ISO 11999-3:2015规定了作为消防员个人防护装备（PPE）一部分的服装的最低设计和性能要求，主要但不仅仅是为了防止暴露在火焰和高热负荷下。 为了帮助根据用户风险评估进行选择，提供了多个级别的保护。 ISO 11999-3:2015描述了服装的类型、设计和性能、服装的具体要求、标志和制造商的说明。

ISO 11999-3:2015 specifies the minimum design and performance requirements for clothing as part of personal protective equipment (PPE) to be used by firefighters, primarily but not solely to protect against exposure to flame and high thermal loads. To assist with choice based on user risk assessment, a number of levels of protection are included. ISO 11999-3:2015 describes types, design, and performance of clothing, the specific requirements for clothing, marking, and manufacturer's instructions.