Annex 8

(Art. 46 para. 4 let. b, 80 para. 5 and 85 para. 5)

Marking of controlled and supervised areas

Controlled and supervised areas must be marked as follows, depending on the radiation sources used:

1

Sealed radioactive sources:

1. the most radiotoxic nuclide or reference nuclide and its maximum activity, or the activity of and nuclide with the highest-energy gamma radiation;
2. the ambient dose rate in mSv per hour in the accessible area, if appropriate;
3. the hazard warning symbol.

2

Other radioactive material:

1. the most radiotoxic nuclide or reference nuclide and its maximum activity;
2. the classification of the working area (Type A, B or C) or the zone type;
3. the maximum degree of contamination caused by loose contamination on surfaces, expressed in Bq/cm²or as the number of guidance values for the nuclide concerned;
4. the maximum degree of contamination of indoor air in Bq/m³;
5. the ambient dose rate in mSv per hour in the accessible area, if appropriate;
6. details of the protective clothing and protective measures required;
7. the hazard warning symbol.

3

Installations (e.g. X-ray equipment, accelerators):

1. the designation of the installation;
2. the type of radiation (e.g. electrons, X-rays, neutrons, where not apparent from the designation);
3. the ambient dose rate in mSv per hour in the accessible area, if appropriate;
4. the hazard warning symbol.

4 Hazard warning symbol:

Ratio of radii: 1 : 1,5 : 5