nwacc business & industry workforce development institute h - 1 safe chemical handling hazardous...
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NWACC Business & Industry Workforce Development Institute
H - 1
SAFE CHEMICAL HANDLING
HAZARDOUSMATERIALS
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NWACC Business & Industry Workforce Development Institute
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WELCOME
OSHA 29 CFR 1910
SAFE CHEMICAL HANDLING
OSHA TRAINING
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BASIS FOR THIS COURSE
THE BOTTOM LINE
TRAINING YOU TO BE KNOWLEDGEABLEOF HOW TO LOWER YOUR LIFETIME
WORKPLACE EXPOSURE AND DOSAGETO THE CHEMICALS AND TOXIC MATERIALS
YOU ARE POTENTIALLY EXPOSED TO INYOUR DAILY WORKING LIFE!
NWACC Business & Industry Workforce Development Institute
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29CFR - SAFETY AND HEALTH STANDARDS
1910 - GENERAL INDUSTRY
106 - FLAMMABLE AND COMBUSTIBLE LIQUIDS
REGULATORY STANDARDFLAMMABLE AND COMBUSTIBLE LIQUIDS
29CFR - 1910 - 106
FLAMMABLELIQUID
ETHYLMETHYLNASTY
FLAMMABLELIQUID
ETHYLMETHYLNASTY
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29CFR - SAFETY AND HEALTH STANDARDS
1910 - GENERAL INDUSTRY
1200 - HAZCOM STANDARD
REGULATORY STANDARDHAZARD COMMUNICATION
29CFR - 1910 - 1200
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PERSONAL PROTECTIVE EQUIPMENT
PERSONAL PROTECTIVE EQUIPMENT REQUIREMENTS:
Follow Local Job Procedures.
Review the Relative Material Safety Data Sheet.
If You Have Questions Consult Your Supervisor.
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GENERAL CONCEPTS OF TOXICOLOGY
HOW WELL THE BODY ACCEPTS A SUBSTANCE DEPENDS ON:
THE TYPE OF SUBSTANCE
THE AMOUNT (DOSE) ABSORBED
THE PERIOD OF TIME OVER WHICH IT IS ABSORBED
THE SUSCEPTIBILITY/SENSITIVITY OF THE PERSON EXPOSED
EVERYTHING IS TOXIC; IT ALL DEPENDS ON THE DOSE
NWACC Business & Industry Workforce Development Institute
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GENERAL CONCEPTS OF TOXICOLOGY
DEGREE OF HARM TO BODY DEPENDENT ON:
CONDITIONS OF USE
PHYSICAL PROPERTIES OF THE CHEMICAL
ROUTES OF EXPOSURE
DURATION OF THE EXPOSURE
CONCENTRATION OF THE CONTAMINANT IN AIR
INDIVIDUAL SUSCEPTIBILITY OF THE EXPOSED PERSON
TOXICITY OF THE CHEMICAL
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STATES OF MATTER
CHANGE OF STATE CAN OCCUR DUE TO:
HEAT COLD ATMOSPHERIC PRESSURE INTERACTION WITH OTHER CHEMICALS
SOLID LIQUID GAS
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AIRBORNE CONTAMINANTS:
FUME DUST
MIST
VAPOR
GAS
SMOKE
STATES OF MATTER
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OPEN PLATING DEGREASING PARTS PAINTING
CLOSED REFINING DISTILLING GAS PRODUCTION
TYPES OF PROCESSES
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HANDLING GASES
HAZARDS:
PRESSURE EXPLOSION
FIRE
TOXICITY
CORROSIVITY
REACTIVITY
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GASES - PRE-OPERATION SAFETY
1. Inspect cylinder for damage before use.
2. Ensure “in use” label is present.
3. Ensure all labels and warnings are readable.
4. Place upright on stable dry surface.
5. Ensure cylinder is restrained above mid-point.
6. Keep heat, flame, and electricity away from cylinder.
7. Operate in accordance with local safety procedures.
HANDLING GASES
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GASES - POST-OPERATION SAFETY
1. Ensure “empty” or like label present.
2. Remove from operation following procedures.
3. Ensure valve closed completely and cap cylinder.
4. Never roll, transport cylinders using handtruck.
5. Never underestimate hazards associated with compressed gases.
HANDLING GASES
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GASES - STORAGE REQUIREMENTS
Store only in designated areas.
Store and use on a first-in, first-out basis.
Never store without proper labeling.
Identify all empty cylinders.
Store like gases with like gases.
Separate empty cylinders from full ones.
Store within proper temperature ranges.
STORING GASES
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GASES - STORAGE REQUIREMENTS
Store outside when possible.
Protect from weather and direct sunlight.
Ensure storage areas meets guidelines.
Never store where temperature can rise to 130f.
Place caps on stored cylinders.
Store valve end up in a secure area.
Inspect and properly tag defective cylinders.
STORING GASES
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THE BOTTOM LINE
Follow all safety guidelines.
Review current storage requirements.
Know - compressed gas association rules.
Know - NFPA rules.
Know - OSHA rules.
Know - the local policy.
Never underestimate compressed gases!
STORING GASES
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TYPES AND DEFINITIONS:
Flashpoint - minimum ignition temp. for ignitable vapor Flammable - flashpoint below 100 deg. (F.) Combustible - flashpoint at or above 100 deg. (F.) Pyrophoric - can ignite spontaneously Flammable range - vapor/air ratio that will burn Volatility - tendency to change to vapor state
HANDLING IGNITABLE LIQUIDS
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CHECK FOR COMPATIBILITY!
OXIDIZERSOLVENT
HANDLING IGNITABLE LIQUIDS
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LEVELS OF STORAGE:
HAZARDOUS MATERIALS STORAGE FACILITY
IN-PLANT STORAGE CABINETS
TOTES, DRUMS/BARRELS
PORTABLE CONTAINERS
STORING FLAMMABLE AND COMBUSTIBLE LIQUIDS:
FLAMMABLELIQUIDS
STORING IGNITABLE LIQUIDS
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HAZARDOUS MATERIALS STORAGE FACILITY
Dedicated fire suppression system Make-up air Exhaust ventilation Explosion-proof lighting and heating Floor drains 2-Hour fire rating on structure Proper signage and safety procedures
STORING IGNITABLE LIQUIDS
FLAMMABLELIQUIDS
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TOTES, DRUMS AND BARRELS
Should be moved to storage ASAP Make best use of just-in-time system Bonding wires must be used Local fire codes must be considered Bonding - container to container Grounding - container to structural ground No ignition sources within 25 feet
STORING IGNITABLE LIQUIDS
FLAMMABLELIQUIDS
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PORTABLE CONTAINERS
Bond from drum to container during transfer Store in safety cabinets when not in use Check for leak-tightness Check for serviceable vent mechanism Do not remove flame arrester screens Do not overfill (high temps will cause overflow) Follow warnings and safety procedures
STORING IGNITABLE LIQUIDS
FLAMMABLELIQUIDS
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GENERAL SAFETY PRECAUTIONS
Remove electrical equipment Use spark resistant tools Use safe techniques to move containers Use proper dispensing faucets Follow warnings and use labels Properly dispose of empty containers Follow proper inspection procedures
STORING IGNITABLE LIQUIDS
FLAMMABLELIQUIDS
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HANDLING CORROSIVE LIQUIDS
AFFECT OTHER MATERIALS BY CONTACT:
Acids and bases affect material by contact Acids and bases affect each other Oxidizers increase hazard during fires
ACIDS BASES OXIDIZERS
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A material such as a chlorate, permanganate, or inorganic peroxide that will give off oxygen readily to stimulate the combustion of organic material.
HANDLING CORROSIVE LIQUIDS
OXIDIZER
DOT DEFINITION
OXIDIZER
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Provide oxygen for combustion React violently with flammables and combustibles Must be kept separate from all other classes of materials
OXIDIZERS
HANDLING CORROSIVE LIQUIDS
OXIDIZER
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HANDLING CORROSIVE LIQUIDS
A liquid or solid that causes visible Destruction or irreversible damage To skin tissue at the point of contact, Or that has a severe corrosion rate on steel.
CORROSIVEMATERIALS
DOT DEFINITION
CORROSIVE
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A chemical that causes visible destruction of, or irreversible alterations in living tissue by chemical action at the site of contact.
HANDLING CORROSIVE LIQUIDS
ACID
OSHA DEFINITION
CORROSIVE
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ACIDS AND BASES
- pH. THE pH OF A LIQUID IS THE NUMERICAL MEASUREOF ITS RELATIVE ACIDITY OR ALKALINITY. THE RANGEIS FROM 0 - 14 WITH A NEUTRAL LEVEL EXPRESSED ASA pH OF 7.0.
ABOVE 7.0 THE LIQUID IS MORE ALKALINE OR BASIC.
BELOW 7.0 THE LIQUID IS MORE ACIDIC.
HANDLING CORROSIVE LIQUIDS
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HANDLING CORROSIVE LIQUIDS
COMMON ACIDS (pH 0-6)
HYDROCHLORIC ACID HYDROFLUORIC ACID NITRIC ACID PHOSPHORIC ACID CHROMIC ACID
COMMON BASES (pH 8-14)
SODIUM HYDROXIDE (LYE) SODIUM HYPOCHLORITE (BLEACH) AQUEOUS AMMONIA POTASSIUM HYDROXIDE (POTASH) AMMONIUM HYDROXIDE
ACIDS AND BASESACID BASE
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HANDLING CORROSIVE LIQUIDS
CHECK FOR COMPATIBILITY!
HIGH pHBASEACIDLOW pH
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STORING CORROSIVE LIQUIDS
Inspect before placing in storage Separate acids from bases Separate acids & bases from other materials Use drip pans under containers Use personal protective equipment (PPE) Use correct dilutions sequences Use approved storage containers
STORAGE
CORROSIVEMATERIALS
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HANDLING HIGHLY TOXIC LIQUIDS
Can react with themselves or other materials Water and air reactives are greatest concern Know the adverse health effects Restrict access to these materials Carefully review storage requirements Ensure sufficient training levels achieved Use adequate personal protective equipment Use approved storage containers
HANDLING
HIGHLY TOXICMATERIALS
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HANDLING HIGHLY TOXIC LIQUIDS
CHECK FOR COMPATIBILITY!
AMMONIABLEACH
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STORING HIGHLY TOXIC LIQUIDS
Inspect before placing in storage Separate from incompatibles Use personal protective equipment (PPE) Use approved storage containers
STORAGE
HIGHLY TOXICMATERIALS
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HANDLING REACTIVE LIQUIDS
HANDLING Know the adverse health effects Know the reactive nature of the material Separate from incompatibles Restrict access to these materials Carefully review storage requirements Ensure sufficient training levels achieved Use adequate personal protective equipment Use approved storage containers
REACTIVEMATERIALS
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CHECK FOR COMPATIBILITY!
WATERMAGNESIUM
HANDLING REACTIVE LIQUIDS
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Inspect before placing in storage Separate from incompatibles Use personal protective equipment (PPE) Use approved storage containers
STORAGE
STORING REACTIVE LIQUIDS
REACTIVEMATERIALS
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HANDLING SOLID MATERIALS
DRUMS/BARRELS TOTES BAGS
HANDLING - PORTABLE CONTAINERS
HIGHLY TOXICMATERIALS
TANKS HOPPERS SILOS
HANDLING - BULK STORAGE
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HANDLING SOLID MATERIALS
RESPIRATORYHAZARD
Manual method Mechanical method Follow safety procedures Avoid suspending particles Use dust control techniques
TRANSFER
Dust primary hazard
HAZARDS
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HANDLING SOLID MATERIALS
RESPIRATORYHAZARD
= MICRON
* = SHAPE IS A FACTOR
PARTICLE SIZE
0.251.005.00
590.0 MINUTES
54.0 MINUTES 2.5 MINUTES
TIME TO FALL 1 FOOT*
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Inspect container before placing in storage Separate from incompatibles Use mechanical devices to lift heavy bags Use personal protective equipment (PPE) Protect from contamination in storage Use exhaust ventilation Empty bags have residual product inside Use approved storage containers
STORAGE
STORING SOLID MATERIALS
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Inspect container for product residuals Do not use empty containers as trash cans Check with environmental management Triple rinse reusable containers Remember - residual product is hazardous too Follow local procedures Check with supervisor if policy is unclear
HANDLING AND DISPOSAL
EMPTY CONTAINER MANAGEMENT