本文件规定了用自动Sapozhnikov渗透塑性计测定塑性指数的方法。这些指数是塑料层的最大厚度Y（单位为mm）和最终收缩X（单位为mm）。 本文件适用于测定灰分低于15？%，以干基计，如ISO？11722和ISO？1171.

This document specifies a method for the determination of plastometric indices with an automated Sapozhnikov penetration plastometer. These indices are the maximum thickness of the plastic layer, Y, in mm, and the final contraction, X, in mm. This document is applicable to hard coals with a determined ash level of less than 15？% as dry basis as described in ISO？11722 and ISO？1171.