Accurate tank calibration and metering verification are fundamental to preventing disputes in the oil, gas, and chemical industries.
BQCIS provides full calibration and verification services, ensuring that every cubic meter is accounted for
according to ISO,
API MPMS, and
ASTM standards.
All results are defensible in trade, customs, and finance, and are securely logged in the
Digital Assurance Hub.

Vertical & Horizontal Tank Calibration

• Strapping and proving charts created for vertical, horizontal, and spherical tanks.
• Laser, electronic, or manual strapping methods applied with accuracy tolerances under 0.05%.
• Records maintained as legal metrology references, accessible via Digital Assurance Hub.

Meter Proving & Factor Verification

• Portable prover tanks and master meters used to validate line meters.
• Correction factors applied to account for thermal expansion and flow rates.
• Defensible calibration logs recognized by customs and financial institutions.

Documentation & Trade Defensibility

• Certificates issued with traceable references, QR-secured for tamper-proofing.
• Comprehensive calibration dossiers for port authorities and lenders.
• Linked to Case Studies showing real-world calibration dispute resolutions.

• API MPMS — Petroleum measurement standards
• ISO Standards — Calibration and custody transfer
• ASTM Methods — Meter proving & verification

• Digital Assurance Hub — Secure calibration records
• Case Studies — Dispute resolution with calibration logs