What is a diesel cetane number tester and what is its core function

02-12-2025

The diesel cetane number tester is an instrument used to determine the cetane number of diesel. Its core function is to simulate the ignition characteristics of compression ignition engines, quantify the spontaneous combustion performance of diesel, and provide key data for fuel quality control.

core functionality

1. Determination of cetane number: The cetane number of diesel is quantitatively analyzed using standard testing methods such as ASTM D613 and GB/T 386-91. This indicator reflects the ignition delay period of diesel during compression ignition, which directly affects engine performance and emissions.  ‌

2. Quality control: Provide fuel quality testing basis for petroleum refining, transportation, and environmental supervision fields to ensure that diesel meets industry standards.  ‌


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