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The Characterization of Linear Polyethylene SRM 1475: I. Introduction
C A J Hoeve1, Herman L Wagner1, Peter H Verdier1
1Institute for Materials Research, National Bureau of Standards, Washington, D.C. 20234.
Summary
The National Bureau of Standards released linear polyethylene standard reference material SRM 1475. Characterization studies revealed some pellet-to-pellet variability in the material.
Area of Science:
- Polymer Science
- Materials Science
- Analytical Chemistry
Background:
- Standard Reference Materials (SRMs) are crucial for accurate measurements.
- Linear polyethylene is a widely used industrial polymer.
- The National Bureau of Standards (NBS) provides SRMs for various materials.
Purpose of the Study:
- To introduce and describe NBS Standard Reference Material 1475, a linear polyethylene.
- To outline the comprehensive characterization methods applied to SRM 1475.
- To report initial findings on the homogeneity of the SRM.
Main Methods:
- Detailed description of the linear polyethylene sample.
- Overview of the analytical techniques used for characterization (details in subsequent reports).
- Statistical analysis to assess sample variability.
Main Results:
- SRM 1475 is characterized as a linear polyethylene material.
- Initial assessments indicated some degree of variability between individual pellets.
- The extent of this pellet-to-pellet variability was quantified.
Conclusions:
- SRM 1475 provides a well-characterized standard for linear polyethylene.
- Understanding and accounting for pellet variability is important for users of SRM 1475.
- Further detailed characterization results are available in companion reports.
Keywords:
FractionationNational Bureau of Standardslinear polyethylenemolecular weightmolecular weight distributionpellet variabilitystandard reference materialMore Related Videos
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