Setting the standard: GT6000 Mobilis redefining the Stack Testing industry
Every major industrial facility emitting significant airborne emissions has a Continuous Emissions Monitoring System (CEMS) to measure that emission limit values are not breached. But how do we know the CEMS is measuring correctly for its lifetime of ten-plus years?
Quality Assurance Level tests, typically referred to as QAL2 tests and annual surveillance tests (AST) are done in Europe and many parts of Asia by third-party expert test laboratories, typically referred as “stack testers”. They compare the readings of the CEMS to the ones produced by proven test methods, thus proving the CEMS is performing as it should.
The stack testers can use standard reference methods that are often manual. Moreover, alternative methods, like portable automated measuring systems (P-AMS), can be used if they are proven to provide equivalent results. But how to prove the equivalence?
Certifying the FTIR technology to meet the requirements and to ensure accuracy
EN standard EN 15267-4 was written in 2017 for the purpose of certifying portable multi-gas analyzers for stack testing. The standard includes extensive tests first in the laboratory and later in the field at least in at least 5 different industrial sites.
During the testing process, you need to measure linearity, interferences, the effect of temperature, the effect of vibrations, field usage and many other parameters. And each gas you plan to have certified will need to be tested separately! For systems that measure a lot of gases, getting the certificate is a project for several years – on top of developing the actual analyzer of course.
FTIR is the most common CEMS method in demanding environments such as waste-to-energy plants or cement kilns. However, no QAL1-certified FTIR P-AMS existed even after seven years following the standard introduction – showing how tight the requirements are for systems that measure 10+ gases.
Not just a milestone, but a testament of Gasmet’s quality and commitment
At Gasmet, we decided to become the company that breaks the limit. After years of hard work, here we are: GT6000 Mobilis is the world’s first QAL1-certified FTIR P-AMS!
“Before the certification process according to the EN 15267-4 started, the R&D phase at Gasmet had included immense efforts from a highly committed team of industry experts in designing and optimizing the system to ensure high precision and reliability. This included setting targets for performance under different conditions, followed by iterative prototyping and testing, ensuring the system meets the stringent certification standards” says Seija Lappalainen, R&D Project Manager at Gasmet Technologies. And she continues: “As active collaboration with the test facility was crucial, R&D team’s involvement was intensive also during the certification process itself.”
Replace 11 different labor-intensive manual sampling methods with one analyzer
A total of 11 different certified gases can be measured simultaneously plus tens of complementary gases. This means that stack testers can now replace and complement a large variety of methods with a single one – saving a huge amount of time and money and being able to serve more customers in the same time frame while improving the result reliability and ensuring accuracy.
This is a situation that has never happened before, truly a major milestone that redefines what’s possible in emissions monitoring.
| GT6000 Mobilis
GT6000 Mobilis is a new generation portable FTIR multigas analyzer suitable for monitoring gas concentrations in hot, wet, and corrosive gas streams. Together with Portable Sampling System (PSS Plus or PSS Base), it transforms into a complete portable emissions monitoring system. |
 |