阳江SGDV-120A01A002000

entics安沃驰822331401
entics安沃驰822331402
entics安沃驰822331403
entics安沃驰822331404
entics安沃驰822331405
entics安沃驰822331406
entics安沃驰822331407
entics安沃驰822332201
entics安沃驰822332202
entics安沃驰822332203
entics安沃驰822332204
entics安沃驰822332205
entics安沃驰822332206
entics安沃驰822332207
entics安沃驰822332208
entics安沃驰822332209
entics安沃驰822332210
entics安沃驰822332211
entics安沃驰822332213
entics安沃驰822332214
entics安沃驰822332215
entics安沃驰822332217
entics安沃驰822332219
entics安沃驰822332224
entics安沃驰822332225
entics安沃驰822332232
entics安沃驰822332233
entics安沃驰822332240
entics安沃驰822332242
entics安沃驰822332247
entics安沃驰822332248
entics安沃驰822332254
entics安沃驰822332256
entics安沃驰822332260
entics安沃驰822332262
entics安沃驰822332269
entics安沃驰822332401
entics安沃驰822332402
entics安沃驰822332403
entics安沃驰822332404
entics安沃驰822332405
entics安沃驰822332406
entics安沃驰822332407
entics安沃驰822332408一旦受潮就麻烦。简单实用的是纯水标定。用微量注射器准确移取水量，一般取1到3微升水量进行标定，连续重复几次，取平均值，求出卡尔-费休试剂的滴定度。但是有些试验室的检验人员对卡尔-费休试剂滴定度标定的含义并不完全清楚，或者是不负责任的惰性，竟然会发生一瓶试剂从开启使用进行一次滴定度标定以后一直到试剂用完，几个月时间内的样品测试始终用一个滴定度的标定值，显然其中是有较大误差的。卡尔-费休试剂的滴定度随着使用时间的延长是逐步变化的，相对于天的滴定度误差也随之变大。