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
590

Narrow Results:

By Category
Mixed Gases (70)

Air (1)

Gas Grade
BATCH ANALYZED-SPEC (1)

DQA gas grade bus facet 1 (1)

DQA gas grade bus facet 2 (1)

Portable Calibration Mix (1)

Cylinder Size
dqa test cylinder size business facet 1 (45)

dqa test cylinder size business facet 2 (45)

business facet 1 (17)

business facet 2 (17)

DQA test cyl size bus facet 1 (6)

DQA test cyl size bus facet 2 (6)

300 HP STEEL (1)

300A HP ALUMINUM (1)

552DS (1)

CGA Connection
350 (70)

C10 (61)

660 (60)

350 | 350 (47)

320 (17)

660 | 660 (16)

580 | 580 (14)

590 | 590 (12)

296 (9)

330 (7)

180 (6)

540 (6)

350LP | 350LP (5)

540 | 540 (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)

450.0000000 (1)

385.0000000 (1)

170.0000000 (1)

150.0000000 (1)

99.9600000 (1)

99.9800000 (1)

99.8800000 (1)

97.5000000 (1)

94.5000000 (1)

94.0000000 (1)

92.0000000 (1)

91.5000000 (1)

91.0000000 (1)

90.0000000 (3)

88.0000000 (3)

86.2500000 (1)

86.0000000 (1)

85.0000000 (1)

82.0000000 (1)

81.1000000 (1)

81.0000000 (1)

80.0000000 (2)

79.1000000 (4)

79.0000000 (4)

78.9400000 (1)

78.0000000 (1)

69.0000000 (1)

64.0000000 (1)

59.0000000 (1)

23.0000000 (1)

22.5000000 (3)

21.0000000 (2)

20.9000000 (1)

20.0000000 (4)

18.0000000 (3)

17.0000000 (1)

15.0000000 (1)

12.0000000 (1)

11.5000000 (2)

10.0000000 (3)

8.0000000 (2)

6.2500000 (1)

6.0000000 (1)

5.0000000 (1)

2.5000000 (1)

Gas Comp 2
% OXYGEN (35)

% NITROGEN (19)

% AIR (3)

% CARBON DIOXIDE (3)

PPM CARBON MONOXIDE (3)

% HELIUM (2)

% METHANE (2)

PPM CARBON DIOXIDE (2)

PPM PROPANE (1)

Gas Comp Amount2
1200.0000000 (1)

900.0000000 (1)

400.0000000 (1)

200.0000000 (1)

180.0000000 (1)

99.9615000 (1)

97.5000000 (1)

95.0000000 (1)

93.7500000 (1)

92.0000000 (2)

90.0000000 (2)

88.9550000 (1)

88.5000000 (1)

84.7750000 (1)

83.0000000 (1)

82.0000000 (2)

81.9375000 (1)

80.0000000 (3)

79.0000000 (1)

79.0906000 (1)

77.8200000 (1)

77.5000000 (1)

76.9100000 (1)

76.0000000 (1)

40.0000000 (1)

22.0000000 (1)

21.0000000 (6)

20.9000000 (5)

20.0000000 (4)

19.0000000 (1)

18.9000000 (1)

18.0000000 (2)

15.0000000 (1)

14.0000000 (1)

13.7500000 (1)

12.0000000 (4)

10.0000000 (3)

9.0000000 (3)

8.5000000 (1)

8.0000000 (1)

6.0000000 (1)

5.5000000 (1)

4.0000000 (1)

2.5000000 (2)

Gas Comp 3
% NITROGEN (8)

PPM CARBON MONOXIDE (5)

% OXYGEN (4)

% CARBON DIOXIDE (2)

% ARGON (1)

PPM AMMONIA (1)

Gas Comp Amount3
2250.0000000 (1)

900.0000000 (1)

625.0000000 (1)

600.0000000 (1)

94.0000000 (1)

90.9850000 (1)

85.0000000 (1)

84.5000000 (1)

79.0830000 (1)

78.9960000 (1)

78.0000000 (1)

77.4100000 (1)

77.4820000 (1)

60.0000000 (1)

22.0000000 (1)

21.0000000 (1)

18.0000000 (1)

12.0000000 (1)

11.0000000 (1)

10.0000000 (1)

2.0000000 (1)

Gas Comp 4
% CARBON MONOXIDE (1)

MG HYDROGEN (1)

Gas Comp Amount4
24.5000000 (1)

1.0000000 (1)

Gas Comp 5
% HYDROGEN (1)

PPB ARGON (1)

Gas Comp Amount5
4.5000000 (1)

1.0000000 (1)

Gas Comp 6
% CARBON DIOXIDE (1)

MG/L METHANE (1)

Gas Comp Amount6
8.0000000 (1)

1.0000000 (1)

Compare Products Up to 4

Gases

Sort by:

E03NI76E15A1877

900PPM Carbon Monoxide 23% Oxygen Balance Nitrogen EPA Protocol Standard Mixture, Size 150A Aluminum Cylinder, CGA-590 (G2 Analysis For Oxygen)

900PPM Carbon Monoxide 23% Oxygen Balance Nitrogen EPA Protocol Standard Mixture, Size 150A Aluminum Cylinder, CGA-590 (G2 Analysis For Oxygen)

Show Full Description Hide Full Description

Compare

900PPM Carbon Monoxide 23% Oxygen Balance Nitrogen EPA Protocol Standard Mixture, Size 150A Aluminum Cylinder, CGA-590 (G2 Analysis For Oxygen)

900PPM Carbon Monoxide 23% Oxygen Balance Nitrogen EPA Protocol Standard Mixture, Size 150A Aluminum Cylinder, CGA-590 (G2 Analysis For Oxygen)

900PPM Carbon Monoxide 23% Oxygen Balance Nitrogen EPA Protocol Standard Mixture, Size 150A Aluminum Cylinder, CGA-590 (G2 Analysis For Oxygen)

Show Full Description Hide Full Description

Airgas Part #:E03NI76E15A1877

E02NI77E15A0084

22.5% Oxygen Balance Nitrogen EPA Protocol Standard Mixture, Size 150A Aluminum Cylinder, CGA-590

22.5% Oxygen Balance Nitrogen EPA Protocol Standard Mixture, Size 150A Aluminum Cylinder, CGA-590

Show Full Description Hide Full Description

Compare

22.5% Oxygen Balance Nitrogen EPA Protocol Standard Mixture, Size 150A Aluminum Cylinder, CGA-590

22.5% Oxygen Balance Nitrogen EPA Protocol Standard Mixture, Size 150A Aluminum Cylinder, CGA-590

22.5% Oxygen Balance Nitrogen EPA Protocol Standard Mixture, Size 150A Aluminum Cylinder, CGA-590

Show Full Description Hide Full Description

Airgas Part #:E02NI77E15A0084

E02NI82E15A3443

18% Oxygen Balance Nitrogen EPA Protocol Standard Mixture, Size 150A Aluminum Cylinder, CGA-590

18% Oxygen Balance Nitrogen EPA Protocol Standard Mixture, Size 150A Aluminum Cylinder, CGA-590

Show Full Description Hide Full Description

Compare

18% Oxygen Balance Nitrogen EPA Protocol Standard Mixture, Size 150A Aluminum Cylinder, CGA-590

18% Oxygen Balance Nitrogen EPA Protocol Standard Mixture, Size 150A Aluminum Cylinder, CGA-590

18% Oxygen Balance Nitrogen EPA Protocol Standard Mixture, Size 150A Aluminum Cylinder, CGA-590

Show Full Description Hide Full Description

Airgas Part #:E02NI82E15A3443

E02NI79E15A00B1

21% Oxygen Balance Nitrogen EPA Protocol Standard Mixture, Size 150A Aluminum Cylinder, CGA-590

21% Oxygen Balance Nitrogen EPA Protocol Standard Mixture, Size 150A Aluminum Cylinder, CGA-590

Show Full Description Hide Full Description

Compare

21% Oxygen Balance Nitrogen EPA Protocol Standard Mixture, Size 150A Aluminum Cylinder, CGA-590

21% Oxygen Balance Nitrogen EPA Protocol Standard Mixture, Size 150A Aluminum Cylinder, CGA-590

21% Oxygen Balance Nitrogen EPA Protocol Standard Mixture, Size 150A Aluminum Cylinder, CGA-590

Show Full Description Hide Full Description

Airgas Part #:E02NI79E15A00B1

AI CZ15A

Cem-Cal Zero Grade Air, Size 150A Aluminum Cylinder, CGA-590 (Batch Analyzed Certificate of Analysis Included)

Cem-Cal Zero Grade Air, Size 150A Aluminum Cylinder, CGA-590 (Batch Analyzed Certificate of Analysis Included)

Show Full Description Hide Full Description

Compare

Cem-Cal Zero Grade Air, Size 150A Aluminum Cylinder, CGA-590 (Batch Analyzed Certificate of Analysis Included)

Cem-Cal Zero Grade Air, Size 150A Aluminum Cylinder, CGA-590 (Batch Analyzed Certificate of Analysis Included)

Cem-Cal Zero Grade Air, Size 150A Aluminum Cylinder, CGA-590 (Batch Analyzed Certificate of Analysis Included)

Show Full Description Hide Full Description

Airgas Part #:AI CZ15A

X02AI95C2000117

5% Carbon Dioxide Balance Air Certified Standard Mixture, Size 200 Cylinder, CGA-590

5% Carbon Dioxide Balance Air Certified Standard Mixture, Size 200 Cylinder, CGA-590

Show Full Description Hide Full Description

Compare

5% Carbon Dioxide Balance Air Certified Standard Mixture, Size 200 Cylinder, CGA-590

5% Carbon Dioxide Balance Air Certified Standard Mixture, Size 200 Cylinder, CGA-590

5% Carbon Dioxide Balance Air Certified Standard Mixture, Size 200 Cylinder, CGA-590

Show Full Description Hide Full Description

Airgas Part #:X02AI95C2000117

E02NI79E15A0099

20.9% Oxygen Balance Nitrogen EPA Protocol Standard Mixture, Size 150A Aluminum Cylinder, CGA-590

20.9% Oxygen Balance Nitrogen EPA Protocol Standard Mixture, Size 150A Aluminum Cylinder, CGA-590

Show Full Description Hide Full Description

Compare

20.9% Oxygen Balance Nitrogen EPA Protocol Standard Mixture, Size 150A Aluminum Cylinder, CGA-590

20.9% Oxygen Balance Nitrogen EPA Protocol Standard Mixture, Size 150A Aluminum Cylinder, CGA-590

20.9% Oxygen Balance Nitrogen EPA Protocol Standard Mixture, Size 150A Aluminum Cylinder, CGA-590

Show Full Description Hide Full Description

Airgas Part #:E02NI79E15A0099

E02NI80E15A3290

20% Oxygen Balance Nitrogen EPA Protocol Standard Mixture, Size 150A Aluminum Cylinder, CGA-590

20% Oxygen Balance Nitrogen EPA Protocol Standard Mixture, Size 150A Aluminum Cylinder, CGA-590

Show Full Description Hide Full Description

Compare

20% Oxygen Balance Nitrogen EPA Protocol Standard Mixture, Size 150A Aluminum Cylinder, CGA-590

20% Oxygen Balance Nitrogen EPA Protocol Standard Mixture, Size 150A Aluminum Cylinder, CGA-590

20% Oxygen Balance Nitrogen EPA Protocol Standard Mixture, Size 150A Aluminum Cylinder, CGA-590

Show Full Description Hide Full Description

Airgas Part #:E02NI80E15A3290

E02NI78E15A0124

22% Oxygen Balance Nitrogen EPA Protocol Standard Mixture, Size 150A Aluminum Cylinder, CGA-590

22% Oxygen Balance Nitrogen EPA Protocol Standard Mixture, Size 150A Aluminum Cylinder, CGA-590

Show Full Description Hide Full Description

Compare

22% Oxygen Balance Nitrogen EPA Protocol Standard Mixture, Size 150A Aluminum Cylinder, CGA-590

22% Oxygen Balance Nitrogen EPA Protocol Standard Mixture, Size 150A Aluminum Cylinder, CGA-590

22% Oxygen Balance Nitrogen EPA Protocol Standard Mixture, Size 150A Aluminum Cylinder, CGA-590

Show Full Description Hide Full Description

Airgas Part #:E02NI78E15A0124

X02CD80C2002863

20% Oxygen Balance Carbon Dioxide Certified Standard Mixture, Size 200 Cylinder, CGA-590

20% Oxygen Balance Carbon Dioxide Certified Standard Mixture, Size 200 Cylinder, CGA-590

Show Full Description Hide Full Description

Compare

20% Oxygen Balance Carbon Dioxide Certified Standard Mixture, Size 200 Cylinder, CGA-590

20% Oxygen Balance Carbon Dioxide Certified Standard Mixture, Size 200 Cylinder, CGA-590

20% Oxygen Balance Carbon Dioxide Certified Standard Mixture, Size 200 Cylinder, CGA-590

Show Full Description Hide Full Description

Airgas Part #:X02CD80C2002863

E02NI83E15A3473

17% Oxygen Balance Nitrogen EPA Protocol Standard Mixture, Size 150A Aluminum Cylinder, CGA-590

17% Oxygen Balance Nitrogen EPA Protocol Standard Mixture, Size 150A Aluminum Cylinder, CGA-590

Show Full Description Hide Full Description

Compare

17% Oxygen Balance Nitrogen EPA Protocol Standard Mixture, Size 150A Aluminum Cylinder, CGA-590

17% Oxygen Balance Nitrogen EPA Protocol Standard Mixture, Size 150A Aluminum Cylinder, CGA-590

17% Oxygen Balance Nitrogen EPA Protocol Standard Mixture, Size 150A Aluminum Cylinder, CGA-590

Show Full Description Hide Full Description

Airgas Part #:E02NI83E15A3473

X02AI99C15A6162

400PPM Carbon Dioxide Balance Air Certified Standard Mixture, Size 150A Aluminum Cylinder, CGA-590

400PPM Carbon Dioxide Balance Air Certified Standard Mixture, Size 150A Aluminum Cylinder, CGA-590

Show Full Description Hide Full Description

Compare

400PPM Carbon Dioxide Balance Air Certified Standard Mixture, Size 150A Aluminum Cylinder, CGA-590

400PPM Carbon Dioxide Balance Air Certified Standard Mixture, Size 150A Aluminum Cylinder, CGA-590

400PPM Carbon Dioxide Balance Air Certified Standard Mixture, Size 150A Aluminum Cylinder, CGA-590

Show Full Description Hide Full Description

Airgas Part #:X02AI99C15A6162

E02NI86E15A0488

13.75% Oxygen Balance Nitrogen EPA Protocol Standard Mixture, Size 150A Aluminum Cylinder, CGA-590

13.75% Oxygen Balance Nitrogen EPA Protocol Standard Mixture, Size 150A Aluminum Cylinder, CGA-590

Show Full Description Hide Full Description

Compare

13.75% Oxygen Balance Nitrogen EPA Protocol Standard Mixture, Size 150A Aluminum Cylinder, CGA-590

13.75% Oxygen Balance Nitrogen EPA Protocol Standard Mixture, Size 150A Aluminum Cylinder, CGA-590

13.75% Oxygen Balance Nitrogen EPA Protocol Standard Mixture, Size 150A Aluminum Cylinder, CGA-590

Show Full Description Hide Full Description

Airgas Part #:E02NI86E15A0488

E02NI91E15A3101

9% Oxygen Balance Nitrogen EPA Protocol Standard Mixture, Size 150A Aluminum Cylinder, CGA-590

9% Oxygen Balance Nitrogen EPA Protocol Standard Mixture, Size 150A Aluminum Cylinder, CGA-590

Show Full Description Hide Full Description

Compare

9% Oxygen Balance Nitrogen EPA Protocol Standard Mixture, Size 150A Aluminum Cylinder, CGA-590

9% Oxygen Balance Nitrogen EPA Protocol Standard Mixture, Size 150A Aluminum Cylinder, CGA-590

9% Oxygen Balance Nitrogen EPA Protocol Standard Mixture, Size 150A Aluminum Cylinder, CGA-590

Show Full Description Hide Full Description

Airgas Part #:E02NI91E15A3101

X02NI80C15A5622

20% Oxygen Balance Nitrogen Certified Standard Mixture, Size 150A Aluminum Cylinder, CGA-590

20% Oxygen Balance Nitrogen Certified Standard Mixture, Size 150A Aluminum Cylinder, CGA-590

Show Full Description Hide Full Description

Compare

20% Oxygen Balance Nitrogen Certified Standard Mixture, Size 150A Aluminum Cylinder, CGA-590

20% Oxygen Balance Nitrogen Certified Standard Mixture, Size 150A Aluminum Cylinder, CGA-590

20% Oxygen Balance Nitrogen Certified Standard Mixture, Size 150A Aluminum Cylinder, CGA-590

Show Full Description Hide Full Description

Airgas Part #:X02NI80C15A5622

X02AI97C3003199

2.5% Methane Balance Air Certified Standard Mixtire, Size 300 Cylinder, CGA-590

2.5% Methane Balance Air Certified Standard Mixtire, Size 300 Cylinder, CGA-590

Show Full Description Hide Full Description

Compare

2.5% Methane Balance Air Certified Standard Mixtire, Size 300 Cylinder, CGA-590

2.5% Methane Balance Air Certified Standard Mixtire, Size 300 Cylinder, CGA-590

2.5% Methane Balance Air Certified Standard Mixtire, Size 300 Cylinder, CGA-590

Show Full Description Hide Full Description

Airgas Part #:X02AI97C3003199

X02AI99C2009634

385PPM Carbon Dioxide Balance Air Certified Standard Mixture, Size 200 Cylinder, CGA-590

385PPM Carbon Dioxide Balance Air Certified Standard Mixture, Size 200 Cylinder, CGA-590

Show Full Description Hide Full Description

Compare

385PPM Carbon Dioxide Balance Air Certified Standard Mixture, Size 200 Cylinder, CGA-590

385PPM Carbon Dioxide Balance Air Certified Standard Mixture, Size 200 Cylinder, CGA-590

385PPM Carbon Dioxide Balance Air Certified Standard Mixture, Size 200 Cylinder, CGA-590

Show Full Description Hide Full Description

Airgas Part #:X02AI99C2009634

X02NI79C15A5611

21% Oxygen Balance Nitrogen Certified Standard Mixture, Size 150A Aluminum Cylinder, CGA-590

21% Oxygen Balance Nitrogen Certified Standard Mixture, Size 150A Aluminum Cylinder, CGA-590

Show Full Description Hide Full Description

Compare

21% Oxygen Balance Nitrogen Certified Standard Mixture, Size 150A Aluminum Cylinder, CGA-590

21% Oxygen Balance Nitrogen Certified Standard Mixture, Size 150A Aluminum Cylinder, CGA-590

21% Oxygen Balance Nitrogen Certified Standard Mixture, Size 150A Aluminum Cylinder, CGA-590

Show Full Description Hide Full Description

Airgas Part #:X02NI79C15A5611

X02AR90C3002555

10% Oxygen Balance Argon Certified Standard Mixture, Size 300 Cylinder, CGA-590

10% Oxygen Balance Argon Certified Standard Mixture, Size 300 Cylinder, CGA-590

Show Full Description Hide Full Description

Compare

10% Oxygen Balance Argon Certified Standard Mixture, Size 300 Cylinder, CGA-590

10% Oxygen Balance Argon Certified Standard Mixture, Size 300 Cylinder, CGA-590

10% Oxygen Balance Argon Certified Standard Mixture, Size 300 Cylinder, CGA-590

Show Full Description Hide Full Description

Airgas Part #:X02AR90C3002555

E03NI77E15A3964

180PPM Carbon Monoxide 22.5% Oxygen Balance Nitrogen EPA Protocol Standard Mixture, Size 150A Aluminum Cylinder, CGA-590

180PPM Carbon Monoxide 22.5% Oxygen Balance Nitrogen EPA Protocol Standard Mixture, Size 150A Aluminum Cylinder, CGA-590

Show Full Description Hide Full Description

Compare

180PPM Carbon Monoxide 22.5% Oxygen Balance Nitrogen EPA Protocol Standard Mixture, Size 150A Aluminum Cylinder, CGA-590

180PPM Carbon Monoxide 22.5% Oxygen Balance Nitrogen EPA Protocol Standard Mixture, Size 150A Aluminum Cylinder, CGA-590

180PPM Carbon Monoxide 22.5% Oxygen Balance Nitrogen EPA Protocol Standard Mixture, Size 150A Aluminum Cylinder, CGA-590

Show Full Description Hide Full Description

Airgas Part #:E03NI77E15A3964

1
2
3
4
...4
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 |

27740928AB021A30CAE84C836CA980BC