SWP: Chemical Hazards and Other Hazards
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51 Terms
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NFPA, National Fire Protection Association Hazard Codes
uses diamond shaped symbol, four quadrants and based on color codes and numerical ratings
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Blue
Color for health
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Red
Color for Flammability
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yellow
Color of reactivity
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white
Color of special warnings
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WHMIS
legislated system for all hazardous material
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Label, Safety Data Sheets and Training
What does WHMIS consists of?
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Training
Most important element of WHMIS
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Product Identifier, Pictogram, Signal Word, Hazard Statement, Precautionary Statement and Initial Supplier Identifier
Parts of a Supplier’s Label
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Product name, Safe Handling Precautions and Reference to SDS
Parts of Workplace Label
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Acute
one time exposure, short term
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Chronic
Long term exposure, repeated
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Insidious Chemical
accumulates and result to harmful effects
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Carcinogen
chemical causing cancer in living cells
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Mutagen
mutation of cells
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Inhalation
via respiratory
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Ingestion
via digestion system
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Absorption
through skin and eyes
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Injection or Parenteral
mishandling of needles
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heat, oxygen and fuel
3 element of fire
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Heat
source of ignition
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Fuel
can burn or explode
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Oxygen
the “food” and supports reaction
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Flammable
room temperature less than 30 degrees
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Combustible
must be heated greater then 37 degrees
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Class A
Ash or combustible
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Class B
found in bottles or barrel, Liquid
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Class C
Electrical Circuits
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Class D
flammable metals
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Class K
Kitchen Fire
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Water and A-B-C Dry Chemicals
Prevention of Class A
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Carbon Dioxide and A-B-C Dry Chemicals
Prevention for Class B
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Carbon Dioxide (halogens) and A-B-C Dry Chemicals
Prevention for Class C
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Class D Dry Chemicals. yellow
Prevention for Class D
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Class K dry Chemicals
Prevention for Class K
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ph farther from 7
What ph is more corrosive
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Acid to water, to avoid splashes
What ratio do we follow when diluting bleach and why
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Compressed Gas
a physical hazard example is oxygen tank
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Cryogenic
with temperature below -73
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Liquid nitrogen
quickly freezing sample
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Dry ice
when frozen sample needs to be transported
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Electrical Hazard
when alternate current is more dangerous than direct current
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Radiation
energy emitted from a source
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External
burn to the tissue
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Internal
damage to bone marrow and reproductive organs
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Dosimetry
measures the absorbed dose accumulated from direct and indirect exposure
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Retina
Hazard with laser of the scanner
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Cataract
Hazard with microwaves
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BSC
What should not be on with UV lamp
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Noise
any unwanted sound
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Decibels
measure noise
Note 
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