SAE AS157 Hose Assembly, PTFE, Cres Reinforced, 3000 psi, 400 掳F, 45掳 to 90掳, Flared, Lightweight
作者:标准资料网 时间:2024-05-18 23:02:27 浏览:9605
来源:标准资料网
Product Code:SAE AS157
Title:Hose Assembly, PTFE, Cres Reinforced, 3000 psi, 400 掳F, 45掳 to 90掳, Flared, Lightweight
Issuing Committee:G-3, Aerospace Couplings, Fittings, Hose, Tubing Assemblies
Scope:No scope available.
上一篇:
SAE AS155 Hose Assembly, PTFE, Cres Reinforced, 3000 psi, 400 掳F, Straight to 90掳, Flared, Lightweight下一篇:
SAE AS158 Hose Assembly, PTFE, Cres Reinforced, 3000 psi, 400 掳F, 90掳 to 90掳, Flared, Lightweight
基本信息
| 标准名称： | 油气管道地质灾害风险管理技术规范 |
| 发布部门： | 国家能源局 |
| 发布日期： | 2011-07-28 |
| 实施日期： | 2011-11-01 |
| 首发日期： | |
| 作废日期： | |
| 出版社： | 石油工业出版社 |
| 出版日期： | 2011-11-01 |
适用范围
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前言
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目录
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引用标准
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所属分类： 综合 社会公共安全 安全防范报警系统 环保 保健与安全 犯罪行为防范
【英文标准名称】:StandardTestMethodforMeasurementofSoilPotential(Suction)UsingFilterPaper
【原文标准名称】:使用滤纸测定土壤潜性(抽吸)的标准试验方法
【标准号】:ASTMD5298-2010
【标准状态】:现行
【国别】:美国
【发布日期】:2010
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:D18.04
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:filterpaper;soilrelativehumidity;soilsuction;:Filters/filterprocedures;Pore-water;Soil;Soilrelativehumidity;Soilsuction
【摘要】:Soilsuctionisameasureofthefreeenergyofthepore-waterinasoil.Soilsuctioninpracticaltermsisameasureoftheaffinityofsoiltoretainwaterandcanprovideinformationonsoilparametersthatareinfluencedbythesoilwater;forexample,volumechange,deformation,andstrengthcharacteristicsofthesoil.Soilsuctionisrelatedwithsoilwatercontentthroughwaterretentioncharacteristiccurves(seeTestMethodsD6836).SoilwatercontentmaybefoundfromTestMethodD2216.Measurementsofsoilsuctionmaybeusedwithothersoilandenvironmentalparameterstoevaluatehydrologicprocesses(1)andtoevaluatethepotentialforheaveorshrinkage,shearstrength,modulus,insitustressandhydraulicconductivityofunsaturatedsoils.Thefilterpapermethodofevaluatingsuctionissimpleandeconomicalwitharangefrom10to100000kPa(0.1to1000bars).Note18212;Thequalityoftheresultproducedbythisstandardisdependentonthecompetenceofthepersonnelperformingit,andthesuitabilityoftheequipmentandfacilitiesused.AgenciesthatmeetthecriteriaofPracticeD3740aregenerallyconsideredcapableofcompetentandobjectivetesting/sampling/inspection/etc.UsersofthisstandardarecautionedthatcompliancewithPracticeD3740doesnotinitselfassurereliableresults.Reliableresultsdependonmanyfactors;PracticeD3740providesameansofevaluatingsomeofthosefactors.1.1Thistestmethodcoverslaboratoryfilterpapersaspassivesensorstoevaluatethesoilmatric(matrix)andtotalpotential(suction),ameasureofthefreeenergyofthepore-waterortensionstressexertedonthepore-waterbythesoilmatrix(1,2).Thetermpotentialorsuctionisdescriptiveoftheenergystatusofsoilwater.1.2Thistestmethodcontrolsthevariablesformeasurementofthewatercontentoffilterpaperthatisindirectcontactwithsoilorinequilibriumwiththepartialpressureofwatervaporintheairofanairtightcontainerenclosingasoilspecimen.Thefilterpaperisenclosedwithasoilspecimenintheairtightcontaineruntilmoistureequilibriumisestablished;thatis,thepartialpressureofwatervaporintheairisinequilibriumwiththevaporpressureofpore-waterinthesoilspecimen.1.3Thistestmethodprovidesaprocedureforcalibratingdifferenttypesoffilterpaperforuseinevaluatingsoilmatricandtotalpotential.1.4ThevaluesstatedinSIunitsaretoberegardedasstandard.Theinch-poundunitsgiveninparenthesesareapproximate.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:B11
【国际标准分类号】:13_080_05
【页数】:6P.;A4
【正文语种】:英语
