On September 8, 2020, our Specialty Gas Lab earned another year of Tier 4 accreditation from PurityPlus.
Endorsed by independent audit, Butler Gas exceeds the IWDC PurityPlus program requirements for the following tiers and specialty gas products:
Tier 1 – Pure Gases
Air
- PurityPlus Zero
- PurityPlus Extra Dry
Argon
- PurityPlus 5.0
- PurityPlus 4.8
- PurityPlus Zero 4.8
- PurityPlus Zero 4.8 (6K)
Carbon Dioxide
- PurityPlus Coleman 4.0
Helium
- PurityPlus 6.0
- PurityPlus 5.5
- PurityPlus 5.0
- PurityPlus Zero 4.8
- PurityPlus 4.7
Hydrogen
- PurityPlus 5.0
- PurityPlus Zero 4.5
- PurityPlus Zero 4.0
Nitrogen
- PurityPlus 5.0
- PurityPlus 4.8
- PurityPlus Zero 4.8
- PurityPlus O2 Free 4.8
- PurityPlus 4.8 (6K)
- PurityPlus 4.8 (3.5K)
Oxygen
- PurityPlus 5.0
- PurityPlus 4.3
- PurityPlus Zero 2.8
- PurityPlus Extra Dry 2.6
Krypton
- PurityPlus 5.0
- PurityPlus 4.5
- PurityPlus 2.0
Methane
- PurityPlus 5.0
- PurityPlus 4.0
- PurityPlus 2.0
- PurityPlus 1.3
Tier 2 – Rack-Quantity Mixtures
- Laser Mixtures
- P-5/P-10 Mixtures
- FID Fuel Mixtures
- Leak Detection Mixtures
Tier 3 – Gravimetric Mixtures
- Percent level mixtures
- PPM level mixtures
Tier 4 – Special Preparation Mixtures
- Fuel-Oxidizer mixtures
