Signs

Question 1

Unrestricted Area

Answer 1

Exposure: less than 2 mrem/hr
(0.02 mSv)

General public may enter

Waiting rooms

Question 2

Restricted Area

Answer 2

Exposure: greater than 2mrem/hour
(0.02 mSv)

Authorized individuals only

Question 3

Radioactive Materials Area

Answer 3

Exposure: more than 2 mR/hr but less than 5 mR/hr

Entrance to department

Area surveys and wipe tests required

Question 4

Radiation Area

Answer 4

Exposure: greater than 5 mR/hr at 30 cm

Question 5

High Radiation Area

Answer 5

Exposure: greater than 100 mR/hr at 30 cm

Question 6

White I

Answer 6

Surface: less than 0.5 mrem/hour
(0.005 mSv/hr)

1 meter: none detectable

Question 7

Yellow II

Answer 7

Surface: less than 50 mrem/hour
(0.5 mSv/hr)

1 meter: less than 1 mrem/ hour
(0.01 mSv/hr)

Question 8

Yellow III

Answer 8

Surface: less than 200 mrem/hr
(2 mSv/hr)

1 meter: less than 10 mrem/hr
(0.1 mSv/hr)

Question 9

TI index

Answer 9

Maximum radiation level at one meter from package

In mR/hour or uSv/10

Question 10

What information needs to be on labels transported

Answer 10

Radionuclides

Total activity in Bq

Question 11

Grave danger: very high radiation area

Answer 11

More than 500 rads (5 grays) in 1 hour at 1 m from radiation source