Document: NRC Regulatory Guide
Document ID: 4b34bbdf-f837-4227-9a0d-3f0ad3778b30
Document Type: regulatory_guide
Title: Protection of Nuclear Power Plant Control Room Operators Against an Accidental Chlorine Release (Rev. 1)
Source: NRC Regulatory Guide Division 1
Source URL: https://www.nrc.gov/docs/ML1229/ML12298A134.pdf
Revision Date: 2023-06
Chapter: 
Section ID: RG-1.95
CFR Part: 
CFR Title: 

Content:
Washington, DC. 20555, Attention: Docketing and methods acceptable to the NRC staff of implementing specific parts of the Service Section. Commission's regulations, to delineate techniques used by the staff in evalu- The guides are issued in the following ten broad divisions: ating specific problems or postulated accidents, or to provide guidance to appli cants. Regulatory Guides are not substitutes for regulations, and compliance 1. Power Reactors 6. Products with them is not required. Maethods and solutions different from those set out in 2. Research and Test Reactors 7. Transportation the guides will be acceptable if they provide a basis for the findings requisite to 3. Fuels and Materials Facilities 8. Occupational Health the issuance or continuance of a permit or license by the Commission. 4. Environmental and Siting 9. Antitrust Review Comments and suggestions for improvements in these guides are encouraged 5. Materials and Plant Protection 10. General at all times, and guides will be revised, as appropriate, to accommodate com- ments and to reflect new information or experience. This guide was revised as a Copies of published guides may be obtained by written request indicating the result of substantive comments received from the public and additional staff divisions desired to the U.S. Nuclear Regulatory Commission, Washington, D.C. review. 20555, Attention: Director. Office of Standards Development. K Such failure could occur during the transportation of a container as a result of a handling mishap or could be due to naturally or accidently produced environ- ments such as earthquakes, flooding, fire, explosive overpressure, or missiles. A failure of this type could result in a puff release of about 25% of the chlorine. The balance of the chlorine would be vaporized and released over an extended period of time. As a result of the cloud formed by the release from such an acci- dent, the chlorine concentration inside the control room might increase rapidly. In