【英文标准名称】:Materialsandarticlesincontactwithfoodstuffs-Cutleryandtableholloware-Part3:Requirementsforsilver-platedtableanddecorativeholloware(ISO8442-3:1997);GermanversionENISO8442-3:1997
【原文标准名称】:与食品接触的材料和器具.刀具和餐桌器皿.第3部分:镀银餐桌器皿和装饰凹型器皿的要求
【标准号】:ENISO8442-3-1997
【标准状态】:现行
【国别】:
【发布日期】:1998-02
【实施或试行日期】:
【发布单位】:欧洲标准学会(EN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:餐具;材料;凹形餐具;规范;镀银;食品;刀叉(餐具);装饰;食品制作工艺;处理;食物加工器具;试验;规范(验收);定义;切削工具;应用;银;金属;制备;切割装置
【英文主题词】:Cutlery;Cuttingdevice;Cuttingtools;Cuttingwork;Decorations;Definition;Definitions;Flatware;Foodmanufacturingprocesses;Foodpreparationequipment;Foodproducts;Holloware;Hollow-ware;Materials;Metals;Preparations;Processing;Silver;Silver-coated;Specification;Specification(approval);Tableholloware;Tableware;Testing;Use
【摘要】:
【中国标准分类号】:Y68;X09
【国际标准分类号】:67_250;97_040_60
【页数】:13P.;A4
【正文语种】:英语
基本信息
| 标准名称： | 装有无扩口外锥管嘴的１组钢丝编织软管 |
| 中标分类： |
航空、航天 >>
航空器与航天器零部件 >>
管件、卡箍、密封件 |
| 发布日期： | 1994-06-01 |
| 实施日期： | 1994-12-01 |
| 首发日期： | 1900-01-01 |
| 作废日期： | 1900-01-01 |
| 出版日期： | 1900-01-01 |
| 页数： | 1页 |
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： 航空 航天 航空器与航天器零部件 管件 卡箍 密封件
【英文标准名称】:StandardTestMethodforColorofClearLiquids(Platinum-CobaltScale)
【原文标准名称】:透明液体色度的标准试验方法(铂钴标度)
【标准号】:ASTMD1209-2005(2011)
【标准状态】:现行
【国别】:
【发布日期】:2005
【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】:D01.35
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:透明液体;颜色;颜色-有机/无机化合物;铂-鈷比例
【英文主题词】:clearliquids;color;Color--organic/inorganicchemicals;Platinum-cobaltscale
【摘要】:Thepropertyofcolorofasolventvariesinimportancewiththeapplicationforwhichitisintended,theamountofcolorthatcanbetoleratedbeingdependentonthecolorcharacteristicsofthematerialinwhichitisused.Thepaint,varnish,andlacquersolvents,ordiluentscommerciallyavailableontoday''smarketnormallyhavelittleornocolor.Thepresenceorabsenceofcolorinsuchmaterialisanindicationofthedegreeofrefinementtowhichthesolventhasbeensubjectedorofthecleanlinessoftheshippingorstoragecontainerinwhichitishandled,orboth.Foranumberofyearsthetermx201C;water-whitex201D;wasconsideredsufficientasameasurementofsolventcolor.Severalexpressionsfordefiningx201C;water-whitex201D;graduallyappearedanditbecameevidentthatamoreprecisecolorstandardwasneeded.Thiswasaccomplishedin1952withtheadoptionofTestMethodD1209usingtheplatinum-cobaltscale.ThistestmethodissimilartothedescriptiongiveninStandardMethodsfortheExaminationofWaterandWasteWaterandisreferredtobymanyasx201C;APHAColor.x201D;Thepreparationoftheseplatinum-cobaltcolorstandardswasoriginallydescribedbyA.HazenintheAmericanChemicalJournalinwhichheassignedthenumber5(partspertenthousand)tohisplatinum-cobaltstocksolution.Subsequently,intheirfirstedition(1905)ofStandardMethodsfortheExaminationofWater,theAmericanPublicHealthAssociation,usingexactlythesameconcentrationofreagents,assignedthecolordesignation500(partspermillion)whichisthesameratio.Thepartspermillionnomenclatureisnotusedsincecolorisnotreferreddirectlytoaweightrelationship.Itisthereforerecommendedthattheincorrecttermx201C;HazenColorx201D;shouldnotbeused.Also,becauseitrefersprimarilytowater,thetermx201C;APHAColorx201D;isundesirable.Therecommendednomenclatureforreferringtothecoloroforganicliquidsisx201C;Platinum-CobaltColor,TestMethodD1209.x201D;ThepetroleumindustryusestheSayboltcolorimeterTestMethodD156formeasuringanddefiningthecolorofhydrocarbonsolvents;however,thissystemofcolormeasurementisnotcommonlyemployedoutsideofthepetroleumindustry.IthasbeenreportedbyvarioussourcesthataSayboltcolorof+25isequivalentto25intheplatinum-cobaltsystemortocolorsproducedbymassesofpotassiumdichromaterangingbetween4.8and5.6mgdissolvedin1Lofdistilledwater.Becauseofthedifferencesinthespectralcharacteristicsoftheseveralcolorsystemsbeingcomparedandthesubjectivemannerinwhichthemeasurementsaremade,exactequivalenciesaredifficulttoobtain.1.1Thistestmethoddescribesaprocedureforthevisualmeasurementofthecolorofessentiallylightcoloredliquids(Note1).Itisapplicableonlytomaterialsinwhichthecolor-producingbodiespresenthavelightabsorptioncharacteristicsnearlyidenticalwiththoseoftheplatinum-cobaltcolorstandardsused.Note18212;Aprocedureforestimatingcolorofdarkerliquids,describedforsolublenitrocel......
【中国标准分类号】:G51
【国际标准分类号】:87_040
【页数】:4P.;A4
【正文语种】: