the part of iso 16936 specifies requirements and mechanical test methods for security glazing designed to resist actions of manual attack by delaying access of objects and/or persons to a protected space for a short period of time. this part of iso 16936 classifies security-glazing products into categories of resistance against repetitive impacts of a hammer and an axe. In this part of iso 16936, the categories of resistance have not been assigned to special applications. Glazing classification should be specified on an individual basis for every application. This part of iso 16936 deals with mechanical resistance to manual attack only. Other properties can also be important