(Note1)标准水MT18(备注1)APPARATUS仪器Stopperedmeasuringcylinder100ml,BS604;1982;ifpossibleselectonewhosevolume,betweenthe100mlgraduationmarkandthebottomofthestopper,isnotmorethan40mlandnotlessthan35ml(Note2).具塞量筒100ml,BS604;1982;最好选择100ml刻度线和瓶塞底部之间距离为35-40ml的具塞量筒。(备注2)Weighingbottle称量瓶PROCEDURE操作步骤WeighoutthespecifiedamountofthematerialandaddittoStandardWater(95ml)(Note3).(Note4).称取定量的样品加入到装有95ml标准水的量筒内,然后再用标准水补足至量筒刻度线处。将量筒盖上塞子后上下颠倒30次(备注3)。在工作台上静置一定时间后,记录泡沫体积(备注4)。。,上下颠倒30次,然后测量一定时间后剩余的泡沫量。REAGENT试剂StandardWaterMT18(Note1)标准水MT18(备注1)Graduatedcylinderglassstoppered,250mlcapacitywith2mlgraduations,thedistancebetweenthe0markandthe250mlmarkbeing20-,andbetweenthe250mlmarkandthebottomofthestopper,4-6cm(SeeFig50,MT161)(Note2).250ml具塞量筒,最小刻度2ml,0刻度线至250ml刻度线之间的距离为
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