标准名称：	铝合金三通、四通外螺纹接头
中标分类：	船舶 >> 船舶管路附件 >> 船用管件
发布日期：	1900-01-01
实施日期：	1900-01-01
首发日期：	1900-01-01
作废日期：	1900-01-01
出版日期：	1900-01-01

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【英文标准名称】:StandardTestMethodforSlakeDurabilityofShalesandSimilarWeakRocks
【原文标准名称】:油页岩和类似弱岩石抗崩解持久性的标准试验方法
【标准号】:ASTMD4644-2008
【标准状态】:现行
【国别】:美国
【发布日期】:2008
【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】:D18.12
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:abrasionresistance;shale;slakedurability;weakrocks;Abrasionresistance--soil/rock/relatedmaterials;Durability--soil/rock/relatedmaterials;Rockmaterials/properties/analysis;Shale;Slakedurability;Weakrocks
【摘要】:Thetestmethodisusedtoestimatequalitativelythedurabilityofweakrocksintheserviceenvironment.(1-7).Thistestmethodisusedtoassignquantitativedurabilityvaluestoweakrocks.AprimaryexampleistheFranklinRatingSystem(1).Note18212;Thequalityoftheresultproducedbythisstandardisdependentonthecompetenceofthepersonnelperformingit,andthesuitabilityoftheequipmentandfacilitiesused.AgenciesthatmeetthecriteriaofPracticeD3740aregenerallyconsideredcapableofcompetentandobjectivetesting,sampling,inspection,andsoforth.UsersofthisstandardarecautionedthatcompliancewithPracticeD3740doesnotinitselfassurereliableresults.Reliableresultsdependonmanyfactors;PracticeD3740providesameansofevaluatingsomeofthosefactors.1.1Thistestmethodcoversthedeterminationoftheslakedurabilityindexofashaleorothersimilarrockaftertwodryingandwettingcycleswithabrasion.1.2AllobservedandcalculatedvaluesshallconformtotheguidelinesforsignificantdigitsandroundingestablishedinPracticeD6026.1.2.1Themethodusedtospecifyhowdataarecollected,calculated,orrecordedinthisstandardisnotdirectlyrelatedtotheaccuracytowhichthedatacanbeappliedindesignorotheruses,orboth.Howoneappliestheresultsobtainedusingthisstandardisbeyonditsscope.1.3ThevaluesstatedinSIunitsaretoberegardedasstandard.Thevaluesgiveninparenthesesaremathematicalconversionstoinch-poundunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:P13
【国际标准分类号】:91_100_15
【页数】:4P.;A4
【正文语种】:英语