landscape structures PlayBooster Pod Climber 156916, Руководство пользователя, Страница: 20 / 124

Critical Heights
© 2001 by Landscape Structures. All rights reserved.
Critical Heights (in Feet)
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NA = Not Available
NOTE: Compressed depths most accurately depict conditions on a playground.
Uncompressed Compressed
Depth Depth
Material 6" 9" 12" 9"
Wood Mulch ................................................ 7' 10' 11' ............... 10'
Double Shredded Bark Mulch ...................... 6' 10' 11' ................ 7'
Uniform Wood Chips ................................... 6' 7' 12' ................ 6'
Fine Sand ..................................................... 5' 5' 9' ................ 5'
Coarse Sand ................................................. 5' 5' 6' ................ 4'
Fine Gravel .................................................. 6' 7' 10' ................ 6'
Medium Gravel ............................................ 5' 5' 6' ................ 5'
An approximation of the maximum fall height from which a life-threatening
head injury would not be expected to occur, based on tests in which a headform
yielded both a peak deceleration of less than 200 G's and a HIC of less than
1000 upon impact.
Handbook for Public Playground Safety, published by the U.S. Consumer Prod-
ucts Safety Commission, Section 10, Table 2, page 21.
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SAFETY NOTE
Choose a protective surfacing material that
has a Critical Height Value of at least the
height of the Highest Accessible Part/Fall
Height of the adjacent equipment. (Ref. ASTM
F1487.)