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 Amount2
99.9975000 99.5000000

Narrow Results:

By Category
Mixed Gases (15)

Gas Grade
Portable Calibration Mix (3)

Cylinder Size
dqa test cylinder size business facet 1 (7)

dqa test cylinder size business facet 2 (7)

58DAL (2)

DQA test cyl size bus facet 1 (2)

DQA test cyl size bus facet 2 (2)

116RAL (1)

CGA Connection
C10 (2)

330 (1)

580 (1)

660 (1)

Gas Comp Amount1
25.0000000 (12)

16.0000000 (1)

0.5000000 (2)

Gas Comp 2
% AIR (7)

% NITROGEN (7)

% NEON (1)

Gas Comp Amount2
126000.0000000 (1)

13500.0000000 (1)

9900.0000000 (1)

8000.0000000 (1)

6500.0000000 (1)

5200.0000000 (1)

5000.0000000 (3)

4000.0000000 (1)

2500.0000000 (1)

2100.0000000 (1)

2000.0000000 (4)

1800.0000000 (5)

1625.0000000 (1)

1550.0000000 (1)

1500.0000000 (1)

1350.0000000 (1)

1200.0000000 (1)

975.0000000 (1)

950.0000000 (1)

900.0000000 (1)

844.0000000 (1)

800.0000000 (2)

757.0000000 (1)

741.0000000 (1)

617.0000000 (1)

516.0000000 (1)

500.0000000 (8)

485.0000000 (1)

480.0000000 (1)

465.0000000 (1)

449.2000000 (1)

425.0000000 (1)

420.0000000 (1)

415.0000000 (1)

400.0000000 (4)

377.0000000 (1)

360.0000000 (2)

350.0000000 (1)

330.0000000 (1)

300.0000000 (4)

295.0000000 (1)

275.0000000 (1)

252.0000000 (1)

250.0000000 (5)

244.0000000 (1)

240.0000000 (1)

235.0000000 (1)

230.0000000 (2)

225.0000000 (1)

206.0000000 (1)

200.0000000 (5)

193.6000000 (1)

190.0000000 (2)

185.0000000 (1)

180.0000000 (6)

171.0000000 (1)

170.0000000 (1)

165.0000000 (3)

160.0000000 (4)

150.0000000 (2)

140.0000000 (1)

137.5000000 (1)

135.0000000 (3)

129.0000000 (1)

115.0000000 (1)

110.0000000 (1)

99.9900000 (8)

99.9990000 (8)

99.9995000 (6)

99.9000000 (5)

99.9750000 (5)

99.9980000 (5)

99.99 (3)

99.9945000 (3)

99.9955000 (3)

99.9850000 (2)

99.9910000 (2)

99.9920000 (2)

99.9925000 (2)

99.9940000 (2)

99.9970000 (2)

99.9973000 (2)

99.9978000 (2)

99.9982000 (2)

99.9983000 (2)

99.9991500 (2)

99.9992000 (2)

99.9996000 (2)

99.9100000 (1)

99.9150000 (1)

99.9200000 (1)

99.9230000 (1)

99.9340000 (1)

99.9460000 (1)

99.9519000 (1)

99.9600000 (1)

99.9615000 (1)

99.9640000 (1)

99.9670000 (1)

99.9700000 (1)

99.9725000 (1)

99.9730000 (1)

99.9745000 (1)

99.9780000 (1)

99.9890000 (1)

99.9905000 (1)

99.9915000 (1)

99.9917500 (1)

99.9922000 (1)

99.9930000 (1)

99.9937000 (1)

99.9937500 (1)

99.9948000 (1)

99.9952000 (1)

99.9958000 (1)

99.9960000 (1)

99.9972500 (1)

99.9976000 (1)

99.9977500 (1)

99.9983500 (1)

99.9985000 (1)

99.9989000 (1)

99.9991000 (1)

99.9996500 (1)

99.9998000 (1)

99.9999400 (1)

99.8000000 (3)

99.8945000 (2)

99.8400000 (1)

99.8905000 (1)

99.8912000 (1)

99.8930000 (1)

99.8935000 (1)

99.8940000 (1)

99.8950000 (1)

99.8955000 (1)

99.8960000 (1)

99.8962500 (1)

99.8968000 (1)

99.8975000 (1)

99.8981500 (1)

99.8983000 (1)

99.8984500 (1)

99.8985000 (1)

99.8987500 (1)

99.8994000 (1)

99.7140000 (1)

99.7500000 (1)

99.7580000 (1)

99.7700000 (1)

99.7991000 (1)

99.6000000 (2)

99.5200000 (1)

99.4000000 (3)

99.2975000 (2)

99.1000000 (1)

99.0000000 (11)

99.0100000 (1)

99.0500000 (1)

98.9475000 (1)

98.3000000 (1)

98.0000000 (11)

97.9900000 (1)

97.5000000 (6)

97.4875000 (1)

97.4925000 (1)

97.0000000 (6)

96.5000000 (1)

96.0000000 (6)

94.9975000 (1)

94.0000000 (3)

93.7500000 (1)

93.0000000 (3)

92.5000000 (1)

92.0000000 (7)

92 (1)

91.2475000 (1)

91.0000000 (2)

90.4900000 (1)

89.5000000 (1)

88.9550000 (1)

88.5000000 (1)

88.0000000 (2)

87.9950000 (2)

87.5000000 (1)

86.5000000 (1)

86.0000000 (1)

85.5000000 (1)

84.7750000 (1)

84.0000000 (2)

83.0000000 (4)

83 (1)

82.6000000 (1)

82.0000000 (6)

81.9375000 (1)

81.9550000 (1)

81.7445000 (1)

81.0000000 (4)

80.6375000 (2)

79.4875000 (2)

79.2000000 (1)

79.1000000 (1)

79.0000000 (6)

79.0906000 (1)

78.4000000 (3)

78.2000000 (1)

78.1000000 (2)

78.0000000 (2)

77.8200000 (1)

77.5000000 (1)

77.0000000 (1)

76.9100000 (1)

76.8600000 (1)

76.0000000 (4)

74.0000000 (1)

73.0000000 (1)

69.9500000 (1)

67.0000000 (1)

66.0000000 (2)

65.4600000 (1)

65.0000000 (10)

63.0000000 (3)

62.0000000 (1)

61.0000000 (1)

58.0000000 (1)

56.5000000 (1)

56.0000000 (1)

55.0000000 (12)

54.0000000 (2)

52.0000000 (1)

51.0000000 (1)

49.0000000 (1)

48.0000000 (1)

47.5000000 (3)

47.0000000 (2)

46.0000000 (1)

44.0000000 (1)

43.0000000 (4)

42.5000000 (4)

42.0000000 (4)

38.0000000 (2)

37.5000000 (2)

37.0000000 (2)

34.0000000 (1)

33.0000000 (2)

32.0000000 (2)

31.5000000 (1)

31.0000000 (1)

28.0000000 (2)

27.5000000 (3)

27.0000000 (7)

24.0000000 (1)

23.8000000 (1)

23.4000000 (1)

23.0000000 (1)

22.5000000 (1)

22.0000000 (3)

21.2500000 (1)

20.9000000 (7)

19.0000000 (1)

18.9000000 (1)

18.0000000 (14)

18 (1)

17.5000000 (5)

17.0000000 (6)

16.5000000 (1)

16.0000000 (8)

15.6000000 (1)

14.0000000 (5)

13.7500000 (1)

13.0000000 (1)

12.5000000 (5)

11.0000000 (5)

10.5000000 (1)

9.5000000 (3)

8.5000000 (4)

7.5000000 (8)

7.0000000 (11)

6.2500000 (1)

5.5000000 (10)

5.4000000 (1)

4.5000000 (4)

4.4000000 (1)

3.7000000 (1)

3.7500000 (1)

3.5000000 (2)

3.4000000 (1)

2.8000000 (1)

2.6000000 (1)

2.2000000 (1)

2.1000000 (1)

1.7000000 (5)

1.5000000 (6)

1.4500000 (2)

1.3500000 (1)

1.1000000 (3)

1.0500000 (1)

0.9000000 (1)

0.9500000 (1)

0.8000000 (1)

0.8500000 (1)

0.7000000 (1)

0.7500000 (1)

0.6000000 (3)

0.4000000 (12)

0.4500000 (1)

0.3000000 (6)

0.3500000 (1)

0.3900000 (1)

0.2500000 (1)

0.2700000 (1)

0.2800000 (1)

0.1050000 (2)

0.1000000 (1)

0.1500000 (1)

0.0050000 (1)

0.0100000 (1)

0.0800000 (1)

Gas Comp 3
PPM NITRIC OXIDE (1)

Gas Comp Amount3
9.0000000 (1)

Compare Products Up to 4

Gases

Sort by:

E02NI99E15A0129

25PPM Nitric Oxide Balance Nitrogen EPA Protocol Standard Mixture, Size 150A Aluminum Cylinder, CGA-660

25PPM Nitric Oxide Balance Nitrogen EPA Protocol Standard Mixture, Size 150A Aluminum Cylinder, CGA-660

Show Full Description Hide Full Description

Compare

25PPM Nitric Oxide Balance Nitrogen EPA Protocol Standard Mixture, Size 150A Aluminum Cylinder, CGA-660

25PPM Nitric Oxide Balance Nitrogen EPA Protocol Standard Mixture, Size 150A Aluminum Cylinder, CGA-660

25PPM Nitric Oxide Balance Nitrogen EPA Protocol Standard Mixture, Size 150A Aluminum Cylinder, CGA-660

Show Full Description Hide Full Description

Airgas Part #:E02NI99E15A0129

E03NI99E15A0541

9PPM Nitric Oxide 16PPM Carbon Monoxide Balance Nitrogen EPA Protocol Gas Mixture, Size 150A Aluminum Cylinder, CGA-660

9PPM Nitric Oxide 16PPM Carbon Monoxide Balance Nitrogen EPA Protocol Gas Mixture, Size 150A Aluminum Cylinder, CGA-660

Show Full Description Hide Full Description

Compare

9PPM Nitric Oxide 16PPM Carbon Monoxide Balance Nitrogen EPA Protocol Gas Mixture, Size 150A Aluminum Cylinder, CGA-660

9PPM Nitric Oxide 16PPM Carbon Monoxide Balance Nitrogen EPA Protocol Gas Mixture, Size 150A Aluminum Cylinder, CGA-660

9PPM Nitric Oxide 16PPM Carbon Monoxide Balance Nitrogen EPA Protocol Gas Mixture, Size 150A Aluminum Cylinder, CGA-660

Show Full Description Hide Full Description

Airgas Part #:E03NI99E15A0541

X02NI99CP58H821

25PPM Hydrogen Chloride Balance Nitrogen Calibration Gas, Size 58DAL Disposable Aluminum Cylinder, CGA-C10

25PPM Hydrogen Chloride Balance Nitrogen Calibration Gas, Size 58DAL Disposable Aluminum Cylinder, CGA-C10

Show Full Description Hide Full Description

Compare

25PPM Hydrogen Chloride Balance Nitrogen Calibration Gas, Size 58DAL Disposable Aluminum Cylinder, CGA-C10

25PPM Hydrogen Chloride Balance Nitrogen Calibration Gas, Size 58DAL Disposable Aluminum Cylinder, CGA-C10

25PPM Hydrogen Chloride Balance Nitrogen Calibration Gas, Size 58DAL Disposable Aluminum Cylinder, CGA-C10

Show Full Description Hide Full Description

Airgas Part #:X02NI99CP58H821

E02NI99E15A0047

25PPM Nitric Oxide Balance Nitrogen EPA Protocol Standard Mixture, Size 150A Aluminum Cylinder, CGA-660

25PPM Nitric Oxide Balance Nitrogen EPA Protocol Standard Mixture, Size 150A Aluminum Cylinder, CGA-660

Show Full Description Hide Full Description

Compare

25PPM Nitric Oxide Balance Nitrogen EPA Protocol Standard Mixture, Size 150A Aluminum Cylinder, CGA-660

25PPM Nitric Oxide Balance Nitrogen EPA Protocol Standard Mixture, Size 150A Aluminum Cylinder, CGA-660

25PPM Nitric Oxide Balance Nitrogen EPA Protocol Standard Mixture, Size 150A Aluminum Cylinder, CGA-660

Show Full Description Hide Full Description

Airgas Part #:E02NI99E15A0047

X02NE99C30058N4

.5% Argon Balance Neon Certified Standard Mixture, Size 300 Cylinder, CGA-580

.5% Argon Balance Neon Certified Standard Mixture, Size 300 Cylinder, CGA-580

Show Full Description Hide Full Description

Compare

.5% Argon Balance Neon Certified Standard Mixture, Size 300 Cylinder, CGA-580

.5% Argon Balance Neon Certified Standard Mixture, Size 300 Cylinder, CGA-580

.5% Argon Balance Neon Certified Standard Mixture, Size 300 Cylinder, CGA-580

Show Full Description Hide Full Description

Airgas Part #:X02NE99C30058N4

NI HY.5300

Nitrogen 99.5 Hy 0.5 Industrial-mix CGA-350

Nitrogen 99.5 Hy 0.5 Industrial-mix CGA-350

Show Full Description Hide Full Description

Compare

Nitrogen 99.5 Hy 0.5 Industrial-mix CGA-350

Nitrogen 99.5 Hy 0.5 Industrial-mix CGA-350

Nitrogen 99.5 Hy 0.5 Industrial-mix CGA-350

Show Full Description Hide Full Description

Airgas Part #:NI HY.5300

X02NI99CP1154Z6

25PPM Hydrogen Sulfide Balance Nitrogen Certified Standard Calibration Mixture, Size 116 DAL Aluminum Cylinder, CGA-C10

25PPM Hydrogen Sulfide Balance Nitrogen Certified Standard Calibration Mixture, Size 116 DAL Aluminum Cylinder, CGA-C10

Show Full Description Hide Full Description

Compare

25PPM Hydrogen Sulfide Balance Nitrogen Certified Standard Calibration Mixture, Size 116 DAL Aluminum Cylinder, CGA-C10

25PPM Hydrogen Sulfide Balance Nitrogen Certified Standard Calibration Mixture, Size 116 DAL Aluminum Cylinder, CGA-C10

25PPM Hydrogen Sulfide Balance Nitrogen Certified Standard Calibration Mixture, Size 116 DAL Aluminum Cylinder, CGA-C10

Show Full Description Hide Full Description

Airgas Part #:X02NI99CP1154Z6

X02AI99C15AJ626

Ct 25PPM Hydrogen Sulfide Balance Air Size 150A Certified Standard-spec CGA 330

Ct 25PPM Hydrogen Sulfide Balance Air Size 150A Certified Standard-spec CGA 330

Show Full Description Hide Full Description

Compare

Ct 25PPM Hydrogen Sulfide Balance Air Size 150A Certified Standard-spec CGA 330

Ct 25PPM Hydrogen Sulfide Balance Air Size 150A Certified Standard-spec CGA 330

Ct 25PPM Hydrogen Sulfide Balance Air Size 150A Certified Standard-spec CGA 330

Show Full Description Hide Full Description

Airgas Part #:X02AI99C15AJ626

X02NI99CA160000

25PPM Hydrogen Sulfide Balance Nitrogen Calibration Gas, Size 116RAL Aluminum Cylinder, CGA-330

25PPM Hydrogen Sulfide Balance Nitrogen Calibration Gas, Size 116RAL Aluminum Cylinder, CGA-330

Show Full Description Hide Full Description

Compare

25PPM Hydrogen Sulfide Balance Nitrogen Calibration Gas, Size 116RAL Aluminum Cylinder, CGA-330

25PPM Hydrogen Sulfide Balance Nitrogen Calibration Gas, Size 116RAL Aluminum Cylinder, CGA-330

25PPM Hydrogen Sulfide Balance Nitrogen Calibration Gas, Size 116RAL Aluminum Cylinder, CGA-330

Show Full Description Hide Full Description

Airgas Part #:X02NI99CA160000

X02AI99C15A1608

Ct 25PPM Hydrogen Sulfide Balance Air Size 150A Certified Standard-spec CGA 330

Ct 25PPM Hydrogen Sulfide Balance Air Size 150A Certified Standard-spec CGA 330

Show Full Description Hide Full Description

Compare

Ct 25PPM Hydrogen Sulfide Balance Air Size 150A Certified Standard-spec CGA 330

Ct 25PPM Hydrogen Sulfide Balance Air Size 150A Certified Standard-spec CGA 330

Ct 25PPM Hydrogen Sulfide Balance Air Size 150A Certified Standard-spec CGA 330

Show Full Description Hide Full Description

Airgas Part #:X02AI99C15A1608

X02AI99CP586206

25PPM Hydrogen Sulfide Balance Air Calibration Gas, Size 58DAL Disposable Aluminum Cylinder, CGA-C10

25PPM Hydrogen Sulfide Balance Air Calibration Gas, Size 58DAL Disposable Aluminum Cylinder, CGA-C10

Show Full Description Hide Full Description

Compare

25PPM Hydrogen Sulfide Balance Air Calibration Gas, Size 58DAL Disposable Aluminum Cylinder, CGA-C10

25PPM Hydrogen Sulfide Balance Air Calibration Gas, Size 58DAL Disposable Aluminum Cylinder, CGA-C10

25PPM Hydrogen Sulfide Balance Air Calibration Gas, Size 58DAL Disposable Aluminum Cylinder, CGA-C10

Show Full Description Hide Full Description

Airgas Part #:X02AI99CP586206

X02AI99C15A0011

Ct 25PPM Ammonia Balance Air Size 150A Certified Standard-spec CGA 705

Ct 25PPM Ammonia Balance Air Size 150A Certified Standard-spec CGA 705

Show Full Description Hide Full Description

Compare

Ct 25PPM Ammonia Balance Air Size 150A Certified Standard-spec CGA 705

Ct 25PPM Ammonia Balance Air Size 150A Certified Standard-spec CGA 705

Ct 25PPM Ammonia Balance Air Size 150A Certified Standard-spec CGA 705

Show Full Description Hide Full Description

Airgas Part #:X02AI99C15A0011

E02AI99E33A53L8

Ep 25PPM Nitrogen Dioxide Balance Air Size 33A Epa Protocol Standard CGA 660

Ep 25PPM Nitrogen Dioxide Balance Air Size 33A Epa Protocol Standard CGA 660

Show Full Description Hide Full Description

Compare

Ep 25PPM Nitrogen Dioxide Balance Air Size 33A Epa Protocol Standard CGA 660

Ep 25PPM Nitrogen Dioxide Balance Air Size 33A Epa Protocol Standard CGA 660

Ep 25PPM Nitrogen Dioxide Balance Air Size 33A Epa Protocol Standard CGA 660

Show Full Description Hide Full Description

Airgas Part #:E02AI99E33A53L8

X02AI99P15A6576

Ps 25PPM Hydrogen Sulfide Balance Air Size 150A Primary Standard CGA 330

Ps 25PPM Hydrogen Sulfide Balance Air Size 150A Primary Standard CGA 330

Show Full Description Hide Full Description

Compare

Ps 25PPM Hydrogen Sulfide Balance Air Size 150A Primary Standard CGA 330

Ps 25PPM Hydrogen Sulfide Balance Air Size 150A Primary Standard CGA 330

Ps 25PPM Hydrogen Sulfide Balance Air Size 150A Primary Standard CGA 330

Show Full Description Hide Full Description

Airgas Part #:X02AI99P15A6576

E02AI99E15ACG00

Ep 25PPM Nitrogen Dioxide Balance Air Size 150A Epa Protocol Standard CGA 660 Nitrogen Dioxide 25-30PPM Custom Mix

Ep 25PPM Nitrogen Dioxide Balance Air Size 150A Epa Protocol Standard CGA 660 Nitrogen Dioxide 25-30PPM Custom Mix

Show Full Description Hide Full Description

Compare

Ep 25PPM Nitrogen Dioxide Balance Air Size 150A Epa Protocol Standard CGA 660 Nitrogen Dioxide 25-30PPM Custom Mix

Ep 25PPM Nitrogen Dioxide Balance Air Size 150A Epa Protocol Standard CGA 660 Nitrogen Dioxide 25-30PPM Custom Mix

Ep 25PPM Nitrogen Dioxide Balance Air Size 150A Epa Protocol Standard CGA 660 Nitrogen Dioxide 25-30PPM Custom Mix

Show Full Description Hide Full Description

Airgas Part #:E02AI99E15ACG00

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 |

227C54519A817D2835434F51D7F3D785