Environmental Testing

Our Environmental Gas standards ensure environmental safety and meet regulatory requirements.

Environmental gases to meet the unique needs in the following areas:

  • Standards for CEM and Stack Gas Monitoring
  • Automotive Exhaust Emission Standards
  • Ambient Air Monitoring Standards
  • Low Level NO Mixtures
  • EPA Protocol Gases
  • Confined Space Entry
  • Soil Remediation Calibration Standards

The Clean Air Act sets numerical limits on the concentrations of a basic group of air pollutants and provides reporting and enforcement mechanisms. The production process for these gases is exact and time consuming. PurityPlus® Specialty Gases by Weldstar has the cylinder preparation processes and SOPs in place to ensure both full EPA compliance, and availability you can count on.

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PurityPlus by Weldstar
Contact Information

1100 Hamilton Ave
University Park, Illinois 60484

Phone – 708-627-1007

Hours of Operation
Monday-Friday – 7:30am to 4:30pm

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