ISO 04974-2023.docx

INTERNATIONA1.STANDARDISO4974editionFirst2O23-O7Soi1.qua1.ityGuidanceonsoi1.temperaturemeasurementQUQ1.iMduso1.-RecommanciaUonsre1.ativesaumesuragedeIatemperatureduso1.©ISO2023COPYRIGHTPROTECTEDDOCUMENT©ISO2023IUirhM*hedbdi1.iUedotherwiseupdhi.o啪InyM1.tta0Dmk<nroni(ncm11ni10tf1.*Mqn1.C6pW11opypMRationmaytheinternetoranintranet,withoutpriorwrittenpermission.PermissioncanberequestedfromeitherISOattheaddressbe1.oworISO'smemberbodyinthecountr)oftherequester.f),WV>fifiU81.andonnet8CH-1214Vernier,GenevaPhone：M1.22749O1.11觥ftte:丽丽BQrgPub1.ishedinSwitzer1.andContentsForewordIntroductionv2 Scope13 Normativereferences14 TermsanddefinitionsFundamenta1.s14.1 Princip1.e14.2 Soi1.temperaturemeasurementmethods24.22GiMwmtionaImeasurement24,23QU1.Ckmeasurement.4Se1.ectionofmeasurementmethods55.1 Genera1.55.2 Methodse1.ectioninthesoi1.qua1.ityfie1.d55.3 SIt>ica1.CappHiMinrtas口9Uaftyfieki65.3.2Quickmeasurement6Qua1.ityassuranceandqua1.itycontro1.6Testreport6AnnexA(informative)Soi1.temperaturemeasuredbythermistorandIRthernoneter7Bib1.iography5ForewordISO(theInternationa1.OrganizationforStandardization)isawor1.dwidefederationofnationa1.standardsUudiugh(ISOtdm0itof1.iiRj)tis(vcek<jMMtf1.pbrjr)gbody1.1.tHrwttH1.6tandd>kif(ntvhmitteehasbeenestab1.ishedhastherighttoberepresentedonthatcommittee.Internationa1.organizations,governmenta1.andnon-governmenta1.,in1.iaisonwithISO.a1.sotakepartinthework.ISOco1.1.aboratesc1.ose1.ywiththee1.ectrotechnica1.standardization.Internationa1.E1.ectrotechnica1.Commission(IEC)ona1.1.mattersofTheproceduresusedtodeve1.opthisdocumentandthoseintendedforitsfurthermaintenanceare狐解幽Of1.SO/鹿惴助卜es揣屈犯noteftt111脚.财Mtcordancetheeditoria1.ru1.esoftheISO/IECDirectives.Part2(secwww.iso.org/direc1.ives).曲曲谶en1.a陛nWOntakeS用脚腾忸般on<¾f脚岛四品栅瞰ntm部邮删课躇Mcdaimedpatentrightsinrespectthereof.Asofthedateofpub1.icationofthisdocument,ISOhadnotreceivednoticeof（八）patent(三)whichmayberequiredtoimp1.ementthisdocument.However,i11p1.ementersare蜘临翻河i躺/mj，wWjsOQFg/patents洗蝮油那ion,vWspon三eOra,1suchpatentrights.Anytradeusedinthisconstitutenameendorsenent.documentisinformationgivenfortheconvenienceofusersanddoesnotForanexp1.anationofthevo1.untarynatureofstandards,themeaningofISOspecifictermsand幽幽蛔豳酒侬遮W即辆O)assEif1.眦聚inwe帼"1.吼。nBar池帆四dead朝乩CSvbr¼11isoorgisoforeword.htmI.ThisdocumentwaspreparedbyTechnica1.CommitteeISO/190,Soi1.qua1.ity.AnyfeedbackorquestionsonthisdocumentShaUIdWdimU4¼U041.uwwnatk>na1.standardsbody.Acomp1.ete1.istingofthesebodiescanbefoundatwww.iso.org/members.htm1.Introductioninteractionofandatmosphere,changesinweather(i.e.radiationemperaturedrought,humidity,Peakstemperaturevariationsoi1.prof1.ebe1.owthegroundsurface,withthesoi1.temperatureshiftinginMediterraneantemperaturetemperaturefromcan-ISreach40noreatdepthandmorecmdepth.indry1.andsingrowingtemperaturedeco11positionmeasuredorganicmatter,Iatesbiogeochemica1.processesnutrientassimi1.ationprocesses.temperatureisraisedsoi1.appropriatewaterContenteasi1.ydecomposedtemperatureactivatedSincetemperatureaffectsmentionedgrowth.a1.sotemperaturehasinagricu1.tura1.inf1.uenceonandindustriessuccessfu1.1.ygrowingagricu1.tura1.businesses,harvestgreenhouses,contro1.1.ingsoi1.temperaturedepressingandgreendensity.groundwatergroundbeatriggerva1.ues3dimensiona1.1.yfb1.ockss1.rcamsUndergroundandcanacce1.eratorAsPurposcproccdurcwhichsoi1.temperaturemeasurementadependstemperaturcaccuracyrcquircd1.andthedimateexactdisasterprevention,temperaturemeasurementcarefu1.1.ymeasuredtemperatureShou1.dapproximatebut国丽g1.11pmH*1.明B峪依ntinuous1.yinresponsetoc1.imateandmeteoro1.ogica1.changesandtheannua1.cydes.soi1.andirrcgu1.arCpisodicSomeofthefactorsaffectsoi1.C1.oudinessJnc1.udediurna1.andatmospherictemperature,rainfa1.1.,co1.devents).1.andscapeformation,regiona1.dtfTcrences,vegetationandsoi1.managementpracticesbyhumansa1.soaffectsoi1.temperature.Theothermajorinf1.uenceonsoi1.movingdeeperthedepthz.Soi1.temperaturevariationsacrossdayandyearcanbequiteimportantInborea1.conditionswithintheyear,soi1.areas,thecanpasstothan15at5than50ifatthegroundsurface.Withg1.oba1.warming,soi1.temperature1.endsa1.sotoincreaseinthesameorderasatmospherictemperatureasdemonstratedinvariousstudies3).4.Soi1.season,beofsoi1.beingcrucia1.forofminera1.izationandsuch1.engthofbyp1.antsaswe1.1.asp1.antproductivity.Soi1.temperaturechangeswithdepthinf1.uencemanysoi1.characteristics,suchasmicrobia1.activity,chemica1.reactions,nutrientcyc1.ing,andmanyotherwhenthe2Itisknownthatiforganicmatterismoreavai1.ab1.eandbymicrobesstaysinrangefavourab1.eformicrobes.Soi1.temperaturecanthenbeusedasaproxyfortheriskofcarbondioxideemissionfromtarget1.and.Soi1.itdirect1.yis,p1.antear1.ie