THE NATIONAL SANITATION FOUNDATION STANDARD ON SWIMMING POOL EQUIPMENT CONCERNS ITSELF WITH THE SUCCESSFUL APPLICATION OF SURFACE SKIMMERS TO SWIMMING POOLS. THE MINIMUM DESIGN AND CONSTRUCTION REQUIREMENTS ESTABLISHED BY THIS STANDARD ARE SET FORTH TO PROVIDE A MEANS OF EVALUATING THE OVERALL CONSTRUCTION AND EFFECTIVENESS OF THE UNIT. ADDITIONAL CONCERN IS GIVEN TO THE FACTORS RELATING TO THE APPLICATION OF SURFACE SKIMMERS AND THEIR INTEGRATION INTO THE OVERALL HYDRAULIC PERFORMANCE OF THE CIRCULATORY SYSTEM. SURFACE SKIMMERS REMOVE DIRT AND OIL LADEN FILM FROM THE SURFACE OF THE SWIMMING POOL THROUGH A CONTINUOUS REMOVAL PROCESS. THE SURFACE DRAW DEPENDS ON A COMBINATION OF SURFACE TENSION, EFFECTIVE VELOCITY, AND WIND DRIFT EFFECTS. THIS SPECIFICATION IS DIVIDED INTO FOUR SECTIONS--(1) GENERAL SCOPE, (2) DEFINITIONS, (3) MATERIALS OF CONSTRUCTION, AND (4) DESIGN AND CONSTRUCTION. RECOMMENDATIONS FOR INSTALLATION ARE ALSO GIVEN. (RH)