WSM is an ISO-accredited specialty gas laboratory in Miami, Florida. We manufacture certified gas mixtures, EPA Protocol gases, NIST-traceable standards, ultra high purity gases, and supply helium for MRI machines nationwide. Every calibration gas cylinder is produced, analyzed, and certified in-house.
The only laboratory in South Florida with ISO/IEC 17025, ISO 17034, and EPA PGVP certifications simultaneously. We manufacture certified gas mixtures, EPA protocol gases, and NIST-traceable gas standards — all in-house.
From EPA Protocol standards to corrosive reactive blends — produced and certified under the highest international accreditations.
Every mixture analyzed with NIST-traceable calibrated instruments:

WSM is a trusted liquid helium supplier for MRI facilities nationwide. We deliver liquid helium for MRI systems in pre-chilled liquid helium dewars (250L & 500L) with full on-site transfer service by trained cryogenic technicians. Scheduled and emergency fills across all 50 U.S. states and Latin America.
Five product lines from a single ISO-accredited source — specialty lab, helium, UHP gases, calibration, and bulk supply.
Liquid helium for MRI magnet cooling (4.2K). Pre-chilled dewars, on-site transfer service, nationwide delivery. Also serves NMR, aerospace, and semiconductor cooling applications.
Gaseous helium in cylinders from 200-300 SCF. Standard pressure (2,200 PSI, CGA 580) and ultra high pressure (3.5K-6K PSI, CGA 677). Leak detection, welding, GC carrier gas.
Full catalog of atmospheric, noble, reactive, hydrocarbon, and electronic specialty gases. Available in standard and ultra high pressure configurations.
Calibration gas for gas detectors: 4-gas mix, bump test gas, EPA protocol gas, single gas standards. 184+ competitor cross-references. Full catalog at wsmcalibrationgas.com.
Bulk liquid nitrogen, oxygen, argon, and CO₂. Bulk gas delivery via ISO tanks to Latin America from Miami. Cryogenic repair, ISO tank certification, HAZMAT compliant.
EPA Protocol, sulfur (SO₂, H₂S, COS, Mercaptans), multi-component (2–12+ gases at ppm/ppb). Laser gas mixtures, medical gas mixtures (USP), gas chromatography carrier gas.
Manufactured at our ISO-accredited lab. Response within 24h.