Basic Gravimetric Mixture Filling


This course is designed for specialty gas mixture personnel who need the basics of making SG mixtures. Prior lab experience is helpful but not required. This is a 3-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 us for additional information and schedules for these advanced applications.