Technical articles

Technical articles on uncertainty, reporting basis, and compliance

Guidance for engineers and compliance teams working with DP flow measurement, laboratory data, compensated properties, and ETS reporting responsibilities.


Start with the question closest to your case
Feasibility / screening

Is It Worth Improving Your Uncertainty Basis? A Practical Feasibility Check

Compare the current case with a realistic improved case and judge whether tighter uncertainty is likely to matter before investing effort.

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Fluid properties / compensation

Pressure- and Temperature-Compensated Density: Common Pitfalls and Hidden Errors

Why a corrected number is not automatically a correct number, and where compensation logic can quietly go wrong.

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Compliance / responsibility

EU ETS vs ETS2: Who Is Responsible for the Uncertainty Basis?

Clarifies what sits with the operator or regulated entity, what the verifier does, and where the uncertainty basis really belongs.

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Laboratory data / design basis

What If Lab Samples Do Not Match the Design Case?

Why a mismatch between lab samples and the design case does not prove either one is wrong, but does show the basis must be reconciled.

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Use the articles to frame the question

Each article is intended to help you define the technical issue clearly before you decide whether to run a calculation, review a report, or challenge the basis behind an existing result.

Then move into the calculation

Once the question is clear, the calculator is the next step. The example report and methodology pages show how the result is structured and what sits behind it.

Need to see the formal deliverable as well?

Review the example report to see the compliance verdict, uncertainty budget, audit identifiers, and the flow-bias note based on laboratory density data.