利用控制图准确测定丁二烯橡胶的凝胶含量

对性能稳定质量优良的国产丁二烯橡胶(BR)9000样品,进行凝胶含量测定,根据测定结果各统计量绘制凝胶含量测定的X-R(或S)控制图。根据X图、R图和S图,可以综合判断出实验室丁二烯橡胶样品凝含量的测定结果处于良好的受控状态,实验室具有较高的系统和随机控制的能力,测定结果准确可靠。在测定丁二烯橡胶凝胶含量时,系统误差控制在±0.02%范围内,随机误差应小于0.05%,标准偏差应小于0.05。

Determination of Gel Content in Butadiene Rubber by Control Chart

The gel contents of domestic butadiene rubber (BR) 9000 samples with good performance and good quality were determined, theX-R (orS) control chart of gel content determination was drawn based on determined results. The X,R andS control charts show that the determined results of gel content in butadiene rubber are in a well controlled state. The laboratory has the ability of high system and random control, and the determination result is accurate and reliable. During determination of gel content in butadiene rubber, the system error can be controlled in the range of ± 0.02%, the random error is less than 0.05%, the standard deviation is less than 0.05.