Process Hazard Analysis (PHA).
Threshold Limit
Flash point
Fuel, an oxidizer, and an ignition source.
Minimum Ignition Energy.
Exposure assessment.
Inerting.
oxidation
Fatality Rate.
To know the probable source and causes of contamination on site.
OSHA.
The release of hazardous waste (HW).
Safety Program Effectiveness Metrics.
To assess the reliability of systems and processes.
Whether exposure to a chemical can increase the incidence of adverse health effects.
Exposure.
Chemical source and concentration.
Blowdown.
All of the above (Ingestion, Injection, Inhalation).
Risk assessment.
To effectively manage incidents and minimize harm.
Exposure assessment.
Reasonable worst case.
All of the above (Inventory of Chemicals, Labeling of Chemicals, Segregating Incompatibles).
True.
Safe workplace.
Flammable liquids
Analysis of dose and impact.
To minimize the probability of adverse consequences.
When mists or sprays pass through orifices.
Flash point.
Relief valve.
Both ambient heat and valve failures.
Low toxicity.
Risk characterisation.
True.
Chemical properties.
US Department of Labor.
Through dermal absorption, ingestion, and injection.
HAZOP.
Process Hazard Analysis
Reasonable worst case.
Mechanical explosion.
Boiling-Liquid Expanding-Vapor Explosion.
Deflagration.
Industrial Hygiene
Exothermic oxidation
1976.
Ingestion
Calculate probability of adverse effect on individual and population.
A reaction front that propagates at a speed less than the speed of sound.
Both 1 & 2 (Ambient heat and Valve)
HAZOP.
Risk characterisation.
Rapid exothermic oxidation of ignited fuel.
Chronic toxicity.
Confined Explosion.
An S-shaped or sigmoidal curve.
Ratio of the toxicity of a chemical to that of another structurally related chemical chosen as a reference.
To obtain the threshold.
Pressure relief valve.
1976.
Less than 2500 mg/kg.
Fall protection.
Occupational Safety and Health Administration (OSHA) Regulations.
Ratio of the toxicity of a chemical to that of another structurally related chemical.
Boiling-Liquid Expanding Vapor Explosion.
1911.
Identity of the hazardous chemical, instructions on how to use.
Doses by exposure rate.
By critical assumptions.
Carcinogenicity.
Rapid exothermic oxidation of ignited fuel.
To obtain the threshold for toxins.
All of the above: specific chemical or mixture, concentration, pressure, and temperature.
When the stressor has the potential to cause harm to humans and ecological systems.
Both ambient heat and valve failures.
Body-weight.
OSHA.
Process Hazard Analysis.
Inerting.
Effects due to short-term exposure.
Evaluation phase.
HAZOP
Hygiene Program
Methylisocyanate.
True.
Confined Explosion
When you don’t use the materials before the end of your work shift.
To develop safety standards and reduce hazards.
1000 ppm.
Threshold Limit Value.
Ionizing radiation.
All of the above (Inventory, Labeling, Segregating Incompatibles).
Fatality Rate.
2000 mg/kg.
OSHA.
The relief valve is primarily for liquid service.
The pressure difference between the relief set pressure and the relief reseating pressure.
US Department of Labor.
Effects due to long-term exposure.
Effective dose.
Hazard identification and dose-response evaluation.
All of the above
NAND
To prevent accidents and manage risks associated with chemical processes.
Definitive.
Effective dose.
Respiratory system.
A dose that will kill 50% of an exposed population.
ACGIH.
Evaluation phase.
Humans and surrounding chemicals.
International Commission on Radiological Protection (ICRP).
Confined Explosion.
To minimize the effect of a consequence.
Environmental risk assessments should not be available.
To obtain threshold.
Pressure relief valve.
Lead salts.
Exposure assessment.
Dr. Alice Hamilton.
To protect personnel from the dangers of overpressurizing equipment and to minimize chemical losses during pressure upsets.
OSHA
Evaluation phase.
Hazard identification and dose-response evaluation.
NAND.
PPE (Personal Protective Equipment).
Explosion
The relief valve is primarily for liquid service.
Before first use and then every 6 months.
OSHA
Definitive.
Explosion.
Calculate probability of adverse effect on individual and population.
By critical assumptions.
To minimize the effect of a consequence.
Environmental risk assessments should not be available.
Effects due to long-term exposure.
Operating pressure.
NAND.
Using pads or dosimeters to determine the amount of contaminant deposited on the skin.
Through ingestion, injection, and dermal absorption (all of the above).
Operating pressure.
Environmental risk assessments should not be available.
A reaction front that propagates at a speed less than the speed of sound.
An explosion resulting from the sudden failure of a vessel containing high-pressure nonreactive gas.
Ratio of the toxicity of a chemical to that of another structurally related chemical chosen as a reference.
A safe workplace.
Toxicological.
US.
Evaluation phase.
They are developed by consensus and are science-based.
All of the above (Ingestion, Injection, Inhalation).
Paracelsus.
Fuel, an oxidizer, and an ignition source (Fire triangle).
Body-weight.
Minimum Ignition Energy.
Mechanical explosion.
Explosion
Flash point
Provision of Personal Protective Equipment (PPE).
The release of hazardous waste.
Boiling-Liquid Expanding-Vapor Explosion.
All of the above (specific chemical or mixture, concentration, pressure, and temperature).
Fuel, an oxidizer, and an ignition source.
Exposure.
To reduce hazards.
When the stressor has the potential to cause harm to humans and ecological systems.
Effects due to short-term exposure.
Threshold Limit Value.
Leakage.
Explosion.
Local effects and poisoning.
HAZOP
All of the above
Threshold Limit Value
Ingestion is usually a significant way in which chemicals gain entry into the body.
Inflammation and corrosion.
Fuel, an oxidizer, and an ignition source.
Falls.
To know the probable source and causes of contamination on site.
To protect personnel from the dangers of overpressurizing equipment.
US Department of Labor.
Process Hazard Analysis
All of the above
Provision of PPE.
All of the above (Ingestion, Injection, Dermal absorption).
Body-weight basis.
Flash point.
1976.
Termination.
A dose that will kill 50% of an exposed population.
Process Hazard Analysis.
To protect personnel from dangers of chemical losses.
Whether exposure to a chemical can increase the incidence of adverse health effects.
Dr. Ramazzini.
Operating pressure.
Toxicological.
A reaction front propagating at a speed less than the speed of sound.
An explosion resulting from the sudden failure of a vessel containing high-pressure nonreactive gas.
Nervous system.
Leakage.
Toxicological.
Through ingestion, injection, and dermal absorption.
That they have been provided with PPE (Personal Protective Equipment).
Effective dose.
Toxicological.
Less than 2500 mg/kg.
Effects due to long-term exposure.
Both 1 & 2
Through ingestion, injection, and dermal absorption.
The release of hazardous waste.
Ratio of the toxicity of a chemical to that of another structurally related chemical chosen as a reference.
Effective dose.
US.
A safe workplace.
Ratio of the toxicity of a chemical to that of another structurally related chemical chosen as a reference.
Confined Explosion
1908.
All of the above (specific chemical or mixture, concentration, pressure and temperature).
Fuel, an oxidizer, and an ignition source.
Exposure assessment.
Chronic toxicity.
Methylisocyanate.
Nervous system.
To reduce hazards.
Chemical source and concentration.
Boiling-Liquid Expanding-Vapor Explosion.
Leakage.
Methylisocyanate.
Inerting
Hazard identification
Accident
Boiling-Liquid Expanding-Vapor Explosion
Prevent the release of hazardous waste.
Short-term and long-term exposure.
Exposure assessment.
Chronic toxicity.
Above Atmospheric pressure
Deflagration
Effective dose.
Evaluation phase.
That they have been provided with PPE.
By critical assumptions.
Exposure.
