Description/Specifications | |
PolyurethaneCleanRoomChairChrometoDeskHeight17to22in | |
OurcleanroomchairshavebeentestedtoFedStd.209EandISO14644-1requirements(Class10/ISOClass4).Optional6-wayadjustablearmrestssupportavarietyofarmplacementsforproperergonomics(NOTE:AddingarmschangestheclassificationtoClass100/ISOClass5).Ourpolyurethanechairsarefullywashable,makingthemidealforalmostanyenvironment.Choosefromchromehoodedrolling,non-marringcastersorblack,non-marringbellglidesonapolishedcastaluminumbase.Optionalseattiltprovides8°forwardand3°backwardlockingtiltforergonomicposturesupport.Eachergonomiccleanroomchairisbackedbyour15-yearwarranty,lifetimeonthepneumaticlift.
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D,K2SO4Na2CO3BaCL2NaNO3
A.H2SO4Na2SO4AgNO3BaCl2.
B.NaOHNa2CO3NaHSO4MgCl2
C.CaCl2NaNO3MgSO4BaCl2
D.HNO3KOHKClK2CO3
C.MgCl2溶液和氨水D.盐酸和NaAlO2溶液
为什么
2.NaNO3FeCl3AgNO3
分别有什么现象?谢谢回答!

