You may already know that over time diesel fuel will degrade and harbor harmful contaminants such as water, microbes, particulate, and sludge. Now, you are looking for a reliable testing method to ensure you do not face the consequences of equipment failure due to subpar fuel quality.
根据NFPA 110standard, people who own and operate buildings with emergency generators are required to conduct fuel quality testing annually to ensure their backup power does not fail during a power outage. These tests must be performed to meet theASTM D975testing standards.
While annual testing may be sufficient to meet minimum regulatory requirements, it is not necessarily optimal for ensuring that your diesel fuel stays within specification throughout the year. For many facilities that are vested in mitigating downtime, fuel quality testing will likely occur more frequently to either confirm the effectiveness of existing燃油维护programs or prescribe remediation services like燃油抛光.
When searching for diesel fuel testing options, it may not be abundantly clear what choices you may have. That is why we went ahead and developed a quick guide to cover all the available options for testing your diesel fuel for cleanliness or contamination.
Lab Testing Options for Diesel Fuel Contamination:
For regulatory reporting, most of these tests are performed offsite in a specialized lab. Facilities will capture several fuel samples from their tank(s) and ship them to these laboratories for analysis.
Microbial Lab Test (ex:ASTM D7978)
Microbial contamination can be one of the most alarming signals of poor fuel quality. While microbes will always reside in diesel, they will not over proliferate to damaging levels unless there is a sufficient source of water.
Water/Sediment Lab Test (ex:ASTM D2709)
As previously discussed, water contamination is the main prerequisite to rampant microbial contamination and should therefore be monitored and mitigated.
Particulate Lab Test (ex:ASTM D6217)
Larger particulates in the fuel are known to be especially harmful to engine injector tips. Therefore, a particulate lab test may be necessary to determine the overall cleanliness and quality of the diesel fuel.
This test will measure and report on the size and mass of the particulate present in the provided fuel samples. These measurements will give a good indication of whether the fuel needs additional filtration before it can be safely and reliably used.
Users can then determine the severity of bacterial and fungal contamination in their fuel by comparing the color density of the sample bottle(s) with the provided color chart.
Instant Microbial Testing
Users can apply the Kolor Kut® paste to a measuring stick or rod and insert it into the tank. By observing the rod or measuring stick, one can gain an idea of the water’s depth in addition to whether it is present in the tank.
Lab testing for diesel fuel cleanliness or contamination is generally a good option and arguably the only option for complying with the NFPA 110 annual testing requirement. The only downfall to this type of testing is the higher cost and decreased accuracy of microbial lab tests.
Microbes will continue to proliferate after the sample has been drawn. The longer it takes the sample to reach the lab and for the lab to test the sample, the less representative that sample is of the fuel’s quality.
Capturing “Good” Samples for Diesel Fuel Testing
两种用于捕获柴油燃料样品的流行产品是流体采样泵和油箱采样器(a.k.a. the bacon-bomb). The fluid sampling pump is straightforward, featuring a hand pump that pulls fuel through its flexible tubing into a spin-on fuel sampling container.