Describes an apparatus that uses liquified gases to wash solids. Discusses the procedures and processes used to do a wash with liquid sulfur dioxide. (CW)

Enumerates variables involved in the safe operation of a fume hood. Describes a test to measure hood performance. Discusses variables which effect hood performance. Lists design changes sometimes necessary to provide more space and encourage good practices. Concludes with a summary of good hood practices. (CW)

Determined that an instructional unit on laboratory safety could increase student safety knowledge and reduce the number of unsafe behaviors. A list of unsafe behaviors which were observed with the 333 students is included. A recommendation that positive attitudes toward safety be developed is given. (DH)

This report was developed to address institutional biosafety committees' implementation of federal guidelines applicable to the environmental release of genetically engineered organisms. These committees are from universities, companies, and other organizations that are using recombinant DNA technology in their laboratories. The committees are…