Accumulation of sodium azide in copper or lead plumbing can result in the formation of copper or lead azide and an eventual explosion. Presents procedures to dispose of azide wastes. (GS)

Indicates dangers inherent in the use of polythene or polypropylene sinks and presents alternatives to their use. (GS)

Detailed discussions are presented dealing with the selection and design of fume hoods for science laboratories. Areas covered include--(1) air flow design, (2) materials properties, (3) location in the laboratory, (4) testing and adjustment, (5) exhaust systems, and (6) hazards of fume discharges. (JT)

Discusses what can occur in a laboratory if a cylinder valve is separated from a compressed gas cylinder. (MLH)

Describes the construction and application of a device small enough to be worn on a worker's clothing that can monitor exposure to mercury. (MLH)

Annotated bibliography cites 32 sources of reference on safety cabinets for laboratory facilities. (RH)

Describes a simple device to improve the set retrieval of spilled mercury. (SL)

Experimental data, Federal and State regulations, and user data are presented to assess the safety factors of low-power lasers. General safety precautions, basic laser theory, the place of the laser in the classroom, and some introductory exercises are also presented. (Author/TS)

Discusses the selection of gloves for the chemistry laboratory. Provides checklists for the purposes of the gloves, and the factors including permeation rate, breakthrough time, friction, and cost. Lists eight rules for preventing skin exposure and minimizing area contamination. Lists six references. (YP)

An environment appropriate for activity-oriented science is one that contains sufficient work space, equipment, and materials for students to practice and master the essential elements. This publication was developed to aid Texas school administrators, teachers, and architects to upgrade existing science facilities or plan new ones for…