Our Capabilities

Petroleum Quality Assurance — from the First Dip Test to the Final Certificate

Tzero Labs combines deep petroleum industry knowledge with a coordinated approach to testing, inspection, dip test facilitation, and documentation — supporting every party in the supply chain to move cargo with confidence.

Product Testing Dip Tests Lab Coordination Documentation HSE

Capability overview

Cargo inspection coordination

Tank gauging & dip tests

Lab sample management

Certification support

Port-based support

Multi-agency coordination

Petroleum inspection professional at terminal

Petroleum terminal with tankers and storage infrastructure

Petroleum sampling and laboratory analysis

Petroleum Product Testing

Quality verification for a full range of petroleum products, coordinated through recognized testing agencies. We ensure samples are correctly drawn, properly dispatched, and results accurately reported.

EN590 diesel, Jet A-1, D6 fuel oil
Crude oil and residual fuels
Marine fuel and renewable diesel
LNG/LPG and petrochemicals

Petroleum product sample testing in laboratory

Dip Test Coordination

Accurate measurement of petroleum in storage tanks is fundamental to every custody transfer. We coordinate dip test attendance and facilitate tank gauging through recognized inspection personnel at loading and discharge terminals.

Ullage and dip tape gauging
Opening and closing stock surveys
Water and interface detection
Volume and mass reconciliation

Cargo Inspection Management

Independent inspection at load port and discharge port is the foundation of any credible quality assurance programme. Tzero Labs coordinates inspection attendance through agencies including SGS, Intertek, Bureau Veritas, Cotecna, and Saybolt.

Pre-loading and post-discharge surveys
Ship-shore compatibility checks
Composite and spot sampling
Outturn quantity verification

Petroleum cargo inspection at loading terminal

Laboratory Sample Management

From sample collection through dispatch, tracking, and result delivery, Tzero Labs manages the full laboratory coordination process. We work with recognized labs to prioritize urgent samples and ensure results reach you on time.

Chain-of-custody sample management
Priority and urgent sample dispatch
Lab progress tracking
COA review and interpretation

Petroleum sample laboratory coordination

Documentation & Certification

Petroleum transactions require a precise set of documents. A missing certificate or misaligned quantity figure can delay payment and create costly disputes. Tzero Labs helps assemble, verify, and track every document in the transaction package.

Certificate of Quality and Quantity
Bill of Lading alignment checks
Customs and regulatory documentation
Dispute resolution evidence packages

Petroleum transaction documentation and certification

Port-Based Field Support

Some challenges can only be solved on the ground. Tzero Labs provides coordination support at major oil and gas ports — helping arrange tank access, inspection attendance, and urgent sample dispatch when time is critical and delays are expensive.

On-site inspection coordination
Tank access facilitation
Emergency sample dispatch
Port authority liaison support

Port-based petroleum inspection support team

Inspection & Laboratory Network

Tzero Labs does not operate its own laboratory. Instead, we coordinate through a network of recognized inspection and testing companies — ensuring that every sample is handled by accredited professionals using validated methods and approved equipment.

This approach means your test results come from agencies that are recognized by counterparties, accepted by port authorities, and admissible in commercial or legal disputes — not from an unknown source.

SGS Intertek Bureau Veritas Cotecna Saybolt Port-approved labs

Testing Methods

ASTM standard methods
IP (Institute of Petroleum) methods
ISO petroleum testing standards
EN specification testing

Standards Alignment

ISO/IEC 17025 (laboratory competence)
ISO/IEC 17020 (inspection bodies)
ISO 9001 (quality management)
ISO 14001 (environment)

Quantity Measurement

API/ASTM manual gauging
Automatic tank gauge (ATG) support
Temperature and density corrections

Deliverables

Test reports and COA
Inspection certificates
Survey reports

Delivery process

A structured engagement from scoping to document handover — so every step is clear and nothing is missed.

1. Engagement scoping

Confirm product, port, counterparty, and timeline requirements.

2. Inspection arrangement

Coordinate attendance, sampling, and dip test schedule with recognized agencies.

3. Sample dispatch

Manage sample chain-of-custody from collection to laboratory receipt.

4. Results and review

Track lab progress, review results against specification, escalate issues immediately.

5. Document package

Assemble all certificates, reports, and transaction documents for handover.

Recognized agencies

All testing and inspection through SGS, Intertek, BV, Cotecna, Saybolt, and port-approved labs.

Time-aware

We manage to vessel schedules and loading windows — not lab queue times.

Chain of custody

End-to-end sample and document integrity from collection to final certificate.

HSE compliance

Every field engagement follows applicable safety protocols and port authority requirements.

Petroleum inspection team at port terminal