Tiêu chuẩn quốc tế

• Số hiệu / Standard Number: ANSI N43.6:1977
• Năm ban hành / Publication date: 1977
• Tình trạng / Status: W - Hết hiệu lực
• Tên tiếng Anh / Title in English: Sealed Radioactive Sources, Classification (N542 - 1977)
• Số trang / Page: 29

Phạm vi áp dụng / Scope of standard

This standard establishes a system of classification of sealed
radioactive sources based on performance specifications related to
radiation safety. It does not consider the radiation output of the
sealed source.

It provides a manufacturer of sealed radioactive sources with a
set of tests to evaluate the safety of his products under specified
conditions, and also to assist a user of such sources to select
types which suit the application he has in mind especially where
protection against radioactivity is concerned. This standard may
also be of guidance to regulatory authorities.

The tests fall into several groups including, for example,
exposure to abnormally high and low temperature and a variety of
mechanical tests. Each test can be applied in several degrees of
severity.

Although the standard classifies sealed sources by a variety of
tests, it does not imply that the sealed source will maintain its
integrity if used continuously at the rated classification. For
example, a sealed source tested for one hour at 600 ºC may, or may
not, maintain its integrity if used continuously at 600 ºC.