Cite
HARVARD Citation
Institution,, B. (2023) BS ISO 11999-4. PPE for firefighters. Test methods and requirements for PPE used by firefighters who are at risk of exposure to high levels of heat and/or flame while fighting fires occurring in structures.. [Online]. London : British Standards Institution. Available from: http://access.bl.uk/ark:/81055/vdc_100190116716.0x000001