Jet Fuel Testing

Standard Compliance & Specifications: Testing must ensure the fuel meets recognised standards like ASTM D1655 (for Jet A‑1) and DEF STAN 91‑091.

Sampling Procedures Matter: A valid test depends on proper sampling from storage tanks, pipelines or delivery vehicles. Incorrect sampling can give misleading results.

Key Parameters to Test: These include appearance (clear & bright, free of water), density, freezing point, flash point, particulate contamination, microbial content, and thermal/oxidation stability.

On‑Site vs Laboratory Testing: Basic checks (visual, free water tests) can be done on‑site; more advanced tests (oxidation stability, sulfur content, trace contaminants) need accredited labs.

Preventive Maintenance & Quality Control: Beyond testing fuel itself, systems (tanks, filters, hoses) must be monitored and maintained (e.g., using “white bucket test”, filter membrane test) to prevent contamination.

Consequences of Out‑of‑Spec Fuel: Fuel outside specification can cause serious issues: engine performance problems, filter plugging, microbial growth, ice formation (from water), deposit build‑up in fuel systems.