Jet Fuel A1: Global Aviation Standards & JIG Logistics

In high-stakes aviation operations, fuel quality is non-negotiable. Jet A1 is the precision-engineered kerosene substrate that powers the global commercial fleet. WorldwideTradeX ensures supply chain integrity by following JIG (Joint Inspection Group) protocols from the refinery gate to the aircraft wing.

Jet A-1 vs. Colonial Grade 54
Quality Control: JIG Scrutiny & MSEP
Logistics: Recertification & Epoxy Lining
Technical Specifications Table

1. Aviation Grade Classifications

While Jet A-1 is the global standard, regional variations exist.

Jet A-1 (Global): Freezing point of -47°C Max. Required for long-haul polar routes where ambient temperatures drop below -50°C.

Colonial Grade 54 (US Jet A): Found primarily in the US pipeline system with a -40°C freezing point.

Additives: WTX supply typically includes STADIS 450 static dissipator and Fuel System Icing Inhibitors (FSII) where requested.

2. The JIG Scrutiny Protocol

Safety is verified through rigorous testing at every transfer point (refinery, pipeline, vessel, terminal).

MSEP (Water Separation): Jet fuel must remain dry. Minimum MSEP > 70 to prevent icing in fuel lines at altitude.

Conductivity: Maintenance of > 50 pS/m to prevent static discharge during high-speed refueling operations.

3. High-Integrity Energy Logistics

Contamination Control: Using dedicated epoxy-lined tanks and dedicated pipelines to prevent cross-contamination with distillates.
Recertification: Any fuel sitting in terminal storage for > 6 months must undergo a full recertification test to AFQRJOS standards before release.

4. Technical Specifications: Aviation Hub

Property	Specification (ASTM D1655)	Typical WTX Result
Freezing Point	-47 °C Max	-50 °C
Flash Point	38 °C Min	42 - 45 °C
Density @ 15°C	775 - 840 kg/m³	805 kg/m³
MSEP Rating	70 Min (Report)	85 - 95
Total Acidity	0.015 mg KOH/g Max	0.005 mg KOH/g

Energy Knowledge Hub

Request JIG-Compliant COQ | Back to Energy Division

Frequently Asked Questions

What is the difference between Jet A-1 and Jet A fuel?

Jet A-1 is the international standard aviation turbine fuel (ASTM D1655 / DEF STAN 91-091). The key difference from Jet A is the freeze point: Jet A-1 has a maximum freeze point of -47°C vs -40°C for Jet A. Jet A-1 is required for international flights; Jet A is primarily used in the USA.

What are the critical quality parameters for Jet A-1?

Key specs: flash point minimum 38°C, freeze point maximum -47°C, density 775–840 kg/m³ at 15°C, thermal stability (JFTOT) minimum 260°C, sulphur maximum 3000 mg/kg. Thermal stability is critical for modern high-performance jet engines.

How is Jet A-1 transported and stored?

Jet A-1 is transported by pipeline, tanker vessel, or road tanker. Storage requires dedicated clean tanks with no cross-contamination from other fuels. Into-plane fueling at airports uses dedicated hydrant systems or refueling trucks. Strict cleanliness standards (ASTM D4306) apply throughout the supply chain.

What certifications and inspections are required for Jet A-1 supply?

Each batch requires: Certificate of Quality (CoQ) from the refinery, independent SGS/Intertek quality test at loading, and a Certificate of Origin. Aviation fuel supply chains also require IATA Fuel Quality Requirements (AFQRJOS) compliance and airport authority approval for into-plane delivery.