GBT 9853-2008 化学试剂 无水硫酸钠

Chemicalreagent-sodiumsulfateanhydrous(ISO6353-2:1983,Reagents{orchemicalanalysis-Part2:Speci{ications-Firstseries,NEe)(cil,u/%/-i.,/o.oo2\\0.oos0.0005\\o.oors\\o.ooz]-J!!X100mgcl;mgcl..........-.-0.02mgN