scope:

This part of ISO 11999 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.

The scope of this part of ISO 11999 does not include clothing for use in high-risk fire exposures where for example, reflective protective clothing according to ISO 15538 could be more appropriate, or for use in long-term firefighting operations in high ambient temperature, for example bush, wildland, or forest firefighting where clothing according to ISO 16073 or ISO 15384 could be more appropriate.

Similarly, this part of ISO 11999 does not include clothing to protect against chemical and biological hazards, other than against short-term and accidental exposure while engaged in firefighting and associated activities when fighting fires occurring in structures.

This part of ISO 11999 describes types, design, and performance of clothing, the specific requirements for clothing, marking, and manufacturer's instructions.