UL Standards free download UL 2129 2021 pdf download – Halocarbon Clean Agent Fire Extinguishers UL 2129 2021 pdf download - Halocarbon Clean Agent Fire Extinguishers. 6.3 A disposable extinguisher shall not be rechargeable. 6.4 An extinguisher having a volume in excess of 2.3 L (140 in 3 ) shall be capable... 02-09 Download Now