Table I: LABORATORY CLASSIFICATIONS FOR RADIOACTIVE MATERIAL USE LOCATION

HAZARD GROUPS (1)
FOR THE MAJORITY OF RADIONUCLIDES USED AT WSU

	GROUP I (ALI >10 mCi (2))	GROUP II (1 mCi<ALI≤10 mCi)	GROUP III (0.1 mCi<ALI≤1 mCi)	GROUP IV (0.01 mCi<ALI≤0.1 mCi) Or (10 uCi<ALI<100 uCi)	GROUP V (0.001 mCi<ALI<0.01 mCi) Or (1 uCi<ALI<10 uCi)	GROUP VI (ALI<0.001 mCi) Or (ALI<1 uCi)
Laboratory Use Level (3) (mCi/month)	H-3 Cr-51 Tc-99m In-113m	C-14 Cu-64 Na-24 Ga-67 P-33 Br-82 S-35 Sr-85 Cl-36 Mo-99 K-42 Tc-99 Ca-45 In-111 Mn-54 I-123 Fe-55 Hg-197 Co-57 Au-198 Co-58 Hg-203 Ni-63 (Foil) (inorganic)	Na-22 Se-75 P-32 Rb-86 K-40 Sr-89 Ca-47 Cd-109 Fe-59 Ag-110m Co-60 Ir-192 Zn-65 Ir-194 Hg-203 (organic)	Sr-90 I-125 I-131 Cs-137	I-129 Ra-226 Ra-228 Th-228 Th-230	Ac-227 Np-237 Pb-210 Pu-239
≤0.01	A	A	A	A	B	C
0.01<Use≤0.1	A	A	A	B	C	D
0.1<Use≤1.0	A	A	B	C	D	D
1<Use≤10	A	B	C	D	D	D
10<Use≤100	B	C	D	D	D	D
100<Use≤1000	C	D	D	D	D	D
1000<Use≤10,000	D	D	D	D	D	D

(1) Hazard Groups based upon Annual Limits of Intake (ALI) from ICRP #30 and WAC 246-221-290.

(2) 1 mCi = 37 MBq

(3) Laboratories only storing radioactive materials will be considered lab class A.

Notification of the storage status must be made directly to the RSO. 09/24/08