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
Gas Comp Amount1
20.9000000 79.0000000

Narrow Results:

By Category
Mixed Gases (10)

Gas Grade
Portable Calibration Mix (1)

Cylinder Size
dqa test cylinder size business facet 1 (4)

dqa test cylinder size business facet 2 (4)

DQA test cyl size bus facet 1 (2)

DQA test cyl size bus facet 2 (2)

business facet 1 (2)

business facet 2 (2)

DQA test - cylinder size business facet name (1)

DQA tk test (1)

QA test -businessfacet value (1)

CGA Connection
590 (5)

C10 (1)

Gas Comp Amount1
9900.0000000 (1)

4800.0000000 (1)

4000.0000000 (1)

2750.0000000 (1)

2500.0000000 (1)

2300.0000000 (1)

2000.0000000 (2)

1800.0000000 (2)

1600.0000000 (1)

930.0000000 (1)

900.0000000 (2)

850.0000000 (1)

800.0000000 (1)

720.0000000 (1)

500.0000000 (2)

481.0000000 (1)

450.0000000 (2)

400.0000000 (1)

385.0000000 (2)

360.0000000 (2)

300.0000000 (1)

275.0000000 (2)

270.0000000 (2)

255.0000000 (1)

250.0000000 (4)

200.0000000 (1)

180.0000000 (4)

170.0000000 (1)

150.0000000 (3)

125.0000000 (1)

110.0000000 (2)

99.9940000 (8)

99.9500000 (7)

99.9000000 (6)

99.9960000 (6)

99.9980000 (6)

99.9991000 (6)

99.9700000 (5)

99.9910000 (5)

99.9920000 (5)

99.9989000 (5)

99.9996000 (5)

99.9800000 (4)

99.9945000 (4)

99.9955000 (4)

99.9994500 (4)

99.9999000 (4)

99.9600000 (3)

99.9820000 (3)

99.9835000 (3)

99.9880000 (3)

99.9915000 (3)

99.9925000 (3)

99.9959000 (3)

99.9970000 (3)

99.9973000 (3)

99.9987500 (3)

99.9994000 (3)

99.9999900 (3)

99.9650000 (2)

99.9705000 (2)

99.9750000 (2)

99.9770000 (2)

99.9865000 (2)

99.9935000 (2)

99.9936000 (2)

99.9944000 (2)

99.9946000 (2)

99.9957500 (2)

99.9972000 (2)

99.9972500 (2)

99.9974000 (2)

99.9982000 (2)

99.9983000 (2)

99.9985000 (2)

99.9988000 (2)

99.9992000 (2)

99.9993500 (2)

99.9995900 (2)

99.9997000 (2)

99.9997500 (2)

99.9998000 (2)

99.9998100 (2)

99.9999600 (2)

99.9999700 (2)

99.9999800 (2)

99.9999850 (2)

99.9010000 (1)

99.9020000 (1)

99.9025000 (1)

99.9075000 (1)

99.9156000 (1)

99.9200000 (1)

99.9243000 (1)

99.9259000 (1)

99.9312500 (1)

99.9320000 (1)

99.9383000 (1)

99.9394000 (1)

99.9400000 (1)

99.9484000 (1)

99.9515000 (1)

99.9520000 (1)

99.9535000 (1)

99.9550800 (1)

99.9585000 (1)

99.9623000 (1)

99.9630000 (1)

99.9640000 (1)

99.9670000 (1)

99.9688000 (1)

99.9730000 (1)

99.9748000 (1)

99.9756000 (1)

99.9760000 (1)

99.9765000 (1)

99.9775000 (1)

99.9794000 (1)

99.9806400 (1)

99.9810000 (1)

99.9815000 (1)

99.9829000 (1)

99.9830000 (1)

99.9839000 (1)

99.9840000 (1)

99.9860000 (1)

99.9863000 (1)

99.9885000 (1)

99.9890000 (1)

99.9895000 (1)

99.9917400 (1)

99.9926000 (1)

99.9938000 (1)

99.9953000 (1)

99.9956000 (1)

99.9957000 (1)

99.9958000 (1)

99.9961000 (1)

99.9962500 (1)

99.9963000 (1)

99.9965000 (1)

99.9968000 (1)

99.9976000 (1)

99.9981000 (1)

99.9986000 (1)

99.9991500 (1)

99.9993000 (1)

99.9993600 (1)

99.9995600 (1)

99.9996100 (1)

99.9997400 (1)

99.9998600 (1)

99.9998720 (1)

99.9998920 (1)

99.9999200 (1)

99.9999400 (1)

99.9999500 (1)

99.9999750 (1)

99.9999960 (1)

99.8980000 (3)

99.8000000 (2)

99.8110000 (2)

99.8985000 (2)

99.8988000 (2)

99.8200000 (1)

99.8375000 (1)

99.8450000 (1)

99.8500000 (1)

99.8800000 (1)

99.8900000 (1)

99.8915000 (1)

99.8918000 (1)

99.8920000 (1)

99.8925000 (1)

99.8940000 (1)

99.8950000 (1)

99.8960000 (1)

99.8962500 (1)

99.8983000 (1)

99.8989000 (1)

99.8990000 (1)

99.8990200 (1)

99.8991500 (1)

99.8994000 (1)

99.7900000 (2)

99.7000000 (1)

99.7500000 (1)

99.7950000 (1)

99.7957500 (1)

99.7987500 (1)

99.6000000 (4)

99.6155000 (1)

99.5000000 (2)

99.4000000 (3)

99.4800000 (2)

99.3065000 (1)

99.3484400 (1)

99.2000000 (1)

99.2500000 (1)

98.9000000 (1)

98.9480000 (1)

98.9500000 (1)

98.9950000 (1)

98.6500000 (2)

98.5000000 (2)

98.0100000 (1)

97.9000000 (1)

97.9990000 (1)

97.8000000 (1)

97.8900000 (1)

97.2000000 (1)

96.7300000 (1)

96.5000000 (2)

96.4950000 (1)

96.3000000 (1)

96.2500000 (1)

95.9100000 (2)

95.9200000 (1)

95.9910000 (1)

95.9984000 (1)

95.8995000 (1)

95.5500000 (1)

94.9810000 (1)

94.9944000 (1)

94.9958000 (1)

94.5000000 (5)

93.9980000 (1)

93.6700000 (1)

93.0000000 (7)

92.7500000 (1)

92.5000000 (3)

91.9200000 (1)

91.9920000 (1)

91.5000000 (3)

91.0000000 (8)

90.9580000 (1)

90.7050000 (1)

90.5000000 (1)

90.5290000 (1)

90.4900000 (1)

89.9900000 (2)

89.9840000 (1)

89.9945000 (1)

89.9950000 (1)

89.9990000 (1)

89.5000000 (3)

89.4900000 (1)

89.0000000 (3)

88.9800000 (2)

88.9500000 (1)

88.9905000 (1)

88.9950000 (1)

88.7500000 (1)

88.5000000 (2)

87.9957000 (1)

87.5000000 (2)

87.4665000 (1)

87.3865000 (1)

87.2960000 (1)

87.0000000 (2)

86.6000000 (1)

86.5000000 (1)

86.4970000 (1)

86.2470000 (1)

86.2500000 (1)

86.0000000 (7)

85.9895000 (1)

85.5000000 (1)

85.4950000 (1)

85.3540000 (1)

85.3940000 (1)

84.9900000 (3)

84.9985000 (1)

84.9990000 (1)

84.0000000 (6)

83.5420000 (2)

83.4900000 (1)

83.0000000 (8)

82.5000000 (3)

82.4900000 (1)

81.9820000 (1)

81.6200000 (1)

81.2925000 (1)

81.1000000 (1)

81.0000000 (5)

80.5000000 (1)

80.4750000 (1)

79.9900000 (2)

79.9800000 (1)

79.4900000 (2)

79.4975000 (1)

79.1000000 (5)

79.0950000 (1)

78.9400000 (1)

78.7160000 (1)

78.6000000 (1)

78.4000000 (2)

78.4895000 (1)

78.4900000 (1)

78.2000000 (2)

78.0000000 (6)

77.9900000 (1)

77.9907000 (1)

77.9945000 (1)

77.8950000 (1)

77.5000000 (2)

77.4955000 (1)

77.3200000 (1)

77.0000000 (1)

76.5000000 (2)

76.0000000 (2)

75.2400000 (1)

74.9000000 (2)

74.9500000 (1)

74.7000000 (1)

74.5000000 (1)

73.0000000 (2)

72.9940000 (1)

72.5000000 (1)

72.0000000 (2)

71.9988000 (1)

71.0000000 (1)

70.7000000 (1)

69.8500000 (1)

69.7300000 (1)

69.6000000 (3)

69.5000000 (1)

69.2200000 (1)

69.0000000 (2)

68.0000000 (6)

67.9920000 (1)

67.6000000 (1)

67.0000000 (3)

66.0000000 (7)

64.5000000 (1)

64.0000000 (2)

63.5000000 (1)

63.0000000 (7)

62.5000000 (1)

62.0000000 (2)

61.0000000 (1)

59.9826000 (1)

59.0000000 (1)

58.0000000 (4)

57.0000000 (1)

56.8000000 (1)

54.1000000 (1)

52.0000000 (6)

51.5000000 (1)

51.0000000 (1)

50 (1)

49.6000000 (1)

49.0000000 (3)

48.2000000 (1)

48.0000000 (3)

47.5000000 (1)

47.0000000 (1)

45.1000000 (1)

45.0000000 (7)

43.5000000 (1)

43.0000000 (1)

42.5000000 (1)

42.0000000 (3)

39.0000000 (1)

38.0000000 (2)

37.2000000 (1)

35.8392000 (1)

35.4392000 (1)

34.0000000 (1)

33.0000000 (2)

32.5000000 (1)

31.7000000 (1)

31.2500000 (2)

31.0000000 (1)

30.0500000 (1)

29.2000000 (1)

29.0000000 (1)

28.0000000 (3)

27.5000000 (2)

27.0000000 (2)

25 (1)

24.4696500 (1)

24.0000000 (1)

23.0000000 (3)

22.5000000 (6)

22.0000000 (4)

21.0000000 (8)

20.9400000 (2)

20.8000000 (1)

20.5000000 (1)

19.7000000 (1)

19.0000000 (1)

18.5000000 (1)

18.0000000 (9)

17.0000000 (4)

17 (1)

16.0000000 (5)

15.6000000 (1)

14.0000000 (2)

13.7500000 (1)

13.5000000 (2)

13.0000000 (1)

12.0000000 (6)

11.5000000 (2)

11.0000000 (2)

10.5000000 (2)

10 (1)

9.0000000 (6)

8.5000000 (2)

8 (1)

7.5000000 (2)

7.0000000 (8)

6.2500000 (1)

6.0000000 (6)

5.5000000 (3)

5 (1)

4.5000000 (1)

3.5000000 (2)

3.4000000 (2)

3.1400000 (1)

3.0000000 (7)

1.7000000 (2)

1.2500000 (1)

0.9000000 (1)

0.9500000 (1)

0.7000000 (2)

0.6000000 (3)

0.6100000 (1)

0.5000000 (3)

0.4000000 (3)

0.4200000 (1)

0.3000000 (8)

0.3500000 (1)

0.3750000 (1)

0.2000000 (1)

0.1000000 (2)

(1)

Gas Comp 2
% OXYGEN (7)

% NITROGEN (2)

PPM NITROGEN DIOXIDE (1)

Gas Comp Amount2
100.0000000 (1)

79.1000000 (1)

79.0906000 (1)

21.0000000 (7)

Gas Comp 3
% NITROGEN (1)

PPM CARBON MONOXIDE (1)

Gas Comp Amount3
94.0000000 (1)

79.0900000 (1)

Compare Products Up to 4

Gases

Sort by:

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

X02NI79CP106146

20.9% Oxygen Balance Nitrogen Calibration Gas, Size 103DS Disposable Steel Cylinder, CGA-C10

20.9% Oxygen Balance Nitrogen Calibration Gas, Size 103DS Disposable Steel Cylinder, CGA-C10

Show Full Description Hide Full Description

Compare

20.9% Oxygen Balance Nitrogen Calibration Gas, Size 103DS Disposable Steel Cylinder, CGA-C10

20.9% Oxygen Balance Nitrogen Calibration Gas, Size 103DS Disposable Steel Cylinder, CGA-C10

20.9% Oxygen Balance Nitrogen Calibration Gas, Size 103DS Disposable Steel Cylinder, CGA-C10

Show Full Description Hide Full Description

Airgas Part #:X02NI79CP106146

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

X02NI79C2001127

21% Oxygen Balance Nitrogen Certified Standard Mixture, Size 200 Cylinder, CGA-590

21% Oxygen Balance Nitrogen Certified Standard Mixture, Size 200 Cylinder, CGA-590

Show Full Description Hide Full Description

Compare

21% Oxygen Balance Nitrogen Certified Standard Mixture, Size 200 Cylinder, CGA-590

21% Oxygen Balance Nitrogen Certified Standard Mixture, Size 200 Cylinder, CGA-590

21% Oxygen Balance Nitrogen Certified Standard Mixture, Size 200 Cylinder, CGA-590

Show Full Description Hide Full Description

Airgas Part #:X02NI79C2001127

E03NI79E15A2806

94PPM Carbon Monoxide 20.9% Oxygen Balance Nitrogen EPA Protocol Standard Mixture, Size 150A Aluminum Cylinder, CGA-590

94PPM Carbon Monoxide 20.9% Oxygen Balance Nitrogen EPA Protocol Standard Mixture, Size 150A Aluminum Cylinder, CGA-590

Show Full Description Hide Full Description

Compare

94PPM Carbon Monoxide 20.9% Oxygen Balance Nitrogen EPA Protocol Standard Mixture, Size 150A Aluminum Cylinder, CGA-590

94PPM Carbon Monoxide 20.9% Oxygen Balance Nitrogen EPA Protocol Standard Mixture, Size 150A Aluminum Cylinder, CGA-590

94PPM Carbon Monoxide 20.9% Oxygen Balance Nitrogen EPA Protocol Standard Mixture, Size 150A Aluminum Cylinder, CGA-590

Show Full Description Hide Full Description

Airgas Part #:E03NI79E15A2806

X02HE79C300D221

21% Oxygen Balance Helium Certified Standard Mixture, Size 300 Cylinder, CGA-590

21% Oxygen Balance Helium Certified Standard Mixture, Size 300 Cylinder, CGA-590

Show Full Description Hide Full Description

Compare

21% Oxygen Balance Helium Certified Standard Mixture, Size 300 Cylinder, CGA-590

21% Oxygen Balance Helium Certified Standard Mixture, Size 300 Cylinder, CGA-590

21% Oxygen Balance Helium Certified Standard Mixture, Size 300 Cylinder, CGA-590

Show Full Description Hide Full Description

Airgas Part #:X02HE79C300D221

HE DVGOX21C300

Diving Grade 21% Oxygen Balance Helium Size 300 Diving Grade-ind Mix CGA-590 Oxygen Diving Grade Helium Diving Grade

Diving Grade 21% Oxygen Balance Helium Size 300 Diving Grade-ind Mix CGA-590 Oxygen Diving Grade Helium Diving Grade

Show Full Description Hide Full Description

Compare

Diving Grade 21% Oxygen Balance Helium Size 300 Diving Grade-ind Mix CGA-590 Oxygen Diving Grade Helium Diving Grade

Diving Grade 21% Oxygen Balance Helium Size 300 Diving Grade-ind Mix CGA-590 Oxygen Diving Grade Helium Diving Grade

Diving Grade 21% Oxygen Balance Helium Size 300 Diving Grade-ind Mix CGA-590 Oxygen Diving Grade Helium Diving Grade

Show Full Description Hide Full Description

Airgas Part #:HE DVGOX21C300

NI OX21200C

Industrial 21% Oxygen Balance Nitrogen Size 200 Industrial-mix Customer Owned CGA-590

Industrial 21% Oxygen Balance Nitrogen Size 200 Industrial-mix Customer Owned CGA-590

Show Full Description Hide Full Description

Compare

Industrial 21% Oxygen Balance Nitrogen Size 200 Industrial-mix Customer Owned CGA-590

Industrial 21% Oxygen Balance Nitrogen Size 200 Industrial-mix Customer Owned CGA-590

Industrial 21% Oxygen Balance Nitrogen Size 200 Industrial-mix Customer Owned CGA-590

Show Full Description Hide Full Description

Airgas Part #:NI OX21200C

HE DVGOX21C23

Diving Grade 21% Oxygen Balance Helium Size 300 12PK

Diving Grade 21% Oxygen Balance Helium Size 300 12PK

Show Full Description Hide Full Description

Compare

Diving Grade 21% Oxygen Balance Helium Size 300 12PK

Diving Grade 21% Oxygen Balance Helium Size 300 12PK

Diving Grade 21% Oxygen Balance Helium Size 300 12PK

Show Full Description Hide Full Description

Airgas Part #:HE DVGOX21C23

E03NI79E15A74K8

Ep 100PPM Nitrogen Dioxide 20.9% Oxygen Balance Nitrogen Size 150A Epa Protocol Standard CGA 660

Ep 100PPM Nitrogen Dioxide 20.9% Oxygen Balance Nitrogen Size 150A Epa Protocol Standard CGA 660

Show Full Description Hide Full Description

Compare

Ep 100PPM Nitrogen Dioxide 20.9% Oxygen Balance Nitrogen Size 150A Epa Protocol Standard CGA 660

Ep 100PPM Nitrogen Dioxide 20.9% Oxygen Balance Nitrogen Size 150A Epa Protocol Standard CGA 660

Ep 100PPM Nitrogen Dioxide 20.9% Oxygen Balance Nitrogen Size 150A Epa Protocol Standard CGA 660

Show Full Description Hide Full Description

Airgas Part #:E03NI79E15A74K8

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 |

AC1FC9AA42F64033D8C80EC3A5647C98