研制了以RDX、铝粉为主要成分的非理想炸药爆热计量用标准物质,采用方差分析方法考核了标准物质的均匀性,根据先密后疏原则检验了标准物质的稳定性,分别用恒温法和绝热法测定爆热值.在分析炸药标准物质标准值的误差来源和影响因素的基础上,评估了标准物质标准值的合成标准不确定度和扩展不确定度,得出标准物质的标准爆热值为(7535.4±77.2)J/g,合成标准不确定度38.6J/g.结果表明,非理想炸药爆热用标准物质特性量值准确、可靠,均匀性和稳定性好,能够满足非理想炸药爆热量值传递的需要,达到校准和检定非理想炸药爆热测试仪器的要求.%A reference material,mainly composed of RDX and Al.was developed for verifying calorimeter used to determine the heat of detonation of non-ideal explosive. The homogeneity of characteristic value of the reference materials tested by means of the variance analysis method and its stability has been examined in regular order. The value of the heat of detonation was tested by an adiabatic calorimeter and a constant-temperature calorimeter respectively. The combined standard uncertainty and expanded uncertainty of standard value of reference material are evaluated,on the basis of analyzing the error source and factors affecting the standard value of the heat of detonation of reference material. The heat of detonation of reference material is (7535. 4±7. 2)J/g and the conbined standard uncertainty is 38. 6 J/g. The results indicate that the reference material has good homogeneity and stability,and accurate and reliable characteristic value,and can meet the requirements of transferring the certified value of heat of detonation and calibrating and verifying the calorimeter of heat of detonation of non-ideal explosive.
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