Radioactivity of SCO-1 is low. The entry includes solid objects of non-radioactive material having a radioactive material distributed on its surfaces which:
1. the non-fixed contamination on the accessible surface, averaged over 300cm2 (or the area of the surface if less than 300cm2), does not exceed 4 Bq/cm2 for beta and gamma emitters and low-toxicity alpha emitter, or 0.4 Bq/cm2 for all other alpha emitters;
2. the fixed contamination on the accessible surface, averaged over 300cm2 (or the area of the surface if less than 300cm2), does not exceed 4X10(4) bq/cm2 for beta and gamma emitters and low-toxicity alpha emitters, or 4x10(3) Bq/cm2 for all alpha emitters; and
3. the non-fixed contamination plus the fixed contamination on the inaccessible surface, averaged over 300cm2 (or the area of the surface is less than 300cm2), does not exceed 4x10(4) Bq/cm2 for beta and gamma emitters, or 4 x 10(3) Bq/cm2 for all the alpha emitters.
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