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Experiment on Determination Conditions of Pentacrythritol PH

Li Shiyao ;Dai Xueling  
The paper provides the experiment data,analyzes and demonstrates the index and determination method of national pentacrythritol standard GB 7815 - 87,and makes suggestions for improving and revising the mehtod. The improved method is more accurate for determination and production control and therefore guarantees a good profit.
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