1、Designation:E263514Standard Practice forWater Conservation in Buildings Through In-Situ WaterReclamation1This standard is issued under the fixed designation E2635;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revis
2、ion.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 In an effort to help meet growing demands being placedon available water supplies and water treatment facilities,many communities thr
3、oughout the United States and the worldare turning to water reclamation and reuse.Water reclamationand reuse offer an effective means of conserving the Earthslimited high-quality freshwater supplies while helping to meetthe ever growing demands for water in residential,commercial,and institutional d
4、evelopment.This practice sets forth a prac-tice for water reuse in buildings and related construction,encompassing both graywater and blackwater in-situ reclama-tion.1.1.1 This practice specifies parameters for substitutingreclaimed water in place of potable water supplies wherepotable water quality
5、 is not required.1.1.2 This practice specifies limitations for use of reclaimedwater in-situ.It is not intended for application to the use ofreclaimed water delivered from an offsite municipal wastewa-ter treatment facility.1.1.3 This practice specifies performance requirements forin-situ reclaimed
6、water systems.It does not specify particulartechnology(ies)that must be used.A variety of technologiesmay satisfy the performance requirements.1.1.4 This practice specifies requirements for water stew-ardship associated with in-situ water reuse.Consistent withGuide E2432 and for purposes of this pra
7、ctice,water steward-ship includes both quantity and quality impacts on water usedin buildings.1.2 Implementation of this practice will require professionaljudgment.Such judgment should be informed by experiencewith sustainable development,including environmental,economic,and social issues as appropr
8、iate to the building use,type,scale,and location.1.3 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.1.3.1 ExceptionSolely SI units are us
9、ed in Table 1,TableX3.1,and Table X4.1.1.4 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 limi
10、tations prior to use.2.Referenced Documents2.1 ASTM Standards:2D888 Test Methods for Dissolved Oxygen in WaterD1253 Test Method for Residual Chlorine in WaterD4188 PracticeforPerformingPressureIn-LineCoagulation-Flocculation-Filtration Test in WaterD4840 Guide for Sample Chain-of-Custody ProceduresD
11、5128 Test Method for On-Line pH Measurement of Waterof Low ConductivityD5244 Practice for Recovery of Enteroviruses from Waters(Withdrawn 2013)3D5464 Test Method for pH Measurement of Water of LowConductivityD5907 Test Methods for Filterable Matter(Total DissolvedSolids)and Nonfilterable Matter(Tota
12、l Suspended Solids)in WaterD6238 Test Method for Total Oxygen Demand in WaterD6569 Test Method for On-Line Measurement of pHD6698 Test Method for On-Line Measurement of TurbidityBelow 5 NTU in WaterD6734 Test Method for Low Levels of Coliphages in WaterE631 Terminology of Building ConstructionsE2114
13、 Terminology for Sustainability Relative to the Perfor-mance of BuildingsE2432 Guide for General Principles of Sustainability Rela-tive to Buildings1This practice is under the jurisdiction of ASTM Committee E60 on Sustain-ability and is the direct responsibility of Subcommittee E60.07 on Water Use a
14、ndConservation.Current edition approved March 1,2014.Published April 2014.Originallyapproved in 2008.Last previous edition approved in 2008 as E2635-08.DOI:10.1520/E2635-14.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annua
15、l Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.3The last approved version of this historical standard is referenced onwww.astm.org.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1
16、 2.2 Other References:U.S.EPA Protocols,Monitoring and Assessing Water Qual-ity;Section 5.2,Dissolved Oxygen and BiochemicalOxygen Demand4California Health Laws Related to Recycled Water,“ThePurple Book”53.Terminology3.1 Definitions:3.1.1 For terms related to building construction,refer toTerminology E631.3.1.2 For terms related to sustainability relative to theperformance of buildings,refer to Terminology E2114.3.2 Definitions of Terms Specific to This Standard:3.2.1 blackwater,nuntreated waste
