煤样制备过程中的误差分析

Analysis of error in coal sample preparation

通过对缩分方法、缩分操作、缩分留样量、筛分等环节的误差分析,以及对胶质层指数煤样制备、粘结指数煤样制备、可磨性指数试样制备时应注意的事项进行探讨,要求制样人员严格执行国家标准,从根源上消除误差,从而达到煤样制备和分析的总精度要求。

Error in the process of division, operation of division, leaving samples quantity of division and screening are analyzed, and points for attention in coal sample preparation for plastometer indices, caking index and grindability index are discussed. It is required that the national standards are carried out strictly by sample worker, so as to reach total precision requirements of coal sample preparation and analysis and eliminate all the errors.