Protocol Gas Mixture, Size 150A Aluminum Cylinder, CGA-660

8.5PPM Nitric Oxide 8.5PPM Carbon Monoxide Balance Nitrogen EPA Protocol Gas Mixture, Size 150A Aluminum Cylinder, CGA-660

Show Full Description Hide Full Description

Compare

8.5PPM Nitric Oxide 8.5PPM Carbon Monoxide Balance Nitrogen EPA Protocol Gas Mixture, Size 150A Aluminum Cylinder, CGA-660

8.5PPM Nitric Oxide 8.5PPM Carbon Monoxide Balance Nitrogen EPA Protocol Gas Mixture, Size 150A Aluminum Cylinder, CGA-660

8.5PPM Nitric Oxide 8.5PPM Carbon Monoxide Balance Nitrogen EPA Protocol Gas Mixture, Size 150A Aluminum Cylinder, CGA-660

Show Full Description Hide Full Description

Airgas Part #:E03NI99E15A1668

E03NI99E15A4197

255PPM Nitric Oxide 425PPM Carbon Monoxide Balance Nitrogen EPA Protocol Standard Mixture, Size 150A Aluminum Cylinder, CGA-660

255PPM Nitric Oxide 425PPM Carbon Monoxide Balance Nitrogen EPA Protocol Standard Mixture, Size 150A Aluminum Cylinder, CGA-660

Show Full Description Hide Full Description

Compare

255PPM Nitric Oxide 425PPM Carbon Monoxide Balance Nitrogen EPA Protocol Standard Mixture, Size 150A Aluminum Cylinder, CGA-660

255PPM Nitric Oxide 425PPM Carbon Monoxide Balance Nitrogen EPA Protocol Standard Mixture, Size 150A Aluminum Cylinder, CGA-660

255PPM Nitric Oxide 425PPM Carbon Monoxide Balance Nitrogen EPA Protocol Standard Mixture, Size 150A Aluminum Cylinder, CGA-660

Show Full Description Hide Full Description

Airgas Part #:E03NI99E15A4197

E03NI99E15A36H3

110PPM Carbon Monoxide 180PPM Nitric Oxide Balance Nitrogen EPA Protocol Standard Mixture, Size 150A Aluminum Cylinder, CGA-660

110PPM Carbon Monoxide 180PPM Nitric Oxide Balance Nitrogen EPA Protocol Standard Mixture, Size 150A Aluminum Cylinder, CGA-660

Show Full Description Hide Full Description

Compare

110PPM Carbon Monoxide 180PPM Nitric Oxide Balance Nitrogen EPA Protocol Standard Mixture, Size 150A Aluminum Cylinder, CGA-660

110PPM Carbon Monoxide 180PPM Nitric Oxide Balance Nitrogen EPA Protocol Standard Mixture, Size 150A Aluminum Cylinder, CGA-660

110PPM Carbon Monoxide 180PPM Nitric Oxide Balance Nitrogen EPA Protocol Standard Mixture, Size 150A Aluminum Cylinder, CGA-660

Show Full Description Hide Full Description

Airgas Part #:E03NI99E15A36H3

E03NI99E15A2018

5.5PPM Nitric Oxide 11PPM Carbon Monoxide Balance Nitrogen EPA Protocol Gas Mixture, Size 150A Aluminum Cylinder, CGA-660

5.5PPM Nitric Oxide 11PPM Carbon Monoxide Balance Nitrogen EPA Protocol Gas Mixture, Size 150A Aluminum Cylinder, CGA-660

Show Full Description Hide Full Description

Compare

5.5PPM Nitric Oxide 11PPM Carbon Monoxide Balance Nitrogen EPA Protocol Gas Mixture, Size 150A Aluminum Cylinder, CGA-660

5.5PPM Nitric Oxide 11PPM Carbon Monoxide Balance Nitrogen EPA Protocol Gas Mixture, Size 150A Aluminum Cylinder, CGA-660

5.5PPM Nitric Oxide 11PPM Carbon Monoxide Balance Nitrogen EPA Protocol Gas Mixture, Size 150A Aluminum Cylinder, CGA-660

Show Full Description Hide Full Description

Airgas Part #:E03NI99E15A2018

E03NI99E15A2219

90PPM Nitric Oxide 900PPM Carbon Monoxide Balance Nitrogen EPA Protocol Standard Mixture, Size 150A Aluminum Cylinder, CGA-660

90PPM Nitric Oxide 900PPM Carbon Monoxide Balance Nitrogen EPA Protocol Standard Mixture, Size 150A Aluminum Cylinder, CGA-660

Show Full Description Hide Full Description

Compare

90PPM Nitric Oxide 900PPM Carbon Monoxide Balance Nitrogen EPA Protocol Standard Mixture, Size 150A Aluminum Cylinder, CGA-660

90PPM Nitric Oxide 900PPM Carbon Monoxide Balance Nitrogen EPA Protocol Standard Mixture, Size 150A Aluminum Cylinder, CGA-660

90PPM Nitric Oxide 900PPM Carbon Monoxide Balance Nitrogen EPA Protocol Standard Mixture, Size 150A Aluminum Cylinder, CGA-660

Show Full Description Hide Full Description

Airgas Part #:E03NI99E15A2219

CD LZ200

Laser Pure Grade Carbon Dioxide, Size 200 Cylinder, CGA-320

Laser Pure Grade Carbon Dioxide, Size 200 Cylinder, CGA-320

Show Full Description Hide Full Description

Compare

Laser Pure Grade Carbon Dioxide, Size 200 Cylinder, CGA-320

Laser Pure Grade Carbon Dioxide, Size 200 Cylinder, CGA-320

Laser Pure Grade Carbon Dioxide, Size 200 Cylinder, CGA-320

Show Full Description Hide Full Description

Airgas Part #:CD LZ200

1
2
NEXT ›

Gas Supply

Gas Supply Modes
Bulk
Cylinders
Dynamic On-site Mixer
Jobsite Skid
Liquid Cylinders
MicroBulk
On-site Generation - FLOXAL

Solutions

Airgas Dry Ice
eBusiness Solutions
Red-D-Arc
Safety Solutions
Supply Chain Solutions
Welding Automation
Welding Efficiency

Industries

Airgas Healthcare
Beverage
Construction
Energy & Chemicals
Food
Life Sciences
Metal Fabrication
Primary Materials
Retail

Resources

Airgas Outlet
Catalogs
COA Search
FAQs
Offers & Rebates
Safety Notices
SDS Search
Tutorials
User Guides

Our Company

Careers
Events
Mergers & Acquisitions
Newsroom
Overview
Sustainability
Visit Parent Company

Contact

Connect with Sales
Customer Service
Find a Branch
Emergency Response

Login
Register
Shop Products
Find A Branch
Industries
Solutions
Customer Service
Search Careers
Newsroom

© 2023 Airgas, Inc. All Rights Reserved.
|Customer Service ||Privacy Policy ||Terms & Conditions ||Terms of Sale ||Do Not Sell/Share My Personal Information ||Mobile App Policy ||Website Accessibility ||Return Policy |

E90E547507C2A388EB58489C978F4F62