Calibration CEMS
Calibration of Continuous Emissions Monitoring Systems (QAL2/AST)
Installations that continuously monitor exhaust gases must periodically verify that automatic measurement systems (AMS / CEM) are working properly. The quality assurance procedures needed to assure that automated measuring systems (AMS) installed to measure emissions to air can meet the uncertainty requirements on measured values given by legislation are described in European Standard 14181.
There are three quality levels described: QAL1, QAL2/AST and QAL3. These quality assurance levels cover the suitability of an AMS for its measuring task, the validation of the AMS following its installation, and the control of the AMS during its ongoing operation on an industrial plant.
- First quality assurance level (QAL1) has to be done by the manufacturer.
- Second quality assurance level (QAL2) has to be performed by an independent under ΕΝ ISO/IEC 17025 accredited laboratory. QAL2 is a procedure for the determination of the calibration function and its variability. The QAL2 tests are performed on suitable AMS that have been correctly installed and commissioned. A calibration function is established from the results of a number of parallel measurements performed with the standard reference method (SRM). The Annual Surveillance Test (AST) is a procedure, performed by an independent under ΕΝ ISO/IEC 17025 accredited laboratory which is used to evaluate whether the uncertainty of the measured values obtained from the AMS still meet the uncertainty criteria – as demonstrated in the previous QAL2 test. It also determines whether the calibration function obtained during the previous QAL2 test is still valid.
- Third quality assurance level (QAL3) has to be performed by the plant.
ENVIROMETRICS holds an accreditation according to EN 14181 for validating the quality assurance of automated measurement systems (QAL2 & AST).
The full scope of accreditation can be found to the National Accreditation Body’s (ESYD) website.
Designed to meet the requirements of Law 4342/2015, the EPPB involves detailed data collection, meticulous analysis, and prioritization of municipal buildings to apply energy-saving measures and efficiency enhancements. We closely collaborate with municipalities to create these comprehensive plans, analyzing the primary data of the municipal building stock and the energy consumption of each property.
Our detailed assessment allows us to propose appropriate energy upgrade strategies for each building, considering factors like existing energy issues, the importance of the building’s preservation, and the building’s potential impact on the wider urban environment. A comprehensive technical report outlining the recommended actions and expected outcomes is provided. Additionally, we have developed a digital platform to streamline the process, allowing for efficient data input and analysis and easy generation of the EPPB technical report. Training services are also provided to familiarize interested parties with using the platform.
Under Law 4936/2022, we guide municipalities through the development of MERPs aimed at reducing greenhouse gas emissions. Our role includes assisting in primary data collection to record and evaluate the energy consumption of all the activities under a municipality’s jurisdiction. We then calculate the carbon footprint and establish realistic reduction targets for 2025 and 2030.
We also assist in identifying, prioritizing, and recording effective climate change mitigation measures to help the municipality meet its intended reduction goals. As with the EPPB service, a thorough technical report detailing the carbon footprint, planned mitigation measures, and expected outcomes is provided. This report is submitted to an independent accredited body for verification. We also provide a user-friendly digital platform for streamlined data analysis, report generation, and necessary training for its use.
As part of the European Commission’s Covenant of Mayors initiative, the SECAP service supports local authorities in implementing sustainable energy and climate policies. We work closely with municipalities to collect and analyze data about the activities within their geographical and administrative boundaries. This information enables us to quantify greenhouse gas emissions and determine the most representative emission factors per emission category.
The SECAP report delivered to the municipality includes a detailed carbon footprint, an assessment of climate risks, and a strategic action plan for reducing greenhouse gas emissions and adapting to climate change. This service is rounded off by entering the collected data, and it results into the Covenant of Mayors platform, thus maintaining transparency and facilitating international recognition for the municipality’s climate and energy action efforts.
