ASTM C1165 is the ASTM standard for determining plutonium by controlled-potential coulometry in H2SO4 at a platinum working electrode. It describes a specialized analytical method for measuring plutonium with an electrochemical approach under defined chemical conditions. As a technical reference, it helps support consistent laboratory practice, method selection, and comparison of results when plutonium quantification is required. This standard is especially relevant where controlled, repeatable measurement is important.

Purpose of ASTM C1165

The purpose of ASTM C1165 is to provide a standardized test method for plutonium determination using controlled-potential coulometry. The title indicates a specific measurement technique based on electrochemical control, sulfuric acid solution, and a platinum working electrode. In practice, that kind of standard helps laboratories use a common analytical approach, improving consistency in testing and result interpretation. It is intended to support dependable plutonium analysis within a controlled technical framework.

Common use cases of ASTM C1165

This standard is commonly used in analytical laboratories that need a defined method for plutonium measurement. It may support quality control, compliance testing, or routine evaluation of samples where plutonium content must be determined with a documented procedure. Because the method is tied to controlled-potential coulometry in sulfuric acid, it is most relevant to workflows that rely on electrochemical analysis equipment and careful sample handling under standardized conditions.

Why ASTM C1165 matters

ASTM C1165 matters because standardized analytical methods help reduce variation in plutonium testing and improve confidence in reported results. For organizations that depend on reproducible measurements, a recognized ASTM standard supports better consistency across laboratories, procurement specifications, and internal quality systems. It also provides a clearer basis for comparing data, documenting procedures, and reducing uncertainty in technical decisions related to plutonium analysis.

• Controlled-potential coulometry method
• Plutonium determination focus
• H2SO4-based analytical conditions
• Platinum working electrode usage
• Supports standardized laboratory testing