作者:标准资料网 时间:2024-05-13 05:31:20   浏览:8147   来源:标准资料网

【英文标准名称】:Plastics-Determinationofapparentdensityofmaterialthatcanbepouredfromaspecifiedfunnel
【原文标准名称】:塑料.可由专用漏斗注入的材料的表观密度测定
【标准号】:BSENISO60-2000
【标准状态】:现行
【国别】:英国
【发布日期】:1978-03-31
【实施或试行日期】:1978-03-31
【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】:粒状材料;塑料;设计;模制;塑料和橡胶技术;尺寸;密度测量;试验设备;高聚物
【英文主题词】:Bulkdensity;Definition;Definitions;Density;Densitymeasurement;Determination;Determinationprocedures;Funnels(laboratory);Inspection;Mouldingmaterials;Mouldings(shapedsection);Physicaltesting;Plastics;Pourtest;Testequipment;Testing;Tests
【摘要】:1ThisInternationalStandardspecifiestwoempiricalmethodsforthequantitativedeterminationofthelossofmassfromaplasticmaterialunderdefinedconditionsoftimeandtemperature,inthepresenceofactivatedcarbon.2Thesemethodsareused,inparticular,forthequantitativedeterminationofthelossonheatingofplasticizersfromplasticizedplasticmaterialsinwhichcaseitisgenerallyassumedthatnosignificantamountsofothervolatilematerialsarepresent.3Theseareempiricaltestmethods,onlysuitableforaratherrapidcomparisonofthelossesofplasticizersor,ingeneral,ofvolatilecompounds,fromdifferentplastics.4Theymayalsobeemployedforthecomparisonofdifferenttypesofplasticizers;inthiscasestandardcompoundsshouldbeprepared,onthebasisofawellcharacterizedresin,withknownratiosofresintoplasticizer.NOTE—Thesecomparisonsarepossibleonlyifthetestspecimensareofthesamethickness.Ifitcanbeassumedthat,afterrecon-ditioning,themoisturecontentoftheexposedspecimensisequaltothatobtainingaftertheoriginalconditioning,theeffectofmoisturemaybeignored.5Twomethodsarespecified:MethodA:thetestspecimensareindirectcontactwiththecarbon;thismethodisparticularlyusefulformaterialswhichhavetobetestedatrelativelylowtemperaturesbecausetheyflowathighertemperatures.MethodB:thetestspecimensareplacedinwirecageswhichpreventdirectcontactbetweenthetestspecimensandthecarbon.
【中国标准分类号】:G31
【国际标准分类号】:83_080_01
【页数】:8P.;A4
【正文语种】:英语