WSM manufactures calibration gas cylinders at our ISO 17025 & 17034 accredited laboratory. Calibration gas for gas detectors: 4-gas mix, H₂S, CO, LEL, O₂, bump test gas, span gas, and EPA protocol gas. 28,000+ part numbers with 184+ competitor cross-references. Certified. Ships 24-48 hours from stock.
Manufactured at Our Lab
Match Any Competitor Part #
Standard Mixtures
ISO 17025 · 17034 · EPA PGVP
Every calibration gas mixture manufactured, analyzed, and certified at our ISO-accredited laboratory in Miami. Full COA with every cylinder.
CO / H₂S / LEL / O₂ — the industry standard for portable gas detector calibration. Also 3-gas, 5-gas, and custom multi-gas blends.
Quick-response bump test gas for daily detector verification. Span calibration gas for full detector calibration per manufacturer specs.
EPA Protocol gases certified under the Protocol Gas Verification Program. NIST-traceable for CEMS and emissions compliance (40 CFR Part 72).
H₂S, CO, SO₂, NO, NO₂, HCl, Cl₂, NH₃, LEL (CH₄, C₃H₈, C₄H₁₀), O₂ depletion — any single gas at any concentration.
LEL calibration blends: methane, propane, pentane, isobutane. FID fuel gas (H₂/He, H₂/N₂). Natural gas simulation blends for utilities.
Your brand, our certified gas. Full private label program for distributors — same accredited quality, your branding. Contact us for details.
Visit our dedicated calibration gas website for the complete product catalog, competitor cross-reference tool, instant quoting, and distributor resources.
Full catalog · Cross-reference tool · Instant quoting · Distributor portal
For custom quotes, bulk orders, or private label inquiries — contact our team directly.
(305) 455-1220 · sales@wsmsupplier.com
WSM Specialty Gases · 3535 NW 60th St, Miami FL 33142 · ISO 17025 & 17034 · EPA PGVP