<img alt="" src="https://secure.smart-enterprise-365.com/742937.png" style="display:none;">





Weldcoa is back to offering in-person training in Specialty Gas Filling at Weldcoa's new Innovation Center (aka the WIC). The WIC is a completely functioning cylinder gas filling facility with modern spec gas lab and analytical equipment for quality training and education. The programs focus on all aspects of specialty gas filling and testing, developing skill sets through both classroom and hands-on instruction. Participants in the programs can receive certification in Specialty Gas Mixing and Gas Chromatography.

This off-the-job training service is provided by Weldcoa and AsteRisk. Both companies have worked closely together, supporting the compressed gas industry for decades.

  • Off-the-job training provides a safe, distraction- and stress-free environment for employees to focus and learn.                                         
  • Attendees gain the opportunity to learn from everyone's experiences. For example, a colleague may discuss their challenges at work and discover new solutions from their colleagues. Therefore, this type of training can provide you with helpful tips you may need or may not have previously considered if it weren't for input from other sources.                                                                                                                                                                                                                                                                                                                            
  • This method of training is a big boost of employee confidence! When you're more knowledgeable about your role, it helps you feel more confident about your abilities. This can lead to an increase in happiness, motivation and productivity.

The class was great.  Learned a lot, while still having some fun.  Seeing and hearing your innovative ideas will have us thinking for a while." Tom Klemz, Vice President of Bakers Gas and Welding Supplies, Inc.

The class wasy very useful and hands on with the type of work I deal with on a daily basis."Anthony Cyr, Analytical Chemist for Red Ball Technical Gas Services

This class offers a one-of-kind and unique learning experience. The classroom lectures coupled with the hands-on learning is beneficial to beginners and seasoned veterans alike. The equipment and facilities make this a must-have training for anyone desiring to be competitive in the compressed gas industry.  Not only, did I receive top-notch instruction and training, but it also provided a unique networking opportunity to create relationships with other personnel from other gas companies.Kyle Barton, Knoxville, TN Plant Manager for Holston Gases 




This course is designed for specialty gas mixture personnel who need the basics of making Specialty Gas mixtures. Prior lab experience is helpful but not required. This is a 2 1/2-day lecture with hands-on lab exercises.

Topics include:

  • Mixture calculations: manual and automated methods
  • Cylinder selection: CGA connections, materials, test dates, etc.
  • Pre-fill inspection: DOT requirements, cylinder damage, safety considerations, etc.
  • Cylinder preparation: general and special requirements for certain gases
  • Safety precautions: OSHA, DOT and FDA issues
  • Partial pressure fill techniques: pressure/temperature, confirmation, and compressibility adjustments
  • Gravimetric fill techniques: mother mixes, base mixes, sample bombs/loops for PPM mixes
  • Post fill procedures
  • Mixture vs. analytical ranges
  • Analytical accuracy vs. precision
  • Scale calibration
  • Low PPM mixture techniques
  • Purity considerations for critical mixtures

What is not covered: This course does not cover fuel/oxidizer mixtures, toxic/corrosive mixtures or EPA protocol mixtures. Please contact Weldcoa for additional information and schedules for these advanced application.


This course is designed for specialty gas mixture personnel who are already comfortable making gravimetric mixtures and who need advanced training.

Topics include:

  • Advanced mixture strategies and case studies
  • Cylinder passivation
  • Optimizing base/pre-mixtures
  • Advanced gravimetric fill techniques (micro cylinders, loops, syringes)
  • Hydrocarbon blends
  • Liquid blends
  • Fuel/oxidizer mixtures
  • Other potentially reactive mixtures
  • Mixture stability




This course is designed for personnel who need to use a gas chromatograph. Prior lab experience is helpful but not required. This is a 2 1/2-day lecture with hands-on lab exercises.

Topics include:

  • Why and how GCS work
  • GC components: gas systems, sample valves, columns, detectors, electronics, etc.
  • Column selection: when to use molecular sieve, poropak, CTR, hayesep, etc.
  • Integrators: operation, programming and maintenance
  • Detectors: thermal conductivity, discharge ionization, flame ionization
  • Difficult analyses: argon in oxygen, hydrogen in helium, low ppm, etc.
  • Carrier gas options and precautions: argon, hydrogen, etc.
  • Chromatogram interpretation
  • GC parameters and their effects: column temperature/flow, detector current/temperature, sample loop size/pressure
  • Analytical tips & techniques, such as:
    • Making in-house chromatographic grade helium for GCS
    • How to avoid costly detector replacement
    • Reliable limits of detection
    • Methods to minimize instrument downtime       
    • How to save over $500.00/year on each GC

This course is designed for personnel with a solid foundation in chromatography who need to obtain the maximum performance from their gas chromatograph. We focus hands on attention to ionization gas chromatographs. Nevertheless, many of the advanced principles can apply to other detectors (TCD, etc.).

Topics include:  

  • GC measurements and chemical property analysis
  • DID GC components
  • Advanced chromatography techniques: conditioning for PPB analyses, optimization of flow circuits, etc.
  • Advanced ionization detector theory and practice
  • Integrator/computer programming
  • Self-diagnostics, troubleshooting and adjustments
  • Difficult analyses: helium impurities (PPB), H2 impurities (PPB), trace N2 in argon, Ionization potentials
  • Automating chromatograms
  • Computer/GC interface and wiring
  • Installation and preventive maintenance
  • Ionization electrometer troubleshooting
  • Flow systems


Specialty Gas Training is hosted at Weldcoa’s full functioning lab facility called the WIC (Weldcoa Innovation Center) located in Aurora, IL. Address is 338 East Sullivan Road, Aurora IL 60505 (directly across the street from Weldcoa’s 335 East Sullivan Road, Aurora manufacturing facility)



Attendees are responsible for their own transportation, meal and hotel costs. If you are flying in, it is recommended that you rent a vehicle to get around. Weldcoa does not provide any shuttle services to the hotels or the airport(s).

O’Hare International Airport (ORD) and Chicago Midway International Airport (MDW) are both about the same distance from our facility (approx. 35-40 miles). Travel time is about 40-90 minutes depending on the time of day and weather conditions.

Here are a couple hotel recommendations that are approximately 5-10 minutes from Weldcoa’s facility.

Holiday Inn Express & Suites 

P: 630-896-2800 | 111 N Broadway | Aurora, IL 60505
This Holiday Inn Express & Suites is in downtown Aurora next to the popular Two Brothers Brewery. Several restaurants, as well as the casino, are within walking distance. They have just completed a significant amount of renovating and they offer a free Continental Breakfast. 

Holiday Inn Aurora-North Naperville

P: 630.806.7400 | 2424 W. Sullivan Road | Aurora, IL 60506
Some guests prefer this location over the other Holiday Inn because the Broadway Holiday Inn is near railroad tracks. 


If you have further questions, please reach out to us at melissa@weldcoa.com 

WEILER1920x900pixelsHERO Image.jpg

Weldcoa Only Succeeds When You Do

We want to partner with you, providing real long-term value.