Transcript No Slide Title

Module 2 - Workplace
Hazardous Materials Information
System (WHMIS)
Wayne Wood
Environmental Safety Office
Chancellor Day Hall, Room 615
398-4563
[email protected]
http://www.mcgill.ca/eso/
“No employer may allow the use, handling
or storage of a Controlled Product
in a workplace unless the product carries a
label and a material safety data sheet
which meet the requirements of this Act
and the regulations and unless the worker
has received the training and information
required to carry out the work entrusted to
him safely”
- Article 62.1, An Act respecting occupational health and
safety R.S.Q., S-2.1
What are Controlled Products?
Class A:
Compressed Gas
Class B:
Flammable and
Combustible
Material
Controlled Products
Class C:
Oxidizing Material
Class D Controlled Products
Division 1:
Materials Causing Immediate
and Serious Toxic Effects
Division 2:
Materials Causing Other Toxic
Effects
Division 3:
Biohazardous Infectious
Materials
Controlled Products
Class E:
Corrosive Material
Class F:
Dangerously Reactive Material
Not Classified as Controlled
Products:
explosives
radioactive
materials
Not Classified as Controlled
Products:
domestic
goods
cosmetics
Not Classified as Controlled
Products:
Food &
food
additives
Drugs &
diagnostic
chemicals
Not Classified as Controlled
Products:
pesticides
hazardous waste
• Labels
WHMIS
Main Elements
– supplier
– workplace
– laboratory
DIMETHYL
MEGADEATH
• Material safety data sheets
– supplier
– workplace
• Training
– core
– job specific
Supplier’s Label
TOLUENE
PRODUCT
SULFONIC
IDENTIFIER
ACID
RISK PHRASES:
Highly irritating to skin, eyes, and nose
HEALTH HAZARD DATA:
Strong Acid: Treat as sulphuric acid
EFFECTS OF OVEREXPOSURE: ACUTE
PRECAUTIONARY MEASURES:
Supplier
identifier
ABC Chemicals
123 Chemical Drive
Chemical City
1-800-CHE-MICAL
PERSONAL PROTECTIVE EQUIPMENT
EYE: Face shield and goggles
GLOVES: Rubber
OTHER CLOTHING AND EQUIPMENT:
Rubber apron, rubber boots
FIRST AID:
EYES: Flush with water for 15 minutes. Consult
with physician
SKIN: Flush with water as per sulphuric acid
INGESTION: Treat as per sulphuric acid. Consult
with physician
Refer to Material Safety
Data Sheet
FRANCAIS AU VERSO
Workplace Label
PRODUCT
MethylIDENTIFIER
Alcohol
Precautions:
Use in well ventilated area
Avoid contact with skin
and eyes
Keep away from spark
and flame
Refer to Material Safety
Data Sheet
FRANCAIS AU VERSO
Workplace Labels Required:
 On controlled products
produced and used in the
workplace,
 if the label becomes illegible.
 received from a supplier and
transferred to another
container*
*not required if transferred material is
used in its entirety prior to the end of the
work shift
Workplace Labels
in Research Labs
• Product identifier
(name)
• MSDS must be
available
• Not to be transported
out of lab
Agent
Green
Material Safety Data Sheets
• Supplier must provide
• Accessible to ALL
workers in the
workplace
• Must be kept up to
date
• Must be made
available to doctor in
the event of exposure
What’s in an MSDS?
1. Product Information
Item Name: VARSOL-1 SOLVENT
Company's Name: EXXON CO, 800
BELL ST., HOUSTON, TX, US,
77252-2180
Emerg Ph #: 713-656-3424
/800-424-9300(CHEMTREC)
Part Number: 131030-00627
What’s in an MSDS?
2. MSDS Preparation
Date MSDS Prepared: 12APR95
Safety Data Review Date: 13JUN96
MSDS Preparer's Name:
MARKETING TECHNICAL SER
Preparer's Company: EXXON
COMPANY, USA (713-656-5949)
What’s in an MSDS?
3. Ingredients
Ingredient: STODDARD SOLVENT
Ingredient Sequence Number: 01
Percent: 100
CAS Number: 8052-41-3
OSHA PEL: 500 PPM
ACGIH TLV: 100 PPM
Definition: Threshold Limit Value
• TLV (TWA) is an 8-hour timeweighted average believed to be the
average concentration to which most
workers can be exposed during an 8hour workday, day after day, without
harmful effects.
• TLV (STEL) is a 15 minute “short
term exposure limit”
• Ceiling (C) is a maximum
concentration never to be exceeded
Stoddard Solvent?
Ingredient: C*7-C*10 saturated
hydrocarbon, Percent: 83.0
Ingredient: 1,2,4-trimethylbenzene. Percent:
4.0
Ingredient: C8+ aromatics, Percent: 17.0
What’s in an MSDS?
4. Physical Properties
Appearance and Odor: clear waterwhite liquid, mineral spirits odor.
Boiling Point: 315F,157C
Melting Point: <0F,<-18C
Vapor Pressure (MM Hg/70 F):
1.6MM @20C
What’s in an MSDS?
4. Physical Properties (cont’d)
Vapor Density (Air=1): 3.5
Specific Gravity: 0.80
Evaporation Rate And Ref: 0.1 (Nbutyl acetate=1)
Solubility In Water: negligible
Percent Volatiles By Volume: 100
pH: NEUTRAL
What’s in an MSDS?
5. Fire and Explosion Data
Flash Point: 104F,40C
Flash Point Method: TCC
Lower Explosive Limit: 2.1%
Upper Explosive Limit: 13.3%
Definition: Flash Point
• The flash point is the lowest
temperature at which a liquid
produces enough vapour to
ignite in the presence of a
source of ignition.
• The lower the flash point, the
greater the risk of fire.
Flash Points oC
acetone
ether (diethyl)
natural gas
ethyl alcohol
methyl alcohol
gasoline
varsol
-18
-45
- 88
13
11
-43
40
What’s in an MSDS?
5. Fire and Explosion Data, cont’d
Extinguishing Media: foam, H2O
spray(fog), dry chem, CO2
Special Fire Fighting Proc: keep fireexposed containers cool w/H2O
Unusual Fire And Expl Hazards: liq is
volatile/gives off invisible vapour;
may settle in low areas
What’s in an MSDS?
6. Product Reactivity
Stability: YES
Cond To Avoid: keep product away
from ignition sources such as
heat,sparks,pilot lights,static
electricity, open flames.
Materials To Avoid: strong oxidants
e.g., chlorine; O2, sodium and
calcium hypochlorite.
What’s in an MSDS?
6. Product Reactivity
•Hazardous Decomposition Products:
fumes, smoke, CO, sulfur oxides,
aldehydes
•Hazardous Polymerization?: NO
What’s in an MSDS?
7. Toxicological information
LD50-LC50 Mixture: ORAL LD50
(RABBIT) >3.16G/KG OF BODY
WT
Route Of Entry - Inhalation: YES
Route Of Entry - Skin: YES
Route Of Entry - Ingestion: NO
Definition: LD50
• LD50 (Lethal Dose50) is the
amount of a substance that,
when administered by a defined
route of entry (e.g. oral or
dermal) over a specified period
of time, is expected to cause
the death of 50 per cent of a
defined animal population.
Definition: LC50
• LC50 (Lethal Concentration50) is
the amount of a substance in
air that, when given by
inhalation over a specified
period of time, is expected to
cause the death in 50 per cent
of a defined animal population.
What’s in an MSDS?
7. Tox. information, cont’d
Signs/Symptoms Of Overexp: high
vap concentration (>1000ppm)
irritation of eyes, resp tract.
headaches, dizziness, anesthesia,
drowsiness, unconsciousness, other
CNS effects including death.
What’s in an MSDS?
7. Tox. information, cont’d
Carcinogenicity - IARC: NO
Carcinogenicity - OSHA: NO
What’s in an MSDS?
8. Preventive measures
Respiratory Protection: none specified
by manufacturer.
ventilation: use only w/venti sufficient
to prevent exceeding recommended
exposure limit
limit buildup of explo concen. No
smoke/flame use/ign source.
What’s in an MSDS?
8. Preventive measures cont’d
ProtectiveGloves: chem-resist gloves.
Eye Protection: splash gogg,face
shields.
Other Protective Equipment: chemresist apron/other imperv cloth if
needed.
What’s in an MSDS?
8. Preventive measures cont’d
Storage: Keep cntnr clsd when not in
use. Do not store near
heat/sparks/flame/strong oxid.
Effectively ground.
NFPA: Use approp eqmpt. NFPA-70.
What’s in an MSDS?
8. Preventive measures cont’d
Spills : elimnate ign sources. keep
people away. Recover free portion.
Add sand/earth/suitable absorbent.
Min breath vap/skin contact. Venti
confined spaces.Opn windows/doors.
Keep out of sewers/ watercourses
w/dike/impound. Conform to
applicable gov’t regs.
What’s in an MSDS?
9. First Aid Measures
Emergency/First Aid Procedure:
EYE:flush w/clear water for 15mins/til
irritation subsides. If irrit persists call
physician.
SKIN: remove contaminated clothing.
Wash skin w/soap/water.
Controlled Products Characteristics and Precautions
Class A: Compressed Gas
Characteristics
´ Gas inside cylinder is
under pressure
´ The cylinder may
explode if heated or
damaged
´ Sudden release of high
pressure gas streams
may puncture skin and
cause fatal embolism
Class A: Compressed Gas
Precautions
Transport and handle
with care
Make sure cylinders are
properly secured
Store away from
sources of heat or fire
Use proper regulator
Class B: Flammable and
Combustible Material
Characteristics
May burn or explode
when exposed to
heat, sparks or
flames
Flammable: burns
readily at room
temperature
Combustible: burns
when heated
Class B: Flammable and
Combustible Material
Precautions
Store away from
Class C (oxidizing
materials)
Store away from
sources of heat,
sparks and flame
Do not smoke near
these materials
Class C:
Oxidizing Material
Characteristics
Can cause other
materials to burn or
explode by providing
oxygen
May burn skin and
eyes on contact
Class C:
Oxidizing Material
Precautions
Store away from Class
B (flammable and
combustible) materials
Store away from
sources of heat and
ignition
Wear the
recommended protective
equipment and clothing
Class D, Division 1
Materials Causing Immediate and
Serious Toxic Effects
Characteristics
May cause immediate
death or serious injury if
inhaled, swallowed, or
absorbed through the skin
Class D, Division 1
Materials Causing Immediate and
Serious Toxic Effects
Precautions
Avoid inhaling gas or vapours
Avoid skin and eye contact
Wear the recommended
protective equipment and
clothing
Do not eat, drink or smoke
near these materials
Wash hands after handling
Class D, Division 2
Materials Causing Other Toxic Effects
Characteristics
´May cause death or permanent
injury following repeated or longterm exposure
´May irritate eyes, skin and
breathing passages: may lead to
chronic lung problems and skin
sensitivity
´May cause liver or kidney
damage, cancer, birth defects or
sterility
Class D, Division 2
Materials Causing Other Toxic Effects
Precautions
Avoid inhaling gas or vapours
Avoid skin and eye contact
Wear the recommended
protective equipment and
clothing
Do not eat, drink or smoke
near these materials
Wash hands after handling
Class D, Division 3
Biohazardous Infectious Material
Characteristics
Contact with microbiological
agents (e.g., bacteria,
viruses, fungi and their
toxins) may cause illness or
death
Class D, Division 3
Biohazardous Infectious Material
Precautions
Wear the recommended
protective equipment and
clothing
Work with these materials
in designated areas
Disinfect area after
handling
Wash hands after
handling
Class E: Corrosive Material
Characteristics
´Will burn eyes and skin on
contact
´Will burn tissues of
respiratory tract if inhaled
7
Class E: Corrosive Material
Precautions
Store acids and bases in
separate areas
Avoid inhaling these
materials
Avoid contact with skin
and eyes
Wear the recommended
protective equipment and
clothing
Class F: Dangerously Reactive
Material
Characteristics
May be unstable,
reacting dangerously to
jarring, compression,
heat or exposure to light
May burn, explode or
produce dangerous
gases when mixed with
incompatible materials
Class F: Dangerously Reactive
Material
Characteristics
Store away from heat
Avoid shock and friction
Wear the recommended
protective equipment and
clothing