饲料原料的鉴别范文

日本发动了蓄谋已久的侵华战争.这场侵略战争给中国人民带来了空前的灾难和损失,也给后人留下了深刻的历史血鉴ofsupportandhanger.Cableholeplugginggapsshouldusequalifiedfireproofmaterials,blocksurfaceshouldhavesufficientstrength,surfaceappearance.Whencablespassthroughthefirewall,oflaxstructureoflocalfiresafetyclamps.Thermoplasticsproduction,tocomplywiththeprocess,nobubblesinthethermoplasticspipes,linearnoseconsistentwiththecorewirespecifications,contactisgood,nocracks,break.Tinnedcoppernosecleansolderfullexteriorsurfaceissmoothwithoutburrs.ControlcableAssemblyshouldbefastened,dense,solid,clean,andbeautiful.Secondarywiringthecableterminationsshouldbearrangedbytheactuallocationofthedevicelinecards,thewiringfromtheuppertothelower,fromlefttorightintheorder.Fixedtomaintainconsistentspacingbetweenlines,flat,shouldbearoundthecornerinthesamelocation,sameshape,toensurethatthewiringprocessneaterandmoreelegant.5thermalprocesscontrolmeasuresforqualityproblems5.1controlthermalductsystemleakagemeasuretoensurethattheuseofelectricdoorandactuatorinstallationqualityandequipmenttothesitetocheckitsseal,acceptance,inordertofundamentallysolveoilspillproblems.PlantforlocalPanelafterinstallation,inconjunctionwiththequalityDepartmenttocheckitsoverallquality,poor-qualitypartsreplacement.Supplygoodqualityofpurchasinginstrumentandovalityoftheguaranteeinstrumenttubesassmallaspossible,selectionofhighquality,highprecisionsleeveconnector.Instrumentpipewelding,constructionworkersandtechniciansoneveryroad,everyinstrumentaswellrecordedandwellidentifiedintheinstrument,weldingweldingfollowingtheendofeachreview,responsibilityandpreventionofwelding,weldingwrong.Requirementsforweldingpersonnelcertified,andweldingbeforeweldingtraining,selectskillsgoodsensetocarryoutconstruction,weldingqualityinspectionandacceptanceeverydaytoensurethatthewelding...Allunreleasedmaterialsampling,invitedsupervisionengineersarrivedatthescene,afterconfirmationbythesupervisingengineer,sealimmediatelysentauthorizedbodiesinaccordancewiththerequestedtestindicatortest,accordingtotheinspectionreportandapprovedbythesupervisingengineertoreviewandthentransportedfortheconstruction.Amountofinsulationmaterialsshall饲料原料的鉴别一．真假豆粕的鉴别外观鉴别法对饲料的形状、颗粒大小、颜色、气味、质地等指标进行鉴别。豆粕呈片状或粉状，有豆香味。纯豆粕呈不规则碎片状，浅黄色到淡褐色，色泽一致，偶有少量结块，闻有豆粕固有豆香味。反之，如果颜色灰暗、颗粒不均、有霉变气味的，不是好豆粕。而掺入了沸石粉、玉米等杂质后，颜色浅淡，色泽不一，结块多，可见白色粉末状物，闻之稍有豆香味，掺杂量大的则无豆香味。如果把样品粉碎后，再与纯豆粕比较，色差更是显而易见。在粉碎过程中，假豆粕粉尘大，装入玻璃窗口中粉尘会粘附于瓶壁，而纯豆粕无此现象。用牙咬豆粕发粘，玉米粉则脆而有粉末。外包装检查法颗粒细、容量大、价格廉，这是绝大多数掺杂物所共同的特点。饲料中掺杂了这类物质后，必定是包装体积小，而重量增加。豆粕通常以60公斤包装，而掺入了大量沸石之类物质后，包装体积比正常小。豆粕（饼）水浸法取需检验的豆粕（饼）25克，放入盛有250毫升水的玻璃杯中浸泡2-3小时，然后用手轻轻摇晃则可看出豆粕（碎饼）与泥沙分层，上层为豆粕，下层为泥沙。显微镜检查法取待检样品和纯豆粕样品各一份，置于培养皿中，并使之分散均匀，分别放于显微镜下观察。在显微镜下可观察到：纯豆粕外壳内外表面光滑,有光泽，并有被针刺时的印记，豆仁颗粒无光泽，不透明，呈奶油色；玉米粒皮层光滑，并半透明，并带有似指甲纹路和条纹，这是玉米粒区别于豆仁的显着特点。另外，玉米粒的颜色也比豆仁深，呈桔红色。碘酒鉴别法日本发动了蓄谋已久的侵华战争.这场侵略战争给中国人民带来了空前的灾难和损失,也给后人留下了深刻的历史血鉴ofsupportandhanger.Cableholeplugginggapsshouldusequalifiedfireproofmaterials,blocksurfaceshouldhavesufficientstrength,surfaceappearance.Whencablespassthroughthefirewall,oflaxstructureoflocalfiresafetyclamps.Thermoplasticsproduction,tocomplywiththeprocess,nobubblesinthethermoplasticspipes,linearnoseconsistentwiththecorewirespecifications,contactisgood,nocracks,break.Tinnedcoppernosecleansolderfullexteriorsurfaceissmoothwithoutburrs.ControlcableAssemblyshouldbefastened,dense,solid,clean,andbeautiful.Secondarywiringthecableterminationsshouldbearrangedbytheactuallocationofthedevicelinecards,thewiringfromtheuppertothelower,fromlefttorightintheorder.Fixedtomaintainconsistentspacingbetweenlines,flat,shouldbearoundthecornerinthesamelocation,sameshape,toensurethatthewiringprocessneaterandmoreelegant.5thermalprocesscontrolmeasuresforqualityproblems5.1controlthermalductsystemleakagemeasuretoensurethattheuseofelectricdoorandactuatorinstallationqualityandequipmenttothesitetocheckitsseal,acceptance,inordertofundamentallysolveoilspillproblems.PlantforlocalPanelafterinstallation,inconjunctionwiththequalityDepartmenttocheckitsoverallquality,poor-qualitypartsreplacement.Supplygoodqualityofpurchasinginstrumentandovalityoftheguaranteeinstrumenttubesassmallaspossible,selectionofhighquality,highprecisionsleeveconnector.Instrumentpipewelding,constructionworkersandtechniciansoneveryroad,everyinstrumentaswellrecordedandwellidentifiedintheinstrument,weldingweldingfollowingtheendofeachreview,responsibilityandpreventionofwelding,weldingwrong.Requirementsforweldingpersonnelcertified,andweldingbeforeweldingtraining,selectskillsgoodsensetocarryoutconstruction,weldingqualityinspectionandacceptanceeverydaytoensurethatthewelding...Allunreleasedmaterialsampling,invitedsupervisionengineersarrivedatthescene,afterconfirmationbythesupervisingengineer,sealimmediatelysentauthorizedbodiesinaccordancewiththerequestedtestindicatortest,accordingtotheinspectionreportandapprovedbythesupervisingengineertoreviewandthentransportedfortheconstruction.Amountofinsulationmaterialsshall取少许豆粕（饼）放在干净的瓷盘中，铺薄铺平，在其上面滴几滴碘酒，过1分钟，其中若有物质变成蓝黑色，说明掺有玉米、麸皮、稻壳等。容重测量鉴别法饲料原料都有一定的容重，如果有掺杂物，容重就会发生改变。因此，测定容重也是判断豆粕是否掺假的方法之一。具体方法为：用四分法取样，然后将样品非常轻而仔细地放