ASTM C698 is the ASTM standard for the chemical, mass spectrometric, and spectrochemical analysis of nuclear-grade mixed oxides ((U, Pu)O2). It provides a technical framework for evaluating these materials using analytical methods that support composition assessment and quality control. For organizations working with nuclear-grade mixed oxides, the standard matters because consistent analysis helps support material verification, process control, and reliable reporting.

What is ASTM C698?

This standard is a test-method document focused on analytical examination of nuclear-grade mixed oxides containing uranium and plutonium. ASTM C698 addresses chemical analysis alongside mass spectrometric and spectrochemical approaches, giving laboratories a recognized basis for measuring and comparing material characteristics. In practice, it is used as a technical reference for determining whether analytical results are produced in a consistent and appropriate way for this specialized fuel-related material.

Where is ASTM C698 used?

ASTM C698 is typically used in laboratory and quality assurance settings that handle nuclear-grade mixed oxides. It is relevant where ((U, Pu)O2) materials are tested, verified, or documented for production and oversight purposes. The standard commonly supports analytical workflows involving sample preparation, instrument-based measurement, and result evaluation. It is especially useful where repeatable test methods are needed to support material control and technical documentation.

Why is ASTM C698 important?

This standard is important because it helps bring consistency to the analysis of a specialized nuclear material. Using ASTM C698 can support compliance efforts, improve comparability of results, and reduce uncertainty in chemical and instrumental testing. For procurement, production, and quality control teams, having a recognized ASTM standard helps align expectations for analytical performance and strengthens confidence in reported data. It also supports more reliable decision-making when material quality must be documented carefully.

• Chemical analysis of nuclear-grade mixed oxides
• Mass spectrometric testing guidance
• Spectrochemical analysis reference
• Support for quality control and reporting
• Applicable to ((U, Pu)O2) materials