ASTM_F_2898_-_11.pdf

Designation:F289811An American National StandardStandard Test Method forPermeability of Synthetic Turf Sports Field Base Stone andSurface System by Non-confined Area Flood Test Method1This standard is issued under the fixed designation F2898;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This test method may be used to determine the perme-ability rate of synthetic turf playing field systems,playing fieldsystems with pad or premolded drainage boards,or both,playing field systems with premolded panel base systems,porous and non porous pavement systems,or base stonesystems in the field,or a combination thereof,by non-confinedarea flood test method.This system is suitable for use on thefinish synthetic turf playing surface and on the stone basesystem below the playing system.1.2 This test method is applicable for synthetic turf playingfield systems and stone bases where system is designed forpermeability through the synthetic turf surface and or througha base stone surface.It is also suitable for synthetic turf playingsystems that are directly underlined with resilient and nonre-silient pre-molded drainage boards systems and porous pave-ment base systems.The method tests a larger surface area thanconfined ring test methods and decreases the effect lateral flowwithin the surface and or stone base system due to the largeincrease in the ratio of test surface area to the synthetic turfplaying system and stone base system thickness.The method isintended to more accurately mimic natural storm flow condi-tions by eliminating the effect of head pressure created by thewater column height which creates a pressure flow condition atthe surface of the test area that does not exist naturally.1.3 This test method is intended for finish-graded andcompacted stone or finished surfaces that are installed withcross-slope gradients of less than 2.0%or under conditionswhere the effect of cross-slope is mitigated by high systempermeability.High sloping systems tend to have high slopingbase systems which may impact results due to increases in thelateral flow within the section caused increased hydraulicenergy caused by larger slopes.1.4 This test method is not applicable for conditions orlocations in-which surface flow,due to high surface cross-slopeor proximity,carries water flow from the test site to surface andsubsurface drainage trenches or structures.1.5 Further,this test method may be impacted if preformeddirectly after a significant rainfall event in cases where thedownstream capacity of the receiving drainage system is taxedto the extent that water backs up in the downstream system.1.6 The values stated in inch-pound units are to be regardedas standard.The values given in parentheses are mathematicalconversions to SI units that are provided for information onlyand are not considered standard.1.7 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2.Referenced Documents2.1 ASTM Standards:2F1551 Test Methods for Comprehensive Characterization ofSynthetic Turf Playing Surfaces and Materials3.Terminology3.1 Definitions:3.1.1 area of test site,nthe area of test site is the surfacearea in square feet of the test site area.3.1.1.1 DiscussionThis surface area represents an ap-proximated and simplified shape of equal area such as arectangle that includes the full wetted area.Small fingers ofnon-wetted surface within the wetted area shall be ignored inthe surface approximation.It is assumed that these smallfingers of non-wetted area are wetted below the surface withinthe test site.3.1.2 dry surface,na dry surface after testing or saturationis defined as follows:3.1.2.1 dry stone base surface,na surface where water isno longer visible as ponded water on or above the surface ofthe stone.1This test method is under the jurisdiction of ASTM Committee F08 on SportsEquipment,Playing Surfaces,and Facilities and is the direct responsibility ofSubcommittee F08.65 on Artificial Turf Surfaces and Systems.Current edition approved March 1,2011.Published April 2011.DOI:10.1520/F2898-11.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 3.1.2.2 DiscussionAfter saturation or testing the surfacewill be moist and water may be visible within the surfacevoids.3.1.2.3 dry synthetic turf surface,na