KeithDPatchNov 20
Hey @nolanews -
1) Sorry, but hydrofluoric acid is the same as hydrogen fluoride #HF ↙️
2) It does not take HEAVY CONCENTRATIONS of HF to burn the skin and cause organ damage. 3ppm HF is the Immediately Dangerous to Life or Health concentration #IDLH from @niosh !↘️
KeithDPatchOct 20

#Safety101
HD Hyundai HHI now has ammonia-fueled 2.2MWe & 5.4MWe dual-fuel DI ICE engines.↙️

Hyundai claims a Selective Catalytic Reduction #SCR system will eliminate toxic ammonia & nitrogen oxide emissions.↘️

NOTE: SCR systems are ineffective on cold starts!
-They need high temperatures (around 200C - 250C) to work, leading to high temporary ammonia & NOx emissions.
-The Immediately Dangerous to Life or Health #IDLH concentration for ammonia is 300 parts per million (ppm)! #woops

Show threadfaraiweFeb 28, 2024

Remarks.

#IDLH for Phosgene is ~02ppm.

See
https://www.cdc.gov/niosh/idlh/75445.html

The RECOMMENDED level of Phosgene is ZERO ppm

The naturally occurring levels of Phosgene are ZERO ppm.

#CBRNE #NerveGas #Sweden

CDC - Immediately Dangerous to Life or Health Concentrations (IDLH): Phosgene - NIOSH Publications and Products