Phosgene

CAS RN: 75-44-5

Protective Equipment / Clothing

Rescuers should be trained and appropriately attired before entering the Hot Zone. If the proper equipment is not available, or if rescuers have not been trained in its use, assistance should be obtained from a local or regional HAZMAT team or other properly equipped response organization. ...
Respiratory Protection: Positive-pressure-demand, self-contained breathing apparatus (SCBA) is recommended in /emergency/ response situations that involve exposure to potentially unsafe levels of phosgene. Skin Protection: Chemical-protective clothing is recommended because phosgene gas can cause skin irritation and burns. NIOSH recommends protective suites made from Responder (TM) (Kappler Co.), Tychem 10000 (TM) (DuPont Co.), or Teflon (TM) (DuPont Co.).
Where liquid phosgene is encountered, protective clothing should be supplied which is impervious to phosgene. Where gas is encountered above safe limits, full-face gas masks with phosgene canisters or supplied air respirators should be used. Because of the potentially serious consequences of acute overexposure and the poor warning properties of the gas to the human senses, automatic continuous monitors with alarm systems are strongly recommended. Wear appropriate clothing to prevent any reasonable probability of skin contact. Wear eye protection to prevent any possibility of eye contact. ... Provide emergency showers and eyewash.
Wear special protective clothing and positive pressure self-contained breathing apparatus.
Safety valves and vents for phosgene equipment shall discharge through absorbers or neutralizers (decomposition system).
Wear appropriate personal protective clothing to prevent skin contact. /Liquid/
Wear appropriate eye protection to prevent eye contact. /Liquid/
Facilities for quickly drenching the body should be provided within the immediate work area for emergency use where there is a possibility of exposure. [Note: It is intended that these facilities provide a sufficient quantity or flow of water to quickly remove the substance from any body areas likely to be exposed. The actual determination of what constitutes an adequate quick drench facility depends on the specific circumstances. In certain instances, a deluge shower should be readily available, whereas in others, the availability of water from a sink or hose could be considered adequate.] /Liquid/
Respirator Recommendations: Up to 1 ppm: (Assigned Protection Factor = 10) Any supplied-air respirator. Substance reported to cause eye irritation or damage; may require eye protection.
Respirator Recommendations: Up to 2 ppm: (Assigned Protection Factor = 50) Any self-contained breathing apparatus with a full facepiece./(Assigned Protection Factor = 50) Any supplied-air respirator with a full facepiece.
Respirator Recommendations: Emergency or planned entry into unknown concentrations or IDLH conditions: (Assigned Protection Factor = 10,000) Any self-contained breathing apparatus that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode./(Assigned Protection Factor = 10,000) Any supplied-air respirator that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode in combination with an auxiliary self-contained positive-pressure breathing apparatus.
Respirator Recommendations: Escape: (Assigned Protection Factor = 50) Any air-purifying, full-facepiece respirator (gas mask) with a chin-style, front- or back-mounted canister providing protection against the compound of concern/Any appropriate escape-type, self-contained breathing apparatus.
Find more information on this substance at: PubChem, PubMed