One of the world’s largest beverage manufacturers sought to enhance its gas purity verification system.
In light of the stringent impurity monitoring requirements established by the International Society of Beverage Technologists (ISBT), existing technologies such as Premier Guard and CBAS require an advanced solution for Beverage CO2 monitoring.
The new systems needed to be rugged, reliable, user-friendly, and easy to maintain while meeting rigorous ppb-level measurement standards.
Table 1. ISBT Carbon Dioxide Guidelines. Source: ASTG
| PARAMETERS |
RATIONALE1 |
| Purity |
99.9% v/v min. |
Process |
| Moisture |
20 ppm v/v max. |
Process |
| Acidity |
To pass test |
Regulatory |
| Oxygen |
30 ppm v/v max. |
Sensory |
| Nitrogen compounds |
| Ammonia |
2.5 ppm v/v max. |
Process |
|
| Nitric oxide/nitrogen dioxide |
2.5 ppm v/v max. |
Sensory |
| Non-volatile organic residue |
5 ppm w/w max. |
Sensory |
| Phosphine |
To pass test (0.3 ppm v/v max) |
Regulatory |
| Total volatile |
50 ppm v/v max. of which 200 ppm v/v |
Sensory |
| Hydrocarbons (as methane) |
max. of non-methane hydrocarbons |
|
| Acetaldehyde |
0.2 ppm v/v max. |
Sensory |
| Aromatic hydrocarbon sulfide |
0.020 ppm v/v max. |
Process |
| Total sulfur (as S) |
0.1 ppm v/v max. |
Sensory |
| Cabonyl sulfide |
0.1 ppm v/v max. |
Sensory |
| Hydrogen sulfide |
0.1 ppm v/v max. |
Sensory |
| Sulfur dioxide |
1 ppm v/v max. |
Sensory |
| Appearance in water |
No color or turbidity |
Sensory |
| Oder |
Odorless |
Sensory |
| Taste and odor |
No foreign taste or color in water |
Sensory |
1 Rationale definitions
Sensory: Any attribute that negatively impacts the taste appearance, or odor of beverage.
Process: Any attribute that defines a key parameter in a controlled process and an important consideration in the beverage industry.
Regulatory: Any attribute whose limit is set by governing regulatory agencies.
The Solution
After five years of development, which included two years of field trials and one year of in-service validation, AirBreather Systems™ was launched.
This robust, cost-effective, and maintenance-friendly system incorporates state-of-the-art technology and proprietary software to provide fast, accurate, and readily accessible CO2 purity verification.
It has received approval from Coca-Cola under Reference Number: NA-KO-102.
Image Credit: ASTG
Benefits of AirBreather Systems
- Exceeds ISBT Standards
- Fastest response time (4 minutes)
- No carrier gases required other than air
- Least amount of precious sample gas required
- Secure certificate of analysis module - COA™
- No span calibration gases required / internal validation
- Automated fill panels speed up distribution time
- Truck filling option
- Expandable for raw gas
- Can be used for recycled or alternative CO2 sources
- Simple design makes it easy to service
- Low cost of ownership
This information has been sourced, reviewed and adapted from materials provided by ASTG.
For more information on this source, please visit ASTG.