Product Description
Calgaz | 34L-421 | X05NI79CA3459B2 | 100 PPM CO | 2.5% (50% LEL) Methane | 25 PPM HSS | 18.0% O2 | Balance N2 | 34 Liter | connection | Certificate NIST | Made in the USA
The Calgaz 34L-421 is an industry-standard 4-gas (quad-gas) calibration mixture containing 100 ppm Carbon Monoxide, 2.5% Methane (50% LEL), 25 ppm Hydrogen Sulfide, and 18.0% Oxygen balanced in Nitrogen. Housed in an ultra-portable 34-liter aluminum cylinder (Calgaz 2AL) with a standard C-10 valve connection, this blend provides span calibration and bump test compliance for personal multi-gas detectors across confined space and industrial safety environments.
Product Specifications
- Part Number / SKU: 34L-421
- UPC / Product Code: X05NI79CA3459B2
- Gas Concentrations:
- Carbon Monoxide (CO): 100 PPM
- Methane (CH4): 2.5% Volume (50% LEL)
- Hydrogen Sulfide (H2S): 25 PPM
- Oxygen (O2): 18.0% Volume
- Balance: High-Purity Nitrogen (N2)
- Cylinder Capacity: 34 Liters (Calgaz 2AL)
- Cylinder Material: Seamless Aluminum (Corrosion-resistant for reactive H2S)
- Valve Outlet Fitting: Standard C-10 Threaded Connection (5/8"-18 UNF)
- Working Pressure: 500 psig (34.5 bar)
- Shelf Life: 24 Months
- Weight: 1.5 LBS
Key Applications & Instrument Compatibility
- Multi-Gas Monitor Calibration: Formulated for simultaneous 4-sensor calibration and functional bump testing across standard 4-gas confined space monitors.
- Detector Brand Compatibility: Direct drop-in standard for major manufacturer instruments requiring the "421" blend profile, including Honeywell / BW Technologies (GasAlertMicroClip, Quattro, Max XT II), Industrial Scientific (Ventis MX4, MX6 iBrid), MSA (ALTAIR 4XR / 5X), RKI Instruments (GX-2009, GX-2012, GX-3R), and Dräger (X-am series).
- Regulator Match: Compatible with all standard C-10 fixed-flow regulators (0.25 LPM, 0.5 LPM, 1.0 LPM like Calgaz Model 715) and on-demand flow regulators (ODR / DFR-2000 series) for automated docking stations.
- Traceability & Certification: Gravimetrically blended each cylinder is individually lot-numbered and accompanied by an NIST-traceable Certificate of Analysis (COA) available via QR code on the Label.
Hazmat Transport Notice: Compressed reactive gas cylinders are classified as Dangerous Goods / Hazardous Materials
