GB 7853-1987 森林土壤有效磷的测定
作者:标准资料网 时间:2024-05-17 12:51:53 浏览:8703
来源:标准资料网
基本信息
标准名称: | 森林土壤有效磷的测定 |
中标分类: |
农业、林业 >>
土壤与肥料 >>
土壤、肥料综合 |
替代情况: | 调整为LY/T 1233-1999 |
发布日期: | 1900-01-01 |
实施日期: | 1988-01-01 |
首发日期: | 1900-01-01 |
作废日期: | 1900-01-01 |
出版日期: | 1900-01-01 |
页数: | 3页 |
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: 农业 林业 土壤与肥料 土壤 肥料综合
【英文标准名称】:Vocabularyfortherefractoriesindustry.Part6:characteristicsandmethodsoftests.
【原文标准名称】:耐火材料工业词汇.第6部分:特性和试验方法
【标准号】:NFB40-016-1959
【标准状态】:现行
【国别】:法国
【发布日期】:1959-03-01
【实施或试行日期】:
【发布单位】:(FR-AFNOR)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:Definitions;Furnaces;Heatresistance;Industries;Refractorymaterials;Refractoryproducts;Terminology;Vocabulary
【摘要】:
【中国标准分类号】:Q40
【国际标准分类号】:01_040_81;81_080
【页数】:12P.;A4
【正文语种】:其他
【英文标准名称】:StandardReferenceRadiographsforDuctileIronCastings
【原文标准名称】:球墨铸铁件的标准参考底片
【标准号】:ASTME689-2010
【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】:E07.02
【标准类型】:(Specification)
【标准水平】:()
【中文主题词】:
【英文主题词】:classification;discontinuity;ductileironcastings;gammaray;referenceradiographs;X-ray;Castiron(testing)--referenceradiographs;Discontinuities--metals/alloys;Ductileironcastings;Radiographicexamination;Referenceradiographs
【摘要】:Thecastingprocesshasdemonstratedradiographicsimilaritiesbetweeninternaldiscontinuitiesforductilecastironandcaststeeltotheextentthatthereferenceradiographsforsteelcastingsareapplicable.Theexactapplicationandusageofdiscontinuityclassificationscontainedwithinsteelcastingreferenceradiographsmust,however,giveconsiderationtothedifferencesinmaterialpropertiesbetweencaststeelandductilecastiron.Insomeapplications,referenceradiographsforsteelcastingsmaynotbeentirelyapplicabletoductilecastironmaterialdependentupondesignorotherusagecriteria.Whenemployingsteelcastingreferenceradiographstoevaluateductileironcastings,theapplicableE446,E186,orE280steelcastingwrittenstandardshallalsobeusedforspecificguidanceandevaluationprocedures.Thesereferenceradiographsareintendedasabasisfromwhichmanufacturersandpurchasersmay,bymutualagreement,selectparticulardiscontinuityclassestoserveasstandardsrepresentingminimumlevelsofacceptability.Referenceradiographsrepresentedbythesesteelcastingstandardsmaybeused,asagreeduponinapurchasersupplieragreement,forradiationenergylevels,thicknessesorbothoutsidetherangeofthesestandardswhendeterminedapplicableforthecastingserviceapplication1.1ThisstandardextendstheapplicationofsteelcastingreferenceradiographsE446,E186,andE280toductileironcastingswhendeterminedappropriateforspecificapplications(seeSection4).1.2ThereferenceradiographfilmsareanadjuncttoE446,E186,orE280,andmustbepurchasedseparatelyfromASTMInternational,ifneeded(see2.1).Categoriesandseveritylevelsforeachdiscontinuitytyperepresentedbythesereferenceradiographsaredescribedwithineachapplicablestandardabove.Note18212;ThebasisofapplicationforthesereferenceradiographsrequiresapriorpurchasersupplieragreementofradiographicexaminationattributesandclassificationcriterionasdescribedinSections4,5,and6ofthisstandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:J31
【国际标准分类号】:77_080_10
【页数】:3P.;A4
【正文语种】:英语