Size: Typically available in cylinders ranging from 10L to 50L, with smaller portable options (1L-5L) for field use.
Grade: High-purity calibration gases (99.999% or higher), often NIST-traceable or ISO-certified.
Viscosity: Minimal impact due to gaseous state, but flow rates adjusted for analyzer requirements (e.g., 0.5-2 L/min).
Buoyancy: Negligible for most applications, but considered in high-precision marine environments.
Material: Cylinders made of aluminum or stainless steel; regulators/seals use brass, PTFE, or Viton for corrosion resistance.
Pressure: Standard fills at 200-300 bar (2900-4350 psi), with low-pressure variants (50-150 bar) for specific systems.
Compatibility: Non-reactive gases (e.g., N2, CO2, CH4, SO2) tailored for marine emission analyzers (CEMS).
Temperature Range: -40°C to +60°C operational, with storage recommendations of 5°C-35°C.
Safety: DOT/IMDG-compliant valves, rupture discs, and hazard labels (e.g., flammable, toxic) as per gas composition.
Certification: Meets ISO 6141, EPA, and IMO standards for marine calibration accuracy.
