ASTM D 4890-1998 聚氨基甲酸乙酯原材料的标准试验方法:多元醇的加德内尔(Gardner)和APHA颜色测定
作者:标准资料网 时间:2024-04-30 02:42:16 浏览:9994
来源:标准资料网
【英文标准名称】:StandardTestMethodsforPolyurethaneRawMaterials:DeterminationofGardnerandAPHAColorofPolyols
【原文标准名称】:聚氨基甲酸乙酯原材料的标准试验方法:多元醇的加德内尔(Gardner)和APHA颜色测定
【标准号】:ASTMD4890-1998
【标准状态】:作废
【国别】:美国
【发布日期】:1998
【实施或试行日期】:
【发布单位】:美国材料与试验协会(ASTM)
【起草单位】:ASTM
【标准类型】:()
【标准水平】:()
【中文主题词】:聚酯树脂;比色法;试验
【英文主题词】:Colorimetry;Polyesterresins;Testing
【摘要】:
【中国标准分类号】:G31
【国际标准分类号】:83_040_30;83_080_20
【页数】:4P;A4
【正文语种】:英语
【英文标准名称】:StandardTestMethodforDeterminingFormaldehydeConcentrationsinAirandEmissionRatesfromWoodProductsUsingaLargeChamber
【原文标准名称】:确定的试验条件下用大容器测定木制品甲醛量的测试方法
【标准号】:ASTME1333-1996(2002)
【标准状态】:现行
【国别】:
【发布日期】:1996
【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】:D07.03
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:木制品;甲醛释出;测试方法
【英文主题词】:chromotropicacidanalysis;concentrationinair;emissionrate;formaldehyde;largechamber;woodproductscontainingformaldehyde
【摘要】:1.1Thistestmethodmeasurestheformaldehydeconcentrationinairandemissionratefromwoodproductscontainingformaldehydeunderconditionsdesignedtosimulateproductuse(see11.5andNote7).Theconcentrationinairandemissionrateisdeterminedinalargechamberunderspecifictestconditionsoftemperatureandrelativehumidity.Thegeneralproceduresarealsointendedfortestingproductcombinationsatproduct-loadingratiosandatair-exchangeratestypicaloftheindoorenvironment(1).Theproductstested,theloadingratiosandtheairexchangeratesemployedaredescribedinthetestreport.1.2Thistestmethoddeterminestheaverageformaldehydeconcentrationinairandemissionratefromanumberoflargesizesamples.Theaverageconcentrationandemissionratereported,thus,willnotprovideinformationonhigherorloweremittingpanelsinthetestlot.1.3Thismethodisprimarilyusedfortestingnewlymanufacturedpanelproductsthatareshippedfortestingeitherseal-wrappedinpolyethyleneorwithwastersheets,orwithboth.Whenthistestmethodisusedforevaluatingotherthannewlymanufacturedpanelproducts(afteroriginalapplication,installationoruse),themethodofpackagingandshippingtheproductfortestingshallbedescribedinthetestreport.1.4ThequantityofformaldehydeintheairsampletakenfromthechamberisdeterminedbyanadaptationoftheNationalInstituteforOccupationalSafetyandHealth(NIOSH)3500chromotropicacidtestprocedure.Ifanotheranalyticalprocedureisusedtodeterminethequantityofformaldehydeintheairsample,thatprocedureshallgiveresultsofequivalentorgreateraccuracyandprecisionthantheadaptedchromotropicacidprocedure.Detailedproceduresbasedonacetylacetone,pararosaniline(seeTestMethodD5221),2,4-dinitrophenylhydrazine(DNPH)(seeTestMethodD5197)and3-methyl-2-benzothiazoline(MBTH)(seeTestMethodD5014)havebeenfoundtogiveresultsequivalentorgreaterinaccuracyandprecisionthanchromotropicacid.Thetestreportshallnotetheanalyticalprocedureemployed.Note18212;Thechromotropicacidanalyticalproceduredescribedinthistestmethodisapplicablefortestingurea-formaldehydebondedwoodproducts.AccordingtoNIOSH(4thEdition,8/15/94)thelowendoftheworkingrangeforthechromotropicacidanalyticalprocedureis0.02ppm.Amoresensitiveanalyticalprocedureisrecommendedfortestingwoodpanelproductswhereformaldehydeconcentrationsinairareanticipatedtobeatorbelowthislevel.DNPHisrecognizedassuchamethod.1.5ThistestmethodisusedtodeterminecompliancewithrequirementssuchasthoseestablishedforbuildingmaterialsbytheU.S.DepartmentofHousingandUrbanDevelopmentRulesandRegulations24CFR3280formanufacturedhousingandbyMinnesotaStatutesSection144.495.Measurementresultsarealsousedforcomparingconcentrationsinairandemissionratesfromdifferentwoodproducts(2)andfordeterminingcompliancewithproductstandards.1.6ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.7Thistestmethodisnotdesignedfordetermininggeneralorganicemissionsfromallindoormaterialsandproducts.Note28212;ASTMCommitteeD22hasdevelopedGuideD5116whichdescribessmall-scaleenvironmentalequipmentandtechniquessuitablefordeterminingorganicemissionsandemissionratesfrommaterialsandproductsusedindoors.1.8Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Forspecifichazardstatements,seeSection7.
【中国标准分类号】:B60
【国际标准分类号】:79_060_20
【页数】:12P.;A4
【正文语种】:
基本信息
| 标准名称： | 无公害蜂产品蜜蜂生产与质量 |
| 发布部门： | 四川省质量技术监督局 |
| 发布日期： | 2007-12-01 |
| 实施日期： | 2008-06-15 |
| 首发日期： | |
| 作废日期： | |
| 出版社： | 中国标准出版社 |
| 出版日期： | 2008-06-15 |
适用范围
没有内容
前言
没有内容
目录
没有内容
引用标准
没有内容
所属分类： 化工 化肥 农药 化肥基础标准与通用方法 农业 肥料
