ASTM C1075-17(2022) PDF

Overview

ASTM C1075-17(2022): Standard Practices for Sampling Uranium-Ore Concentrate establishes standard procedures for the sampling of uranium-ore concentrates (UOC) in the nuclear industry. The standard is developed by ASTM and ensures that bulk and secondary samples used for analytical testing, such as moisture determination and chemical analysis, are representative of the materials being shipped, processed, or stored. The scope of ASTM C1075-17(2022) covers alternative methods for primary and secondary sampling, sample preparation, and sample packaging. This international standard supports consistent and reliable testing practices critical to the safe handling, quality control, and regulatory compliance of uranium-ore concentrates.

Key Topics

• Primary Sampling Techniques:

  • One-stage falling stream
  • Two-stage falling stream
  • Auger sampling

• Secondary Sampling Methods:

  • Straight-path (reciprocating) cutter sampling
  • Rotating (Vezin) cutter multi-sampling

• Sample Preparation:

  • Processes include concurrent drying, maintaining natural moisture, and calcination to ensure readiness for analytical testing.

• Sample Packaging:

  • Guidance for various packaging techniques such as wax sealing and vacuum sealing for the safe transport and storage of uranium-ore concentrate samples.

• Material and Equipment Requirements:

  • Specifies standards for containers (e.g., steel drums), weighing scales, and system calibration.
  • Details criteria for minimizing dust and moisture exchange during sampling.

• Safety and Regulatory Considerations:

  • Emphasizes adherence to all relevant international, federal, and local safety and environmental regulations associated with handling uranium-ore concentrates.
  • Guidance on regulatory conformance provided, but health and safety requirements themselves are not included in the scope.

Applications

The practices defined in ASTM C1075-17(2022) are essential for a variety of stakeholders in the nuclear sector, including:

• Nuclear Fuel Producers and Processors: To obtain consistent, representative samples for process control, quality assurance, and regulatory documentation.
• Analytical Laboratories: To prepare pulverized, homogenized samples for moisture, impurity, or uranium content testing using established methods.
• Regulatory Agencies and Inspectors: To verify that nuclear material movements are accompanied by properly sampled and tested UOC, supporting transparency and accountability.
• Logistics and Shipping Operators: For packaging and sealing sampled materials according to international standards, ensuring compliance during national and cross-border shipments.
• Contracting Parties in Nuclear Material Transactions: To agree on sampling methodology, ensuring fairness and consistency in material acceptance and dispute resolution.

The standard supports robust sampling and analytical protocols crucial for the integrity, safety, and traceability of uranium-ore concentrates throughout the nuclear fuel cycle.

Related Standards

Users of ASTM C1075-17(2022) may also reference:

• ASTM C967 - Specification for Uranium Ore Concentrate
• ASTM C1022 - Test Methods for Chemical and Atomic Absorption Analysis of Uranium-Ore Concentrate
• ASTM C1843 - Test Method for Determining Moisture Content in Uranium-Ore Concentrate
• ASTM C859 - Terminology Relating to Nuclear Materials

Regulatory Reference:

• CFR Title 10, Chapter 1 - United States Code of Federal Regulations regarding nuclear materials licensing

These documents together help ensure safe, reliable, and internationally accepted practices for the sampling and analysis of uranium-ore concentrates, supporting both operational and legal compliance within the nuclear industry.

Keywords: Sampling uranium-ore concentrate, UOC sampling practices, nuclear material sampling, analytical sample preparation, ASTM C1075-17, uranium-ore moisture testing, primary and secondary sampling, uranium fuel cycle standards.