Zatloukal Z
Univerzita Karlova v Praze, Farmaceutická fakulta v Hradci Králové.
Ceska Slov Farm. 2005 Jul;54(4):184-6.
Penetrometry through a cone is a standardized method of comparing the consistence of semisolid systems. For the time being, this arrangement is only of marginal importance for the evaluation of flow ability of powders. For this purpose it is recommended to use penetrometry by means of a ball, which is significantly connected with the volume flow rate. The present original paper attempts to find the regression dependence suitable for the estimation of the flow rate of size fractions by means of powdered auxiliary substances. This solution replaces the traditional penetrometric degrees (unit of length) with volume or weight of freely layered powder pushed out by the penetrating ball. The optimal method is the transformation of penetrometric degrees to the weight of the powder, which makes it possible to estimate the weight rate of pouring with the use of an exponential equation elucidating 97.4% of total dispersion. Penetrometry with the use of a ball could be included into the group of tests for the evaluation of flow ability and structure of powdered auxiliary substances.
通过圆锥体进行针入度测定是比较半固体体系稠度的一种标准化方法。目前，这种方法对于评估粉末的流动能力仅具有边际重要性。为此，建议使用通过球体进行的针入度测定，这与体积流率密切相关。本原创论文试图找到适合通过粉状辅助物质估算粒度级分流速的回归相关性。该解决方案用穿透球推出的自由分层粉末的体积或重量取代了传统的针入度（长度单位）。最佳方法是将针入度转换为粉末重量，这使得可以使用一个能解释97.4%总离散度的指数方程来估算倾倒重量率。使用球体的针入度测定可纳入评估粉状辅助物质流动能力和结构的测试组中。
