苯乙烯-丁二烯橡胶门尼黏度标准物质的复制

Replication of Mooney viscosity standard material of styrene butadiene rubber

苯乙烯-丁二烯橡胶门尼黏度国家标准物质在合成橡胶行业得到了广泛的应用,为满足合成橡胶行业对该标准物质的需求,国家合成橡胶质量监督检验中心组织第二次复制该门尼黏度标准物质。经过样品的候选、均匀性检验、稳定性检验、定值、不确定度评估等系列工作,第二次复制的标准物质为GBW(E)130398b。该门尼黏度标准物质定值结果在95%的置信概率时,定值结果呈正态分布、无异常值、等精度。复制的标准物质的标准值ML_(1+4)^(100℃)为47.5±0.5。

Mooney viscosity standard material of styrene butadiene rubber had a very important application in the synthetic rubber industry,and was second duplicated by the state administration of quality supervision and inspection in order to meet the demand of synthetic rubber industry for the standard material.Through sample candidate,uniformity and stability test,calibration and uncertainty evaluation and other series of work,the standard material GBW（E）130398bhad been duplicated.The fixed values were in normal distribution,no suspicious,and in equal precision at 95% confidence probability.The nominal value of standard material was 47.5±0.5at ML（1＋4）^（100℃）.