Diesel density test kit
Hydrometer-based field reading for diesel using the product-specific density range and measuring cylinder.
View diesel kit →Fuel Testing & Quality ControlUFuel online shop
Fuel-testing kits for diesel and illuminating paraffin field screening.
Shop diesel and paraffin density kits and Authentix LFD products, with clear guidance on the purpose, method, limitations and next step for each test.
Start with the test purpose
Density screening and marker testing answer different questions.
Select a product according to the suspected issue, fuel type, sampling method and decision that will follow. Each result must be interpreted within the method’s limitations.
Paraffin density test kit
Hydrometer-based field reading for illuminating paraffin using the appropriate density range.
View paraffin kit →Authentix LFD products
Single and box quantities for testing associated with the relevant marker-detection procedure. Follow the supplied instructions exactly.
Compare products →Shop fuel-testing products
Choose the product that matches the fuel and test purpose.
Open the product page before purchasing to review the intended use, contents, instructions and limitations.
Know when a field test is not enough
A test result should support the next decision—not create false certainty.
Document the sample, date, time, location, supplier, batch or delivery information, test method and result. Where the consequences are material, preserve evidence and obtain appropriate laboratory or specialist support.