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What else can I help you with?
Can air purifying respirators be used in idlh situations?
No, they cannot. In IDLH situations supplied air respirators or SCBA's must be used.
What does IDLH stand for?
Immediately Dangerous to Life and Health.
What is the LEL of ethanol?
The Lower Explosive Limit (LEL) of ethanol is approximately 3.3% volume concentration in air. This means that if the concentration of ethanol in the air is below 3.3%, it is too low to ignite and sustain combustion.
What is the protective action downwind distance corresponding to the idlh level of concern?
7.9
What is the lethal level of co2 in blood?
OSHA's maximum safe level is 3% (30,000 ppm); lethal concentration (death in 30 minutes) is 10% (100,000 ppm)http://www.cdc.gov/niosh/idlh/124389.html
The permit for entry into IDLH PRCS must be approved by whom before entry?
Ground Safety, BE and Fire Protection must approve permit prior to entry.
What is idlh for sulfur dioxide?
The IDLH (Immediately Dangerous to Life or Health) for sulfur dioxide is 100 ppm (parts per million). This means that exposure to levels higher than 100 ppm could result in severe health effects or even death within a short period of time. It is important to take precautions and use appropriate safety measures when working with sulfur dioxide to avoid reaching levels that are immediately dangerous to life or health.
When will entry supervisors authorize entry into an IDLH PRCS?
Entry supervisors will authorize entry into an immediately dangerous to life or health Permit Required Confined Spaces when the hazard has been mitigated or controlled and adequate protections and emergency extraction procedures are in place.
Why ammonia bottle is cooled before opening it?
Because NH3 boils at −33.34 °C, the liquid must be stored under high pressure or at low temperature. Its heat of vapourization is, however, sufficiently high so that NH3 can be readily handled in ordinary beakers, in a fume hood. It is cooled before opening its seal to minimise the pressure. When mixed with oxygen, it burns with a pale yellowish-green flame.Anhydrous ammonia is classified as toxic (T) and dangerous for the environment (N). The gas is flammable (autoignition temperature: 651 °C) and can form explosive mixtures with air (16-25%). The permissible exposure limit (PEL) in the United States is 50 ppm (35 mg/m3), while the IDLH concentration is estimated at 300 ppm. Ammonia reacts violently with the halogens. Nitrogen triiodide, a primary high explosive, is formed when ammonia comes in contact with iodine. Ammonia causes the explosive polymerisation of ethylene oxide. It also forms explosive fulminating compounds with compounds of gold, silver, mercury, germanium or tellurium, and with stibine. Violent reactions have also been reported with acetaldehyde, hypochlorite solutions, potassium ferricyanide and peroxides.
