significance And Use:

scope:

1.1 The objective of this guide is to provide useful information for the interpretation of radiological instrument responses in the event of a radiological incident or emergency.

1.2 For the purposes of this guide, a radiological incident or emergency is de?ned as those events that follow the indication of the presence of radioactive material outside of a Department of Energy (DOE) or Nuclear Regulatory Commission (NRC) de?ned radiological area. The event may be triggered by a law enforcement officer wearing a radiation pager during the course of his routine duties, a ?rst responder at the scene of an accident wearing a radiation pager, a HAZMAT team responding to the scene of an accident known to involve radioactive material surveying the area, etc.

1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.4 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.