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Updated: Mar 19, 2026

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In Situ Visualization of the Phase Behavior of Oil Samples Under Refinery Process Conditions
Published on: February 21, 2017
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Preparation of Reference Material 8504, Transformer Oil.
Dianne L Poster1, Michele M Schantz1, Stephen A Wise1
1National Institute of Standards and Technology, Gaithersburg, MD, 20899-8392.
Summary
A new transformer oil reference material, RM 8504, is now available. It serves as a diluent for Aroclor-containing Standard Reference Materials, aiding in polychlorinated biphenyls (PCBs) analysis.
Area of Science:
- Environmental Science
- Analytical Chemistry
Background:
- Transformer oils are matrices for analyzing environmental contaminants.
- Standard Reference Materials (SRMs) are crucial for method validation.
Purpose of the Study:
- To introduce a new reference material (RM 8504) for polychlorinated biphenyls (PCBs) analysis.
- To support the development and validation of methods for PCB determination in transformer oils.
Main Methods:
- Preparation of RM 8504 as a diluent oil.
- Characterization of RM 8504 using transformer oil from existing SRMs.
Main Results:
- RM 8504 is a pure transformer oil, suitable as a diluent.
- RM 8504 is compatible with Aroclor-containing SRMs 3075-3080 and SRM 3090.
Conclusions:
- RM 8504 provides a reliable diluent for PCB analysis in transformer oils.
- This new RM enhances the accuracy and reliability of environmental testing.
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