ASTM D7624

Standard Test Method for Condition Monitoring of Nitration in In-Service Petroleum and Hydrocarbon-Based Lubricants by Trend Analysis Using Fourier Transform Infrared (FT-IR) Spectrometry.

Get more information about the standard at  ASTM D7624-22.

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Oil Condition Monitoring
The FTIR spectral lubricant analyzer eraspec oil
fully compliant with ASTM D7624

The FTIR spectral lubricant analyzer.

ASTM D7624 is a standard test method for monitoring nitration levels in in-service petroleum and hydrocarbon-based lubricants. Utilizing Fourier Transform Infrared (FT-IR) spectrometry, this method facilitates trend analysis to detect the accumulation of nitration by-products, which is crucial for assessing machinery health and lubricant performance.

Details

The ASTM D7624 test method employs FT-IR spectrometry to detect the build-up of nitration by-products in in-service lubricants. This method applies to the monitoring of nitration in gasoline and natural gas engine oils, as well as other lubricants susceptible to nitration by-products formed through combustion processes or other mechanisms. It is specifically designed for petroleum and hydrocarbon-based lubricants and is not applicable to ester-based oils, including polyol esters or phosphate esters.

Industries and Applications

ASTM D7624 is significant in various industries and applications, including:

  • Automotive industry: Engine manufacturers and service providers utilize this method to monitor oil quality in gasoline and natural gas engines, ensuring optimal performance and longevity
  • Power generation: Facilities operating natural gas-fired turbines employ this standard to assess lubricant condition, preventing unscheduled downtimes and maintaining efficient energy production
  • Industrial manufacturing: Machinery reliant on petroleum-based lubricants is monitored for nitration levels to avert operational disruptions and extend equipment lifespan
  • Oil analysis laboratories: These entities offer testing services based on ASTM D7624, providing critical data to clients for informed maintenance decisions