Tiêu chuẩn quốc tế

• Số hiệu / Standard Number: ASTM C1052-14
• Năm ban hành / Publication date: 2014
• Tình trạng / Status: W - Hết hiệu lực
• Tên tiếng Anh / Title in English: Standard Practice for Bulk Sampling of Liquid Uranium Hexafluoride
• Chỉ số phân loại Quốc tế (ICS) / By field: 27.120.30 - Vật liệu phân rã
• Số trang / Page: 4

Phạm vi áp dụng / Scope of standard

1.1 This practice covers methods for withdrawing representative samples of liquid uranium hexafluoride (UF₆) from bulk quantities of the material. Such samples are used for determining compliance with the applicable commercial specification, for example Specification C787 and Specification C996.

1.2 It is assumed that the bulk liquid UF₆ being sampled comprises a single quality and quantity of material. This practice does not address any special additional arrangements that might be required for taking proportional or composite samples. When the sampled bulk material is being added to UF₆ residues already in a container ("heels recycle") additional arrangements are required to avoid cross contamination of the bulk UF₆, these are addressed in the appropriate section (8.2) of Specifications C787 and C996.

1.3 The number of samples to be taken, their nominal sample weight, and their disposition shall be agreed upon between the parties.

1.4 The scope of this practice does not include provisions for preventing criticality incidents.

1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.