Handbook for Public Playground Safety 45 APPENDIX B: PLAYGROUND TESTING 3.0 inch interior diameter 1.5 inch interior diameter 0.50 inch interior diameter 0.25 inch thick 1.0 inch exterior diameter 0.75 inch thick 2.0 inch exterior diameter 1.5 inch thick 3.5 inch exterior diameter Figure B1. Projection test gauges 1.25 inch max 1/8 inch max. 2 inch max. Note: gauge made of any rigid material Figure B2. Projection test gauge for suspended swing assemblies and slides B.1 Templates, Gauges, and Testing Tools
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