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提出用恒压过滤试验法评定助滤剂的助滤效果．给出了该方法所使用的仪器装置、被过滤悬浮液、助滤剂料液的配制、操作步骤和需测定的项目．给出的几个验证实验例的结果表明该方法简便可行，利于推广．
Proposed constant pressure filtration test to assess the filter aid filter aid effect. The equipment used in the method, the preparation of the filtered suspension, the filter aid liquid and the operation steps and the items to be measured are given. The results of several verified experimental examples show that this method is simple and feasible and is good for popularization.