Diesel Analysis

Black fuel nozzle beside three red-capped glass sample tubes containing clear and pale-yellow diesel samples.

Solutions for diesel fuel QC from blend to release

Anton Paar offers solutions for all diesel analysis needs, from biodiesel in diesel content through flash point, distillation, viscosity density and cloud point analysis up to oxidation stability testing. Keep fuels safe, stable, and fit for engines with streamlined routine QC, fewer manual steps, consistent operator-independent workflows, and reliable data for blending, incoming goods inspection, terminal operations, and product release.

Diesel parameters that drive release decisions

From biodiesel blend control and volatility profile to cold-flow behavior, fuel-system performance, safety, and storage stability, diesel analysis depends on fast, reliable, and compliant measurement of parameters that show whether a fuel is consistent and ready for use.

FAME content

FAME in diesel quantification verifies biodiesel blend content in diesel fuel, helping ensure specification compliance, blending control, correct product labeling, and consistent fuel quality across production, distribution, storage, and use.

Flash point

Flash point is a key diesel safety parameter used to detect contamination with volatile components that can increase fire and vapor risks in handling, storage, transport, and distribution.

Distillation behavior

Distillation behavior shows how diesel evaporates across its boiling range, providing a practical quality signal for detecting light- or heavy-end contamination, and assessing combustion, starting, and engine performance.

Viscosity and density

Viscosity and density measurements help assess fuel flow, lubrication, atomization, energy content, blending control, and product consistency, providing a fast, practical quality check for diesel performance and handling.

Cloud point

Cloud point marks the first formation of wax crystals as diesel cools, helping guide winter fuel selection and reduce the risk of filter blocking, poor flow, and operational downtime in cold conditions.

Oxidation stability

Oxidation stability indicates how well diesel resists degradation during storage and use, reducing the risk of acids, gums, sediments, deposits, and filter-plugging, especially in fuels containing biodiesel components.

Anton Paar solutions for diesel analysis

Anton Paar Lyza 7000 FTIR spectrometer with touchscreen, connected flow cell, and several syringes on a light gray background.

FAME content: Lyza 7000 with Flow Cell Modules

FTIR identifies FAME through its characteristic infrared absorption and converts the signal into a quantitative biodiesel result. Dedicated ATR and transmission flow cell configurations support standard-specific workflows, including V-ATR ZnSe, 100 µm ZnSe transmission, and 50 µm CaF₂ transmission cells. Embedded evaluation, pre-installed presets, and automation-ready design help routine labs reduce setup effort and keep blend checks consistent for diesel analysis.

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Anton Paar PMA 500 Pensky-Martens flash point tester with touchscreen, open test cup, and automated ignition assembly.

Flash point: PMA 300 and PMA 500

Pensky-Martens closed-cup testing determines the lowest temperature at which vapor above the sample can ignite under defined conditions. This result helps confirm safety before storage, transport, or production handover. Automated heating, electric ignition, flash detection, and guided operation reduce operator influence while ensuring repeatable, high-throughput fuel QC.

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Distillation behavior: Diana 300 and Diana 700

Atmospheric distillation analyzes how a diesel sample evaporates across its boiling range. The distillation curve reveals volatility behavior linked to storage, starting, warm-up, evaporation losses, and combustion. Automated heating control, vapor-temperature measurement, and volume detection turn this traditionally manual, operator-sensitive method into a reproducible workflow for routine release and product optimization.

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Viscosity, density, and cloud point: SVM 3001 Cold Properties

Kinematic viscosity describes flow and injection behavior, density reflects blend consistency, and cloud point indicates when wax crystals first appear as fuel cools. Measuring these physical fuel properties in one diesel analysis workflow helps laboratories assess specification compliance, cold-weather usability, and batch consistency with less sample handling, fewer separate methods, and faster routine release decisions.

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Oxidation stability: RapidOxy 100 Fuel

The Rapid Small-Scale Oxidation Test (RSSOT) accelerates fuel aging with elevated temperature and oxygen pressure, then evaluates the oxidation response. The result gives rapid insight into storage stability, antioxidant performance, and release readiness across fossil diesel, biodiesel, renewable diesel, and blends. Full automation and simple wipe cleaning reduce handling effort and help replace long conventional stability tests.

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Standards table

Parameter	Standard	Anton Paar solution	Benefit
FAME content	ASTM D7371	Lyza 7000 FTIR + Flow Cell Module V-ATR ZnSe	Innovative V-ATR design is optimized for B0–B20 to reduce calibration workload for routine analysis.
FAME and TAG content	ASTM D7806	Lyza 7000 FTIR + Flow Cell Module TRA ZnSe 100 μm	Embedded models with automatic decision tree ensure ideal model selection for accurate results.
FAME content	DIN EN 14078	Lyza 7000 FTIR + Flow Cell Module TRA CaF2 50 μm	B-range compatible cell avoids dilution steps for B3 to B20.
Flash point	ASTM D93 Procedure A; EN ISO 2719 Procedure A	PMA 300 and PMA 500	Fast cooling, automated testing, and long-life electric ignition turn a mandatory safety check into a high-throughput routine task.
Atmospheric distillation	ASTM D86 Group 4; ISO 3405 Group 4	Diana 700	Automated setup checks, Peltier cooling, and optical volume detection reduce the operator influence of a traditionally manual method.
Viscosity	ASTM D6751; ASTM D7467; ASTM D975	SVM series	No capillary swaps, low handling effort, and digital results help labs turn specification viscosity into a fast routine screen.
Viscosity and density	EN 590; EN 16734; EN 16709; EN 15940; EN 14214	SVM series	Viscosity and density from one sample injection help labs check multiple diesel types with less handling and solvent use.
Cloud point	ASTM D2500; ISO 3015 correlation	SVM 3001 Cold Properties	Integrated Peltier temperature control enables fully automatic measurements from 100 °C to subzero temperatures without external cooling.
Oxidation stability	EN 16091; ASTM D7545	RapidOxy 100 Fuel	One RSSOT platform covers B0 to B100 and reduces test time to just 60 minutes.