EPA Protocol Gases

If you are looking for a reliable source for your EPA protocol gases...give us a call. With today's strict requirements on sources of air pollution, we at Accurate Gas are committed to helping you comply to federal regulations for protocol testing of toxic emissions before they enter the environment. Our EPA gas mixtures are produced in accordance with the revised "EPA Traceability Protocol for Assay and Certification of Gaseous Calibration Standards." 

Our EPA Protocol Gases include: 

1. Multi-component Protocols 
2. Accuracy +/- 1% 
3. Traceability to NIST using SRM and NTRM'S 
4. Complete Documentation 

The EPA protocols that we provide come in a variety of mixtures and cylinder sizes. The most popular cylinder sizes include the 33AL, 88AL, and the 150AL. Please contact us for a quote on your EPA protocol requirements as well as your other calibration gas needs.


We offer a full line of aluminum cylinders.  Shown here are the three most commonly used aluminum cylinders for EPA Protocol Gases (Sizes: 150 AL, 88AL and 33AL).

Cylinder Size Nominal Dimensions
Diameter x Height (inches
Nominal Tare Weight (lbs.) Internal Volume Liters Cu. Ft DOT Classification
High Pressure Aluminum (Refillable)
150AL 8 X 53 52.5 29.4 140 3AL2015
88AL 7 X 38 34.5 15.7 80 3AL2216
33AL 7 X 21 18.0 06.7 30 3AL2216


High Purity High Purity Stainless Steel Stainless Steel
VICHPS 500 Single-State VICHPT 500 Two-Stage VICGHS 500 Single-Stage VICSGT 500 Cylinder Two-Stage