Use the defined method
Take the correct sample, use the correct equipment and follow the required handling procedure.
The FuelGuard method
Test. Record. Verify. Escalate.
A field result becomes useful when it is produced consistently, connected to the event and interpreted within a clear operating rule.
Choose Your EquipmentThe control loop
A four-stage operating method.
The exact test differs by product and application, but the evidence discipline remains the same.
Capture the event
Link the result to the operator, fuel source, vehicle or tank, date, time and photographs.
Apply the rule
Compare the observation with the expected range, correction guidance or acceptance criteria.
Protect the operation
Quarantine risk, retain evidence and obtain confirmatory analysis when required.
Before testing
Define the purpose and the sample point.
A result is only as useful as the sample and the question it is intended to answer. Testing fuel from an irrelevant or contaminated point can create false confidence or unnecessary alarm.
- Identify the fuel grade and source
- Choose a representative sampling point
- Use clean, compatible sampling equipment
- Record temperature where density is measured
- Avoid cross-contamination between samples
- Retain a reference sample when disputes are possible
Field screening is not laboratory certification
FuelGuard products are designed to support operational screening, early detection and evidence collection. Where legal, insurance, contractual or technical certainty is required, use an accredited laboratory and the appropriate chain-of-custody procedure.
Product-specific use
What each FuelGuard product contributes.
| Product | Primary purpose | Evidence to retain | Typical escalation |
|---|---|---|---|
| DensiTest | Rapid diesel integrity screening at a refuelling or custody-transfer event. | Test photograph, event details, supplier, location, timestamp and observations. | Stop or quarantine, retain sample and obtain confirmatory laboratory analysis. |
| Diesel hydrometer kit | Measure observed diesel density and fuel temperature. | Hydrometer reading, temperature, correction reference, sample point and photograph. | Repeat with a representative sample and confirm against specification or laboratory analysis. |
| Petrol hydrometer kit | Measure observed petrol density and temperature under safe controlled conditions. | Reading, temperature, sample source, operator and safety record. | Quarantine and escalate unusual results using the appropriate technical procedure. |
| AquaTrap™ | Support selected free-water control applications in compatible storage environments. | Tank details, selected size, deployment date, inspection and replacement record. | Investigate the source of water ingress and assess tank condition. |
Safe field practice
Fuel handling requires disciplined safety controls.
Control ignition sources
Follow site rules for smoking, sparks, electrical equipment, static and open flames.
Work in ventilation
Avoid inhalation and perform petrol-related procedures only in a suitable ventilated environment.
Use appropriate PPE
Apply the site risk assessment, gloves, eye protection and spill-response requirements.
Manage samples correctly
Label, store, transport and dispose of fuel samples according to applicable requirements.
Follow the product guide
Use the correct range, fill volume, reading method and cleaning procedure.
Train the operator
Do not rely on equipment alone; verify competency and practical procedure adherence.
Choose the equipment, define the evidence and train the operator.
FuelGuard can help structure a practical SOP around the products and operating risk.
Request Technical Guidance