YY/T 1155-2009 全自动发光免疫分析仪
作者:标准资料网 时间:2024-05-13 19:40:54 浏览:9282
来源:标准资料网
基本信息
标准名称: | 全自动发光免疫分析仪 |
发布部门: | 国家食品药品监督管理局 |
发布日期: | 2009-12-30 |
实施日期: | 2011-06-01 |
首发日期: | |
作废日期: | |
出版社: | 中国医药科技出版社 |
出版日期: | 2011-06-01 |
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所属分类: 食品 食品发酵 酿造 食品发酵 酿造综合 食品技术 谷物 豆类及其制品
基本信息
标准名称: | 万能工具铣床 精度 |
中标分类: |
机械 >>
金属切削机床 >>
钻、镗、铣床 |
替代情况: | 被JB/T 2874-94代替 |
发布日期: | |
实施日期: | 1986-10-01 |
首发日期: | |
作废日期: | |
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所属分类: 机械 金属切削机床 钻 镗 铣床
【英文标准名称】:StandardTestMethodforColorDevelopmentinTintedLatexPaints
【原文标准名称】:有色乳胶涂料显色的标准试验方法
【标准号】:ASTMD5326-1994a(2009)
【标准状态】:现行
【国别】:美国
【发布日期】:1994
【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】:D01.42
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:color;colordevelopment;coloruniformity;colorants;tintability;Color--paints/relatedcoatings/materials;Colorants;Colordevelopment/uniformity;Latexpaints;Tintability;Tintingstrength
【摘要】:Acolorantsometimesfailstodispersecompletelyinabasepaintduetopoorcompatibility,whichcanbethefaultofthecolorant,thepaint,orboth.Thiswillresultinpoorcolordevelopment,whichisreadilymanifestedbythecommonprocedureofapplyingthepaintwithadoctorbladeandsubjectingthedrawdowntohighshearstressbyfinger-rubbingasmallareaofthepartiallydryfilm.Thistendstodisperseundevelopedcolorant,ifany,andproducesacolorvariationbetweentheunshearedandshearedareasofthepaintfilm.Thevariationcanbemeasuredcolorimetricallytogiveanumericalcolordifferencevaluethatisameasureofthecolordevelopmentoftheoriginalpaint,thesmallerthedifferencethebetterthecolordevelopmentandviceversa.Colordifferencevaluesobtainedbyfinger-rubbingwerefoundtovarywidelyforthesameaswellasamongdifferentoperators.Thistestmethodestablishesacontrolledshear-stressprocedureanalogoustothefingerrub-uptest,butwithfarbetterreproducibility.Poorcolordevelopmentcanbeaproblemintheproductionofpaints,andintheirperformanceinthefield.Inproductionitcausesalossofcolorantmonetaryvalue,andunpredictabletintingresults.Infieldperformanceitresultsincolorvariationsintheappliedpaintfilmduetothevaryingshearforcestowhichthepaintissubjectedatdifferentstagesorbydifferentmodesofapplication.Althoughpoorcolordevelopmentisprimarilyandmostoftenrelatedtothecolorantportionofatintedpaint,thewhitepigmentinthebasepaintcanalsobepoorlydevelopedduetoflocculationorothercauses.Inthelattercase,sheardispersioncanmakethepaintfilmlighterandlesscolorful,ratherthanthereverse.Thentoo,thecolorantandthewhitemightbothbepoorlydeveloped,andthecolorchangeduetoshearstresswouldthenbethecombinedeffectofboth.Inanycase,colordevelopmentisanimportantpaintproperty,forthemeasurementofwhichthistestmethodisintendedtoprovideagenerallyacceptedandreproducibletestmethod.1.1Thistestmethodcoversaprocedureformeasuringcolordevelopmentintintedlatexpaints,forthepurposeofdeterminingtheefficiencyofcolorants,thetintabilityofbasepaintsandthepotentialforpoorcoloruniformityofappliedpaintfilms.1.2Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:G38
【国际标准分类号】:87_040
【页数】:3P.;A4
【正文语种】:英语