Where measuring is a key activity

The provision of technical consultancy, research and engineering services.

Our team combines expertise in metrology, physics, chemistry, mathematics, and statistics, and integrates modern methods such as artificial intelligence (AI), machine learning (ML), large language models (LLM), and Bayesian statistics. We apply these techniques to tackle complex challenges where classical models fall short — for example, when the underlying physical or chemical processes are too complex or not fully understood. This allows us to create flexible, data-driven models that improve predictions, reduce uncertainty, and add real value to decision-making processes.

With over 20 years of experience, it is our responsibility to provide the solution to your problem.

About Qualimetric

Qualimetric is an independent technology research company that provides pragmatic solutions and technologies where measuring is a key activity. 
With over 20 years of international experience in consultancy for the chemical, oil and gas industry. 

Products & Services

Qualimetric provides consultancy, research and engineering services to chemical oriented organizations and industries .
Conceptual designs, feasibility studies and quality management systems are offered using state of the art process analytical technologies and chemometrics.

Competing on analytics

Qualimetric has built up a research consultancy team with considerable and complementary skills, and draws upon a wide range of experise. Where chemistry and physics meets mathematics and statistics, Qualimetric offers added value to research and production activities. 

Standardization

Qualimetric is actively involved in various standardization processes and a member of the following committees:


ASTM D02.04 
Hydrocarbon Analysis


ASTM D02.94
Quality Assurance and Statistics


CEN TC19/WG36
Precision Evaluation


ISO TC28/WG2
Determination and application of precision data in relation to methods of test 

 
ISO NC310193 
Nationale Normcomissie aardgas

Within the 'Natural gas' standard committee (NEN310193) Qualimetric is active in the field of (natural) gas analysis and related calculations and methods. This is an attempt to be part of the national Dutch voice towards the natural gas-related technical committees, subcommittees and working groups of ISO and CEN. Monitoring the quality of ISO standards is seen as an important task here. This standards committee has a good look at what is happening within the ISO working groups of ISO/TC193. As a member of the standards committee, there is the opportunity to participate as an expert in international ISO working groups where the actual standards are established. In particular, the working groups that are directly involved in natural gas analyzes and calculations of physical quantities that are important within the natural gas industry are important.

We have been a member of CEN/TC 19 working group 36 'Precision Evaluation' for some time now. This is an international working group that falls under TC 19 'Petroleum Products'. The focus of this working group is mainly on the arithmetic and statistical topics of TC 19 test methods and in particular on precision and accuracies of test methods. This applies to both existing and new standards under development. We act on the one hand as a discussion partner for other working groups working on the development of new standards and on the other hand in evaluating existing standards with a view to precision statements.

The working group ISO/TC28/WG2 'Determination and application of precision data in relation to methods of test' has the task of developing a coherent set of standards that are directly related to precision, accuracy and equivalence of different test methods. A lot of statistics come into play here, in which I feel very much at home. This working group is working on the development of ISO4259-5. This describes a method that can be used to investigate whether two different test methods give interchangeable results. This concerns specifications of petroleum-derived products. One specific test method is often regarded as a reference, but from a practical or economic point of view it is still desirable to be able and allowed to apply other test methods for this. Equivalence must be demonstrated for this.

Process Analytical Technology

Process Analytical Technology (PAT) involves systems for analysis and control of manufacturing processes based on measurements of critical quality parameters and performance attributes of raw and in-process materials and processes to assure acceptable end product quality at the completion of the process This involve optimal applications of technological tools, feedback process control strategies, information management tools, and/or product/process optimization strategies to the manufacture of products. 

Simdis TBP Correlation

 

The Ministry of Defense in the UK issued a new Defense Standard 91-91 defining the requirements for one grade of kerosene type aviation turbine fuel on February 2005 referring to ASTM  D1655-03. This standard lists the jet fuel specifications, designating ASTM D2887 as alternative to physical distillation method ASTM D86 in determining distillation properties for Jet A and Jet A-1. 


NATO specifies the Defense Standard as Nato code F-35 in use for aircraft gas turbine engine fuels. These test requirements specify simulated distillation method IP406 as alternative to physical distillation method IP123 for determining distillation properties. Simulated distillation method IP406 is equivalent to ASTM D2887 and physical distillation method IP123 is equivalent to ASTM D86.

Simdis ASTM D2887 applications can reports both true boiling point (TBP) and correlated D86 data. 


This D86/D2887 correlation is developed by Qualimetric. The correlation for IP406/IP123 is described in Annex G of IP406 and D86/D2887 is included in ASTM D2887Apendix X.4 for jet- and diesel fuels. 

 

Correlated Flash Point for Distillate Fuels 

Test method ASTM D7215 includes the calculation of the flash point as a means for a direct estimate of the flash point temperature of distillate fuels from simulated distillation according to data from test method ASTM D2887.

At Qualimetric we established and validated this correlation model using experimental data of diesel and jet fuel samples. These data came from both ASTM D56, ASTM D93 and ASTM D3828 for the flash point determination and ASTM D2887 for the boiling range distribution by gas chromatography. The correlation was determined using a partial least square regression method (PLS). the validation was performed on the basis of a ASTM D6708 procedure. This eventually led to the publication of ASTM D7215.


What is Petrometrics?

The discipline of chemometrics, applied in the field of  petrochemical production is known as Petrometrics. 


Qualimetric develops and investigates correlation models for predicting relevant physical properties of diesel and jet fuel types based on chromatographic analysis. To this end, uni- and multivariate data analysis is used, such as MLR, PLS, PCR, etc.

Products & Services

 

  •  Design of Experiments / Exploratory Data Analysis
  •  Technical Audits on gas transportation and metering facilities
  •  Quality Monitoring & Control Systems
  •  Development of predictive models
  •  Conceptual Design & Feasibility Studies
  • Process Engineering, Design & Optimization
  • Assistance for ISO17025 accreditation 
  • Uncertainty Calculations & Evaluations