General Guidelines cont'd - hdbk110697

DOE-HDBK-1106-97

Radiological Contamination Control Training

for Laboratory Research

Student's Guide

7. Class B and C carcinogens should be properly labeled and stored with their chemical

family.

8. Store Class A carcinogens in the glovebox or another regulated area.

Note: EPA carcinogen designations are as follows:

EPA-A Human Carcinogen: sufficient evidence from epidemiologic studies to support a

casual association between exposure and cancer.

EPA-B Probable Human Carcinogen: weight of evidence of human carcinogenicity based

on epidemiologic studies is limited; agents for which weight of evidence of carcinogenicity

based on animal studies is sufficient. Two subgroups: B1: Limited evidence of

carcinogenicity from epidemiologic studies; B2: Sufficient evidence from animal studies;

inadequate evidence or no data from epidemiologic studies.

EPA-C: Possible Human Carcinogen: Limited evidence of carcinogenicity in animals in the

absence of human data.

B-2