Threshold Limit Value
The amount of hazardous chemical exposure to which a worker can be exposed
45
minimum angle for rigging
Point of Operation, Power Transmission Device, Operating Controls
Fundamental Machine Areas
Ergonomics
Matching the task to the worker
Irritants
chemicals that will irritate various tissues (chlorine and ammonia)
Sensitizers
"allergens"; cause an allergic type of reaction due to the sensitivity from prior exposure
Mutagens
ethylene oxide, benzene, and hydrazine
Teratogens
cause damage or death to a developing fetus (thalidomide, dioxins, lead, and calcium)
Point of Operation
the area on a machine where work is performed
Universal Precautions
all human blood and body fluids are treated as if known to be infectious; protecting workers from
exposure to blood and bodily fluids
Hazard
any real/potential condition that can cause injury; unsafe condition
Risk
probability that a substance/situation will produce harm under specified condition
Risk Analysis
process of identifying safety risk
Risk Assessment
, process of determining the risk presented by the identified hazards
Loss Control System
Identify hazardous conditions, assess the risks, and establish effective risk control measures
Aerosol
Suspension of liquid or solid particles dispersed in air
Mist
Suspension of liquid particles in air formed by condensation from vapor or by some mechanical process
Fume
solid particle aerosol formed by condensation from the vapor state
Smoke
Aerosol formed from combustion of organic material
Dust
Particulate material generated by a mechanical process
System Life Cycle
concept, system development, production/deployment, and sustainment/disposal
Inhaled, eye/skin contact (absorption), ingestion, and injected
4 major exposure paths for chemical compounds to enter the body
Check Valve
a device that prevents the back-flow of oxygen and acetylene
Elimination, Substitution, Engineering Controls, Warnings, Admin Controls, PPE
Most to Least Effective Control Methods
Authorized Employee
an employee who locks out machines in order to perform servicing/maintenance
Affected Employee
an employee whose job requires him to operate a machine on which servicing is being performed under
lockout
Attendant
an employee assigned to remain immediately outside the entrance to an enclosed space to render
assistance