Product Description
Calgaz 34L-428-20 | 4-Gas Mix 34L Aluminum Cylinder | C-10 | X05NI83CA340008
Calgaz 34L-428-20 Quad Gas Calibration Cylinder | X05NI83CA340008
4-Gas Mixture: 60 PPM Carbon Monoxide (CO), 1.45% Methane (CH₄ / 58% LEL Pentane Simulant), 20 PPM Hydrogen Sulfide (H₂S), 15.0% Oxygen (O₂), Balance Nitrogen (N₂)
The Calgaz 34L-428-20 is an industry-standard 4-gas calibration standard packaged in a compact, portable 34-liter aluminum cylinder. Engineered for bump testing and field span calibration of handheld and fixed multi-gas monitors across all major manufacturers (including MSA, Industrial Scientific, Honeywell / BW Technologies, and RKI Instruments).
Supplied with an individual NIST-traceable Certificate of Analysis available via QR code on Label.
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number / SKU | 34L-428-20 |
| Airgas CRM Cross-Ref | X05NI83CA340008 |
| Carbon Monoxide (CO) | 60 PPM |
| Methane (CH₄) | 1.45% Vol (29% LEL CH₄ / 58% LEL Pentane Equivalent) |
| Hydrogen Sulfide (H₂S) | 20 PPM |
| Oxygen (O₂) | 15.0% Vol |
| Balance Gas | Nitrogen (N₂) |
| Cylinder Volume / Capacity | 34 Liters (1.2 cu. ft.) |
| Cylinder Material | Seamless Aluminum (Non-refillable / Disposable) |
| Valve Outlet Connection | C-10 (5/8"-18 UNF Threaded Fitting) |
| Working Pressure | 500 psig (34.5 bar) |
| Dimensions & Weight | 11.1" x 3.0" (282 mm x 76 mm) | ~1.5 lbs (0.68 kg) |
| Shelf Life / Stability | 24 Months (Reactive blend containing H₂S) |
| Traceability | NIST Traceable Standards with Batch Analysis Certificate |
| Country of Origin | Made in the USA |
Applications & Regulator Compatibility
- Regulator Match: Fits any standard C-10 connection regulator, including fixed flow regulators (0.5 LPM or 1.0 LPM) and demand flow regulators (DFR) for pumped instruments and automated docking stations.
- Universal Detector Use: Fully compatible with all major portable 4-gas and multi-gas detectors programmed for standard OSHA quad-gas verification (MSA Altair 4XR/5X, Industrial Scientific Ventis MX4/MX6, BW GasAlertMicroClip, Honeywell BW Ultra, RKI GX-2009/GX-3R).
- Pentane Simulant Verification: Formulated with 1.45% Methane to accurately replicate 58% LEL Pentane response factors on catalytic bead LEL sensors while preserving sensor longevity.
- Safe Aluminum Build: Passivated internal aluminum wall chemistry prevents reactive H₂S decay, guaranteeing accurate concentration throughout the 24-month service life.
Calgaz 34L-428-20 (Cross-Reference / Airgas Part Number X05NI83CA340008) is a certified 4-gas calibration standard packaged in a portable 34-liter aluminum disposable cylinder with a C-10 (5/8"-18 UNF) threaded outlet. The blend consists of 60 PPM Carbon Monoxide (CO), 1.45% Methane (CH₄) (representing 58% LEL Pentane simulant), 20 PPM Hydrogen Sulfide (H₂S), and 15.0% Oxygen (O₂) balanced in Nitrogen (N₂). Each cylinder is made in the USA, carries a 24-month stability shelf life, and includes an individually numbered NIST-traceable Certificate of Analysis. It is compatible with all multi-gas bump test stations and monitors, including MSA Altair, Honeywell BW, and Industrial Scientific detectors.
