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
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About This Item
ASTM D7624 is a standard test method for monitoring nitration in in-service petroleum and hydrocarbon-based lubricants using trend analysis by Fourier Transform Infrared (FT-IR) spectrometry. It helps users track lubricant condition over time and identify changes associated with nitration before they can affect performance. By providing a consistent approach to infrared-based monitoring, this ASTM standard supports more reliable condition assessment and maintenance decisions for lubricants that remain in service.
What is ASTM D7624?
ASTM D7624 describes a test method for condition monitoring of nitration in used petroleum and hydrocarbon-based lubricants. The method relies on FT-IR spectrometry and trend analysis, which means it is intended to evaluate changes in measured infrared response over time rather than treat a single result in isolation. As the official standard title indicates, the focus is on detecting and tracking nitration-related change in service, making ASTM D7624 useful for structured lubricant analysis and routine monitoring programs.
Where is ASTM D7624 used?
This standard is commonly used in lubricant condition monitoring programs where in-service petroleum and hydrocarbon-based oils are sampled and evaluated with FT-IR equipment. It is relevant in laboratories, maintenance departments, and quality control workflows that track lubricant degradation trends over time. ASTM D7624 is especially useful when organizations need a repeatable method to monitor nitration as part of broader used-oil analysis and equipment reliability practices.
Why is ASTM D7624 important?
ASTM D7624 matters because it supports consistent interpretation of nitration trends in used lubricants, which can improve maintenance planning and reduce the risk of overlooking condition changes. A standardized test method helps users compare results more reliably across samples, equipment, or time periods. For procurement, compliance, and testing programs, having a recognized ASTM reference also strengthens documentation and supports more disciplined product evaluation and condition-based decision-making.
- FT-IR spectrometry-based trend analysis
- In-service lubricant condition monitoring
- Nitration change tracking over time
- Petroleum and hydrocarbon-based lubricants
- Support for maintenance and testing workflows
- Publication Date: 2022-10-10
- Publisher: ASTM
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