HG 5-38-1979 搪玻璃蒸馏罐
时间:2024-05-19 21:20:45 来源: 标准资料网 作者：标准资料网 阅读：8726
基本信息
| 标准名称： | 搪玻璃蒸馏罐 |
| 中标分类： |
化工 >>
化工机械与设备 >>
非金属化工机械设备 |
| 替代情况： | 被HG/T 3126-98代替 |
| 发布日期： | |
| 实施日期： | 2003-06-01 |
| 首发日期： | |
| 作废日期： | 1998-10-01 |
| 出版日期： | |
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所属分类： 化工 化工机械与设备 非金属化工机械设备
【英文标准名称】:Bindersforpaintsandvarnishes-Determinationofacidvalue-Titrimetricmethod
【原文标准名称】:涂料和清漆用粘合剂.酸值测定.滴定法
【标准号】:BSENISO3682-1996
【标准状态】:现行
【国别】:英国
【发布日期】:1996-11-15
【实施或试行日期】:1996-11-15
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:酸值;分析;粘合剂;化学分析和测试;化学指数;涂层材料;定义;定义(术语);脂肪;脂肪酸;材料;材料测试;油;涂料;增塑剂;塑料;抽样方法;溶剂;试验;滴定法;清漆;容量分析
【英文主题词】:Acidnumber;Analysis;Bindingagents;Chemicalanalysisandtesting;Chemicalindices;Coatingmaterials;Definition;Definitions;Fats;Fattyacids;Materials;Materialstesting;Oils;Paints;Plasticizers;Plastics;Samplingmethods;Solvents;Testing;Titrimetry;Varnishes;Volumetricanalysis
【摘要】:Specifiesatitrimetricmethodfordeterminingtheacidvalueofbindersforpaintsandvarnishes.Itisnotapplicabletophenolicresins.Replacesthesecondedition.
【中国标准分类号】:G52
【国际标准分类号】:87_060_20
【页数】:12P.;A4
【正文语种】:英语
【英文标准名称】:SpecificationforReagentWater
【原文标准名称】:化学试剂水规范
【标准号】:ANSI/ASTMD1193-1999
【标准状态】:作废
【国别】:美国
【发布日期】:1999
【实施或试行日期】:
【发布单位】:美国国家标准学会(ANSI)
【起草单位】:ANSI
【标准类型】:()
【标准水平】:()
【中文主题词】:化学试剂;药液;试剂;水
【英文主题词】:Chemicalreagents;Chemicals;Reagents;Water
【摘要】:Thisspecificationcoversrequirementsforwatersuitableforuseinmethodsofchemicalanalysisandphysicaltesting.Fourgradesarespecified:TypeITypeIITypeIIITypeIVElectricalconductivity,max,?S/cmat298K(25?C)0.0561.00.255.0Electricalresistivity,min,Mcmat298K(25?C)181.04.00.2pHat298K(25?C)AAA5.0to8.0Totalorganiccarbon(TOC),max,?g/L5050200nolimitSodium,max,?g/L151050Chlorides,max,?g/L151050Totalsilica,max,?g/L33500nolimitMicrobiologicalcontamination-Whenbacteriallevelsneedtobecontrolled,reagentgradetypesshouldbefurtherclassifiedasfollows:TypeATypeBTypeCMaximumheterotrophicbacteriacount10/1000mL10/100mL100/10mLEndotoxin,EU/mlB0.030.25notapplicableAThemeasurementofpHinTypeI,II,andIIIreagentwatershasbeeneliminatedfromthisspecificationbecausethesegradesofwaterdonotcontainconstituentsinsufficientquantitytosignificantlyalterthepH.BEU=EndotoxinUnits.Themethodofpreparationofthevariousgradesofreagentwaterdeterminesthelimitsofimpuritiesandshallbeasfollows:TypeIgradeofreagentwatershallbepreparedbydistillationorotherequalprocess,followedbypolishingwithamixedbedofionexchangematerialsanda0.2-?mmembranefilter.Feedwatertothefinalpolishingstepmusthaveamaximumconductivityof20?S/cmat298K(25?C).TypeIIgradeofreagentwatershallbepreparedbydistillationusingastilldesignedtoproduceadistillatehavingaconductivityoflessthan1.0?S/cmat298K(25?C).Ionexchange,distillation,orreverseosmosisandorganicadsorptionmayberequiredpriortodistillationifthepuritycannotbeattainedbysingledistillation.Note1-Becausedistillationisaprocesscommonlyreliedupontoproducehighpuritywater,thelevelsspecifiedforTypeIIreagentwaterwereselectedtorepresenttheminimumqualityofwaterthatadistillationprocessshouldproduce.TypeIIIgradeofreagentwatershallbepreparedbydistillation,ionexchange,continuouselectrodeionizationreverseosmosis,oracombinationthereof,followedbypolishingwitha0.45-?mmembranefilter.1.2.4TypeIVgradeofreagentwatermaybepreparedbydistillation,ionexchange,continuouselectrodeionizationreverseosmosis,electrodialysis,oracombinationthereof.Thechoiceofoneofthevariousgradesmaybedesignatedbythemethodorbytheinvestigator.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:G77
【国际标准分类号】:71_040_30
【页数】:
【正文语种】:英语