美利体育登录入口官网:BS ISO 7503-1:2016(2018)
放射性测量 表面污染的测量和评价 第1部分：一般原则
Measurement of radioactivity — Measurement and evaluation of surface contamination Part 1 : General principles
- 标准号
- BS ISO 7503-1:2016(2018)
- 发布
- 2018年
- 总页数
- 34页
- 发布单位
- 英国标准学会
- 当前最新
- BS ISO 7503-1:2016(2018)
- 引用标准
- ISO 11929 ISO 8769 ISO/IEC 17025
- 本体
- 表面污染
- 适用范围
- ISO 7503 (all parts) and ISO 8769 are addressed to the people responsible for determining the radioactivity present on solid surfaces. ISO 7503 is published in three parts and can be used jointly or separately according to needs. This part of ISO 7503 relates to the assessment of surface contamination by direct and indirect measurements and the calibration of the associated instrumentation. The standard applies to alpha-, beta- and photon emitters and is intended for use by hospitals, universities, police, or industrial establishments. The standard also can be used in the assessment of activity on trucks, containers, parcels, equipment and is applicable in any organization which handles radioactive materials. Generally, it is applicable to well defined flat surfaces where direct methods are applicable, however, it can also be used for surfaces which are not flat and where indirect wipe tests would be appropriate. These investigations may be carried out on containers, inaccessible areas, non-flat areas where wipe tests can be used. This part of ISO 7503 may be useful in emergency situations, i.e. in nuclear accidents where health physics professionals would be involved. This part of ISO 7503 does not apply to the evaluation of contamination of the skin, of clothing and of loose material such as gravel.
| 术语 | 描述 |
|---|---|
| 单位面积活度 activity per unit area | 表面上存在的放射性核素的活度与该表面面积的比值，以贝可勒尔每平方厘米表示 |
| 固定表面污染 fixed surface contamination | 无法通过非破坏性手段去除或转移的表面污染 |
| 可移动表面污染 removable surface contamination | 可以通过非破坏性手段（包括偶然接触、擦拭或洗涤）从表面去除的放射性物质 |
| 擦拭测试 wipe test | 通过用干或湿材料擦拭表面，然后评估擦拭材料中可移动污染的存在与否的测试 |
| 擦拭效率 wiping efficiency | 通过一次擦拭样品从表面去除的放射性核素的活度与取样前可移动表面污染的放射性核素活度的比值 |
美利体育登录入口官网: BS ISO 7503-1:2016(2018) 中提到的仪器美利体育官网首页网址
| 表面污染监测器 | 用于直接测量表面污染的仪器 |