Used for confined space work areas/entry as well as docking stations. Calibration gas cylinders are portable, use little space and are easy to handle. They provide a convenient and cost-effective way to utilize calibration gas mixtures. Available in non-refillable steel and aluminum. Steel cylinders are economical for non-reactive gas mixtures as well as pure gases such as argon, helium and nitrogen. Steel cylinder sizes are available in 17 L, 34 L, 103 L, 221 L and 552 L. Aluminum cylinders offer industry leading stability for reactive mixtures in a lightweight, portable package. Typical components may include ammonia, chlorine, hydrogen cyanide, hydrogen chloride, hydrogen sulfide, nitric oxide, nitrogen dioxide, sulfur dioxide and phosphine. Aluminum cylinder sizes are available in 34 L, 58 L, 74 L, and 116 L. Both aluminum and steel cylinders can be conveniently transported in a carrying case. A 10 L aerosol cylinder is offered for convenient "bump testing" of equipment as well as the DOT-Approved refillable aluminum ecosmart cylinders. Sizes include 34 L, 44 L, 58 L, 66 L, 74 L and 116 L. Many mixtures available upon request.