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ASTM D7111-16 Standard Test Method for Determination of Trace Elements in Middle Distillate Fuels by Inductively Coupled Plasma Atomic Emission Spectrometry (ICP-AES)

ASTM D7111-16 is based on ASTM D7111-15a, but was published later and was consistently updated. It is a standard that outlines the test method for determining the concentrations of trace elements in middle distillate fuels using Inductively Coupled Plasma Atomic Emission Spectrometry (ICP-AES). This method involves analyzing the fuel sample to detect elements such as calcium (Ca), lead (Pb), sodium (Na), potassium (K), and vanadium (V), among others. The concentration range covered by this test method is approximately 0.1 mg/kg to 2.0 mg/kg.

Trace metals in middle distillate and turbine fuels can cause corrosion and deposition on turbine components at elevated temperatures. For example, trace level copper in middle distillate aviation turbine fuel can significantly accelerate thermal instability of the fuel, leading to oxidation and production of detrimental insoluble deposits in the engine. Accurate measurement of these elements is essential for assessing the contamination level and ensuring the quality and usability of middle distillate fuels.

By using ICP-AES, the standard ensures high sensitivity and accuracy in detecting trace levels of elements that can affect fuel performance and engine longevity. This method helps in maintaining the efficiency of turbine and diesel engines, protecting equipment from corrosion and damage, and ensuring the overall quality of middle distillate fuels. Consequently, ASTM D7111-16 plays a vital role in the economic and operational aspects of the petroleum industry.

With the highly robust and sensitive PlasmaQuant 9200 series, Analytik Jena offers a powerful, reliable and compliant solution for ICP-OES analyses to fulfill the requirements of ASTM D7111-16.

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Analysis of elemental impurities in diesel by HR ICP-OES according to ASTM D7111-16 (EN)

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