BS EN ISO 5350-2-2006 纸浆.污物和碎片的测定.磨碎的片状纸浆的检测

作者:标准资料网 时间:2024-05-07 20:02:04  浏览:8405   来源:标准资料网

【英文标准名称】:Pulps-Estimationofdirtandshives-Inspectionofmillsheetedpulpbytransmittedlight
【原文标准名称】:纸浆.污物和碎片的测定.磨碎的片状纸浆的检测
【标准号】:BSENISO5350-2-2006
【标准状态】:现行
【国别】:英国
【发布日期】:2006-10-31
【实施或试行日期】:2006-10-31
【发布单位】:英国标准学会(BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:弓形的;定义;测定;含量测定;污垢;估计;评定;纤维;杂质;材料试验;方法;纸浆;浆;抽样方法;碎片;试验;试验装置;发射光
【英文主题词】:Arched;Definition;Definitions;Determination;Determinationofcontent;Dirt;Estimation;Evaluations;Fibres;Impurities;Materialstesting;Methods;Paperpulp;Pulp;Samplingmethods;Splinters;Testing;Testingdevices;Tests;Transmittedlights
【摘要】:ThispartofISO5350specifiesamethodfortneestimationbytransmittedlightofthevisibledirtandshivesinpulpmanufacturedinsheets.Itdoesnotapplytounbleachedkraftpulpsortoanyothersheetedpulpsthataretooopaquetoallowfortheestimationoftheminimumsizeorforminimumcontrastspeckstobecounted,inaccordancewiththispartofISO5350.Themaximumgrammageformostpulpsheetsisintherange800g/m2to1000g/m2.Ifthesheetsofthemillsheetedpulphavehighgrammageorareveryopaqueforotherreasons,ISO5350-1shouldbeapplied.NOTEForthicksheets,withhighlytexturedsurfacesand/orwithdensityvariations,wettingthesheetwillcauseopticalvariations,calledlensdistortions,thatwilldistorttheperceivedsizeofadirtspeck,thusreducingtheprecisionofthesizeestimation.Alternatively,useISO5350-1todisintegratethesheetandtopreparelaboratorysheetsforthesizeestimation.ThispartofISO5350isnotintendedforrecycledpulp.
【中国标准分类号】:Y31
【国际标准分类号】:85_040
【页数】:22P;A4
【正文语种】:英语