ASTM D8333

ASTM D8333 is a technical practice for preparing water samples with high, medium, or low suspended solids for identifying and quantifying microplastic particles and fibers using Raman spectroscopy, IR spectroscopy, or pyrolysis-GC/MS. It helps define a consistent preparation approach before instrumental analysis, which matters when sample condition can affect measurement quality and comparability. For laboratories and organizations working with water-based microplastic testing, this standard supports more reliable sample handling and analytical workflow control.

Overview of ASTM D8333

This ASTM standard focuses on how water samples should be prepared when suspended solids levels vary, so the resulting material is suitable for microplastic identification and quantification. The title indicates compatibility with Raman spectroscopy, IR spectroscopy, and pyrolysis-GC/MS, which are commonly used analytical techniques for microplastics work. ASTM D8333 is therefore useful as a preparation-oriented technical document that supports consistency in sample processing before instrumentation, helping users align procedures across different sample types and laboratory settings.

Common use cases of ASTM D8333

This standard is commonly used in laboratories that analyze water samples for microplastic particles and fibers, especially when suspended solids may range from low to high. It may be applied during method development, routine testing, or quality control workflows that require a defined preparation step before Raman, IR, or pyrolysis-GC/MS analysis. ASTM D8333 is also relevant when comparing results across projects, instruments, or sample conditions where preparation consistency is important.

Benefits of using ASTM D8333

Using ASTM D8333 can improve consistency in how water samples are prepared, which supports more dependable identification and quantification results. It may help reduce variation introduced by differing suspended solids levels and provide a clearer basis for comparable testing. For purchasers, laboratories, and technical teams, ASTM D8333 is valuable for supporting standardized workflows, improving quality control, and reducing uncertainty when evaluating microplastic analysis results against a recognized ASTM practice.

• Preparation guidance for water samples with varying suspended solids
• Supports microplastic particle and fiber analysis
• Aligned with Raman, IR, and pyrolysis-GC/MS workflows
• Useful for consistent laboratory sample handling
• Helps improve repeatability and comparability