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The permit for entry into IDLH PRCS must be approved by whom before entry?
Wiki User
∙ 13y ago
Ground Safety, BE and Fire Protection must approve permit prior to entry.
Wiki User
∙ 13y ago
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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.
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 is idlh for sulfur dioxide?
100 ppm
What does IDLH stand for?
Immediately Dangerous to Life and Health.
What is the protective action downwind distance corresponding to the idlh level of concern?
7.9
IDLH environment is an environment considered to have less than what oxygen concentration?
19.5%.
What is the LEL of ethanol?
The lel of alcohol is 3.3% - 10% lel - 3300 ppm idlh 15000 ppm
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
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.
