Diesel Water Ash Sulfur Mixing Tester

Analysis of water, ash, and sulfur content in diesel fuel is critical for quality control, compliance with specifications, and predicting fuel performance and emissions. Standard test methods for these parameters often require a homogeneous sample to ensure the measured value is representative of the entire batch. Free water can separate, and solid particulates (which contribute to ash and can contain sulfur) can settle.

While there isn't a single, universally recognized instrument explicitly named a "Diesel Water Ash Sulfur Mixing Tester," such a device would serve the function of vigorously and effectively mixing diesel samples under controlled conditions to disperse any settled water or solid contaminants. This prepared, homogeneous sample can then be accurately sampled for analysis using instruments like Karl Fischer titrators (water), furnaces (ash), and XRF or combustion analyzers (sulfur). The specific mixing method might vary, including mechanical stirring, shaking, or homogenization, potentially with temperature control to ensure the sample is in the correct state for mixing and subsequent analysis.

Applications

1. In diesel quality control, homogenization of samples provides representative, homogeneous samples for the analysis of water, ash, and sulfur content;

2. Meets the requirements for diesel sample pretreatment in standards such as ISO 16332. ISO 4406. and GB 19147;

3. Improves the accuracy and repeatability of analytical results by using equipment such as Karl Fischer titrators (for water content determination), combustion analyzers (for ash content determination), and X-ray fluorescence spectrometers (for sulfur content determination);

4. Standardized pretreatment of diesel samples in a laboratory environment assists in fuel quality compliance testing.

Standards

ISO 16332:2018：Diesel engines — Fuel filters — Method for evaluating fuel/water separation efficiency

ISO 4406:2021：Hydraulic fluid power — Fluids — Method for coding the level of contamination by solid particles

GB 19147-2016：Automobile diesel fuels

Features

Based on the likely requirements for mixing diesel samples for water, ash, and sulfur analysis:

Robust stirring or mixing mechanism suitable for diesel fuel viscosity (e.g., powerful magnetic stirrer with strong magnetic coupling, overhead stirrer with appropriate impeller, or a laboratory shaker).

Sample vessel holders or platforms capable of securing sample containers of various sizes (e.g., bottles, beakers).

Variable speed control for the mixing mechanism to adjust the mixing intensity based on sample volume and viscosity.

Technical Parameters

Accessoriess

1. Mixing chamber/container (sealed container suitable for diesel samples);

2. Mechanical stirring assembly (including stirring paddle and drive components);

3. Temperature control module (if with temperature control function);

4. Sample transfer tubing/connectors;

5. Operation control panel (including buttons and display unit);

6. Safety protection components (such as protective cover, emergency stop button);

7. Accompanying instruction manual, certificate of conformity, and other documents.

Test Procedures

1. Sample Preparation

Take the diesel sample to be processed, confirm its condition (no risk of serious impurities clogging), and transfer it to the instrument's mixing container in the required quantity.

2. Instrument Settings

Turn on the instrument power and set the mixing parameters according to the sample processing requirements (e.g., stirring speed, mixing time; if temperature control is included, set the target temperature).

3. Sample Mixing

Secure the container containing the diesel sample to the instrument and start the mixing program to homogenize the sample (dispersing free water and solid particles).

4. Sample Removal

ter mixing is complete, stop the instrument and remove the homogenized diesel sample from the mixing container for subsequent analysis of water, ash, and sulfur content.

5. Instrument Cleaning

After sample processing, clean the mixing container and contact parts, turn off the instrument power, and record the operation information.