Legal Shield — Legal Protection. Measurement and Metrology

Your measurements and custody-transfer protocols remain legally resilient in any situation.

🛡 Introduction

Commodity operations along oil & gas transit corridors are a real minefield. Legal risks hide at every step: from measurements and protocols to national and international agreements. Lawyers often argue over “commercial terms” (price, supply conditions), but in commissions and arbitration it is metrology that decides: operators rely on measurements, and measurements rely on methods, references to standards, and properly completed documentation.

Legal Shield by Pro meter is not a slogan but a working roadmap for safe passage through this “minefield.” We detect contradictions in advance, design legally robust procedures, and review document packages before signing critical agreements.

Standard protection level

  • Protocols, logs, calibration and verification — strictly per the rules of the region.

  • Traceability and unified format of records (acts, forms, reports).

What they rarely tell you

  • In many countries, national norms conflict with international ones (OIML, API, ISO, GOST).

  • In routine work this is invisible, but it surfaces in courts and arbitration.

  • The highest risk is around “uncertainty vs error” terminology and incorrect references to sources.

Why Pro meter

  • 40+ years of practice on transit corridors, continuous work with inspections and audits.

  • Deep expertise in OIML, API, ISO/IEC, GOST and their “interfaces” in real projects.

  • Ability to embed legal resilience directly into measurement procedures and documents.

What you get

  • Verified documentation, ready for inspections and arbitration (including metrological support).

  • A tailored list of risks and legal pitfalls for the specific project.

  • Technical recommendations for arranging both the primary and backup measurement schemes.

  • Balance reconciliation recommendations.


📘 Legal Metrology — extended

📄 Documentation and translations

Free PDF copies found on the internet may look convenient, but they are often outdated, truncated, or mistranslated.
In arbitration such documents are easily challenged.

Recommendation: organizations involved in the project must keep a complete, up-to-date set of documents listed in the main contract.

🧭 Pro meter recommendations (5 steps)

  • Track your sources. Always reference the original: OIML, ISO, API, GOST.

  • Choose methods correctly. If a standard requires “error,” do not replace it with “uncertainty.”

  • Record legal rationale. A short phrase in the protocol can protect a contract.

  • Develop applied methods for the site. Consider node conditions (T, P, ranges).

  • Run internal audits before inspections to verify compliance with international norms.


🛡 Pro meter practice (audits)

To assess the state of metrological support, we run confidential internal audits.
Depending on the required depth, these can be performed remotely or on site.

🔎 For custody-transfer measurement systems we typically check:

  • Technical design documentation.

  • Operation manuals.

  • Shift/hourly reports of the system.

  • Calibration and verification protocols.

  • Flow computer configuration and checksum.

  • Flow computer event log.

This minimum package is sufficient for remote assessment.
For a complete audit, an on-site visit is required: we review the full documentation set specified in the contract and check the technical condition of the measurement systems.

A step-by-step audit program is available upon request.
All audits are fully confidential and carried out without disturbing the operating process.


🧰 Pro meter deliverables in metrology

  • Method sheets for calibration and verification.

  • Protocol templates with explanatory notes.

  • Error and uncertainty budgets in editable Excel for metrological analysis.

  • Algorithms for error/uncertainty evaluation using proprietary methods.

  • Applied documentation for automated measurement systems.

  • Documentation for technical servicing.

  • Everything we produce complies with international and national metrology law.


🎓 Consulting, training and mentoring

We practice the following formats:

  • Master classes instead of generic seminars.

  • Coaching and on-site mentoring of young lead specialists.
    We do not replace your position — we help build skills and experience.

  • Advisory for technical directors and top managers.
    We orient management on what requires attention and what can be safely ignored.

  • Development of algorithms for calculation, regulation and control.
    We write technical specifications for programmers and coordinate their work during project delivery.

  • Advisory for project managers.

We always think a few steps ahead. Compliance is embedded into every action.


📂 Case snapshots

Pro meter has encountered many serious — and sometimes curious — cases. For example:

  • Vessels delayed at anchorage. Tankers waiting for weeks or even months due to errors in transit paperwork.

  • Equipment returned to suppliers. Entire batches rejected because customs would not accept improperly prepared documentation.

  • Chemical analyses invalidated. Attempts to “speed things up” led to protocols being rejected as incorrect.

And these are just a few examples. Pro meter has extensive, document-backed experience.
Full details are shared only in closed one-to-one meetings — to protect our clients’ interests and confidentiality.


📑 Reference standards (compact set)

International:
OIML R 117 (liquid measuring systems), OIML D 31 (AMS guide), ISO 3171 (sampling), ISO 4259 (test method precision), API MPMS Ch. 4 (provers), API MPMS Ch. 11 (physical property tables).

National/Regional (example RU/CIS):
GOST 8.586.1–5 (custody-transfer measurement units), GOST R 8.615 (liquid meters), GOST 2517 (sampling), GOST 27384 (quantity/quality systems), VNIIR/VNIIMS guidelines (compact provers, reference devices).

📜 Legal framework (laws & ISO)

In projects touching human health, working conditions and the environment, metrology is not an “option” but a legal requirement. Without a metrology block, a project is merely a technical description and legally incomplete — vulnerable during inspections and disputes.

Latvia / EU — regulated legal metrology

  • Latvian law Par mērījumu vienotību — protects life, health and the environment from the consequences of inaccurate measurements. likumi.lv
  • Procedures for metrological control and initial verification (Cabinet regulations; PTAC/ministries). PTAC
  • EU Directive 2014/32/EU (MID) — CE, “M” mark, and notified bodies. EUR‑Lex

ISO / JCGM — what must be in documentation

  1. ISO/IEC 17025 — competence of testing and calibration laboratories. ISO
  2. ISO 10012 — measurement management system. ISO
  3. JCGM / GUM — guide for the expression of measurement uncertainty. BIPM
  4. ISO 14001 — environmental management. ISO
  5. ISO 45001 — occupational health & safety. ISO
  6. ISO 9001 — monitoring, measurement, analysis and evaluation. ISO

Where metrology is mandatory by default

  • Measuring instruments and systems used for trade/settlements (water, gas, heat, electricity, liquids other than water; automatic weighing instruments, taximeters, capacity measures, exhaust analysers).
  • Measurements affecting health, safety and the environment and other regulated legal‑metrology domains.
Practical takeaway: include in the contract and project documentation package: ISO/IEC 17025 (laboratory protocols), ISO 10012 (MMS), GUM (uncertainty budget), ISO 14001/45001/9001 (monitoring/measurements), and MID conformity for instruments/systems.
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