ASTM D8478
Standard Test Method for N-Hexane Recoverable Total Oil and Grease and Total Petroleum Hydrocarbons in Water by ATR-Infrared Determination
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About This Item
ASTM D8478 is a test method for measuring n-hexane recoverable total oil and grease and total petroleum hydrocarbons in water by ATR-infrared determination. It is intended to support consistent laboratory analysis of water samples where these contamination indicators need to be identified and quantified. By defining a standardized approach, the ASTM standard helps improve comparability between results, which is important for monitoring, reporting, and technical decision-making in water-related testing programs.
Purpose of ASTM D8478
The purpose of ASTM D8478 is to provide a standardized test method for determining n-hexane recoverable oil and grease, along with total petroleum hydrocarbons, in water using ATR-infrared determination. This technical document supports a more uniform approach to sample evaluation and instrumental measurement. In practice, it helps laboratories and other users follow a common method when assessing oily contamination in water, reducing ambiguity in results and helping align testing activities with defined ASTM requirements.
Common use cases of ASTM D8478
This standard is commonly used in laboratory and environmental testing workflows where water samples must be analyzed for oil and grease or petroleum-derived compounds. It may be relevant for routine quality control, compliance testing, or product and process evaluation involving water that could contain hydrocarbon contamination. ASTM D8478 is also useful where consistent ATR-infrared measurement is needed to compare results across samples, instruments, or testing locations.
Why ASTM D8478 matters
ASTM D8478 matters because it supports reliable and repeatable testing for substances that can affect water quality, reporting, and operational decisions. A standardized method helps reduce variation between laboratories and improves confidence in analytical results. For organizations that depend on accurate oil and grease or total petroleum hydrocarbon measurements, using ASTM D8478 can support compliance efforts, procurement specifications, quality control checks, and risk reduction in water testing programs.
- ATR-infrared determination
- Water sample analysis
- Oil and grease measurement
- Total petroleum hydrocarbon testing
- Laboratory consistency and comparability
- Publication Date: 2023-05-18
- Publisher: ASTM
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