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【英文标准名称】:StandardTestMethodforLaboratoryEvaluationofMagnesiumSacrificialAnodeTestSpecimensforUndergroundApplications
【原文标准名称】:地下设备用镁电镀阳极试样实验室评价的标准试验方法
【标准号】:ASTMG97-1997(2007)
【标准状态】:现行
【国别】:美国
【发布日期】:1997
【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】:G01.10
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:coulometer;electroplater'stape;sacrificialanode;Amperehours;Anodes;Backfill--testing;Corrosion;Currentmeasurement;Electrodes;Laboratoryanalysis/evaluation;Magnesium;Magnesiumanodes;Oxidationtesting;Performance--metals/alloysmaterial
【摘要】:Thistestisaguideforevaluatingmagnesiumanodes.Thedegreeofcorrelationbetweenthistestandserviceperformancehasnotbeenfullydetermined.1.1Thistestmethodcoversalaboratoryprocedurethatmeasuresthetwofundamentalperformancepropertiesofmagnesiumsacrificialanodetestspecimensoperatinginasaturatedcalciumsulfate,saturatedmagnesiumhydroxideenvironment.Thetwofundamentalpropertiesareelectrode(oxidationpotential)andamperehours(Ah)obtainedperunitmassofspecimenconsumed.Magnesiumanodesinstalledundergroundareusuallysurroundedbyabackfillmaterialthattypicallyconsistsof75%gypsum(CaSO4x00B7;2H2O),20%bentoniteclay,and5%sodiumsulfate(Na2SO4).Thecalciumsulfate,magnesiumhydroxidetestelectrolytesimulatesthelongtermenvironmentaroundananodeinstalledinthegypsum-bentonite-sodiumsulfatebackfill.1.2Thistestmethodisintendedtobeusedforqualityassurancebyanodemanufacturersoranodeusers.However,longtermfieldperformancepropertiesmaynotbeidenticaltopropertymeasurementsobtainedusingthislaboratorytest.Note18212;RefertoTerminologyG15fortermsusedinthistestmethod.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Forspecificprecautions,SeeSection7andParagraph8.1.1.
【中国标准分类号】:A29
【国际标准分类号】:77_150_20
【页数】:4P.;A4
【正文语种】:英语