The international standards for bulletproof vests and helmets vary depending on the country and region. However, some widely recognized international standards include:
1. NIJ Standards (National Institute of Justice, USA): The NIJ standards are widely accepted as a benchmark for bulletproof vests and helmets. They define the performance requirements and testing methods for different levels of protection against various threats, including handgun and rifle bullets.
2. EN Standards (European Standards): The EN standards are used in European countries and provide guidelines for the performance and testing of bulletproof vests and helmets. They include standards such as EN 1522 for ballistic protection and EN 397 for industrial safety helmets.
3. VPAM Standards (German Beschussamt): The VPAM standards, established by the German Beschussamt, are widely recognized in Europe. They define the performance requirements for bulletproof products, including vests and helmets, against various ballistic threats and stabbing attacks.
4. ISO Standards (International Organization for Standardization): The ISO has also published standards related to bulletproof vests and helmets, such as ISO 16935 for testing the impact resistance of helmets.