SDS
STANLEY CHALKS SDS
STANLEY CHALKS SDS
PAGE 11 OF 11
DEFINITIONS OF TERMS (Continued)
NATIONAL FIRE PROTECTION ASSOCIATION HAZARD RATINGS
(continued):
HEALTH HAZARD (continued): 2 (materials that, under emergency conditions, can cause
temporary incapacitation or residual injury): Gases and vapors whose LC
50
for acute
inhalation toxicity is greater than 3,000 ppm but less than or equal to 5,000 ppm. Dusts and
mists whose LC
50
for acute inhalation toxicity is greater than 2 mg/L but less than or equal
to 10 mg/L. Materials whose LD
50
for acute dermal toxicity is greater than 200 mg/kg but
less than or equal to 1000 mg/kg. Materials whose LD
50
for acute oral toxicity is greater
than 50 mg/kg but less than or equal to 500 mg/kg. Any liquid whose saturated vapor
concentration at 20C (68F) is equal to or greater than one-fifth its LC
50
for acute
inhalation toxicity, if its LC
50
is less than or equal to 5000 ppm and that does not meet the
criteria for either degree of hazard 3 or degree of hazard 4. Compressed liquefied gases
with boiling points between -30C (-22F) and -55C (-66.5F) that cause severe tissue
damage, depending on duration of exposure. Materials that are respiratory irritants.
Materials that cause severe, but reversible irritation to the eyes or are lachrymators.
Materials that are primary skin irritants or sensitizers. 3 (materials that, under emergency
conditions, can cause serious or permanent injury): Gases and vapors whose LC
50
for acute
inhalation toxicity is greater than 1,000 ppm but less than or equal to 3,000 ppm. Dusts
and mists whose LC
50
for acute inhalation toxicity is greater than 0.5 mg/L but less than or
equal to 2 mg/L. Materials whose LD
50
for acute dermal toxicity is greater than 40 mg/kg
but less than or equal to 200 mg/kg. Materials whose LD
50
for acute oral toxicity is greater
than 5 mg/kg but less than or equal to 50 mg/kg. Any liquid whose saturated vapor
concentration at 20C (68F) is equal to or greater than one-fifth its LC
50
for acute
inhalation toxicity, if its LC
50
is less than or equal to 3000 ppm and that does not meet the
criteria for degree of hazard 4. Compressed liquefied gases with boiling points between -
30C (-22F) and -55C (-66.5F) that cause frostbite and irreversible tissue damage.
Materials that are respiratory irritants. Cryogenic gases that cause frostbite and irreversible
tissue damage. Materials that are corrosive to the respiratory tract. Materials that are
corrosive to the eyes or cause irreversible corneal opacity. Materials that are corrosive to
the skin. 4 (materials that, under emergency conditions, can be lethal): Gases and vapors
whose LC
50
for acute inhalation toxicity less than or equal to 1,000 ppm. Dusts and mists
whose LC
50
for acute inhalation toxicity is less than or equal to 0.5 mg/L. Materials whose
LD
50
for acute dermal toxicity is less than or equal to 40 mg/kg. Materials whose LD
50
for
acute oral toxicity is less than or equal to 5 mg/kg. Any liquid whose saturated vapor
concentration at 20C (68F) is equal to or greater than one-fifth its LC
50
for acute
inhalation toxicity, if its LC
50
is less than or equal to 1000 ppm.
FLAMMABILITY HAZARD: 0 Materials that will not burn under typical fire conditions,
including intrinsically noncombustible materials such as concrete, stone, and sand:
Materials that will not burn in air when exposed to a temperature of 816C (1500F) for a
period of 5 minutes in according with Annex D. 1 Materials that must be preheated before
ignition can occur. Materials in this degree require considerable preheating, under all
ambient temperature conditions, before ignition and combustion can occur: Materials that
will burn in air when exposed to a temperature of 816C (1500F) for a period of 5 minutes
in accordance with Annex D. Liquids, solids and semisolids having a flash point at or
above 93.4C (200F) (i.e. Class IIIB liquids). Liquids with a flash point greater than 35C
(95F) that do not sustain combustion when tested using the Method of Testing for
Sustained Combustibility, per 49 CFR 173, Appendix H or the UN Recommendation on the
Transport of Dangerous Goods, Model Regulations (current edition) and the related Manual
of Tests and Criteria (current edition). Liquids with a flash point greater than 35C (95F) in
a water-miscible solution or dispersion with a water non-combustible liquid/solid content of
more than 85 percent by weight. Liquids that have no fire point when tested by ASTM D 92
Standard Test Method for Flash and Fire Points by Cleveland Open Cup, up to a boiling
point of the liquid or up to a temperature at which the sample being tested shows an
obvious physical change. Combustible pellets with a representative diameter of greater
than 2 mm (10 mesh). Solids containing greater than 0.5 percent by weight of a flammable
or combustible solvent are rated by the closed up flash point of the solvent. Most ordinary
combustible materials. 2 Materials that must be moderately heated or exposed to relatively
high ambient temperatures before ignition can occur. Materials in this degree would not
under normal conditions form hazardous atmospheres with air, but under high ambient
temperatures or under moderate heating could release vapor in sufficient quantities to
produce hazardous atmospheres with air: Liquids having a flash point at or above 37.8C
(100F) and below 93.4C (200F) (i.e. Class II and Class IIIA liquids.) Solid materials in
the form of powders or coarse dusts of representative diameter between 420 microns (40
mesh) and 2 mm (10 mesh) that burn rapidly but that generally do not form explosive
mixtures in air. Solid materials in fibrous or shredded form that burn rapidly and create
flash fire hazards, such as cotton, sisal and hemp. Solids and semisolids that readily give
off flammable vapors. Solids containing greater than 0.5 percent by weight of a flammable
or combustible solvent are rated by the closed cup flash point of the solvent. 3 Liquids and
solids that can be ignited under almost all ambient temperature conditions. Materials in this
degree produce hazardous atmospheres with air under almost all ambient temperatures or,
though unaffected by ambient temperatures, are readily ignited under almost all conditions:
Liquids having a flash point below 22.8C (73F) and having a boiling point at or above
37.8C (100F) and those liquids having a flash point at or above 22.8C (73F) and below
37.8C (73F) and below 37.8C (100F) (i.e. Class IB and IC liquids). Materials that, on
account of their physical form or environmental conditions, can form explosive mixtures
with air and are readily dispersed in air. Flammable or combustible dusts with a
representative diameter less than 420 microns (40 mesh). Materials that burn with extreme
rapidity, usually by reason of self-contained oxygen (e.g. dry nitrocellulose and many
organic peroxides). Solids containing greater than 0.5 percent by weight of a flammable or
combustible solvent are rated by the closed cup flash point of the solvent.
NATIONAL FIRE PROTECTION ASSOCIATION HAZARD RATINGS
(continued):
FLAMMABILITY HAZARD (continued): 4 Materials that will rapidly or completely vaporize
at atmospheric pressure and normal ambient temperature or that are readily dispersed in
air and will burn readily: Flammable gases. Flammable cryogenic materials. Any liquid or
gaseous materials that is liquid while under pressure and has a flash point below 22.8C
(73F) and a boiling point below 37.8C (100F) (i.e. Class IA liquids). Materials that ignite
when exposed to air, Solids containing greater than 0.5 percent by weight of a flammable
or combustible solvent are rated by the closed cup flash point of the solvent.
INSTABILITY HAZARD: 0 Materials that in themselves are normally stable, even under fire
conditions: Materials that have an estimated instantaneous power density (product of heat of
reaction and reaction rate) at 250C (482F) below 0.01 W/mL. Materials that do not exhibit
an exotherm at temperatures less than or equal to 500C (932F) when tested by differential
scanning calorimetry. 1 Materials that in themselves are normally stable, but that can
become unstable at elevated temperatures and pressures: Materials that have an estimated
instantaneous power density (product of heat of reaction and reaction rate) at 250C (482F)
at or above 0.01 W/mL and below 10 W/mL. 2 Materials that readily undergo violent
chemical change at elevated temperatures and pressures: Materials that have an estimated
instantaneous power density (product of heat of reaction and reaction rate) at 250C (482F)
at or above 10 W/mL and below 100W/mL. 3 Materials that in themselves are capable of
detonation or explosive decomposition or explosive reaction, but that require a strong
initiating source or that must be heated under confinement before initiation: Materials that
have an estimated instantaneous power density (product of heat of reaction and reaction rate)
at 250C (482F) at or above 100 W/mL and below 1000 W/mL. Materials that are sensitive to
thermal or mechanical shock at elevated temperatures and pressures. 4 Materials that in
themselves are readily capable of detonation or explosive decomposition or explosive
reaction at normal temperatures and pressures: Materials that have an estimated
instantaneous power density (product of heat of reaction and reaction rate) at 250C (482F)
of 1000 W/mL or greater. Materials that are sensitive to localized thermal or mechanical shock
at normal temperatures and pressures.
FLAMMABILITY LIMITS IN AIR:
Much of the information related to fire and explosion is derived from the National Fire
Protection Association (NFPA). Flash Point - Minimum temperature at which a liquid gives off
sufficient vapors to form an ignitable mixture with air. Autoignition Temperature: The
minimum temperature required to initiate combustion in air with no other source of ignition.
LEL - the lowest percent of vapor in air, by volume, that will explode or ignite in the presence
of an ignition source. UEL - the highest percent of vapor in air, by volume, that will explode or
ignite in the presence of an ignition source.
ECOLOGICAL INFORMATION:
EC is the effect concentration in water. BCF = Bioconcentration Factor, which is used to
determine if a substance will concentrate in lifeforms which consume contaminated plant or
animal matter. TL
m
= median threshold limit; Coefficient of Oil/Water Distribution is
represented by log K
ow
or log K
oc
and is used to assess a substance‟s behavior in the
environment.
TOXICOLOGICAL INFORMATION:
Human and Animal Toxicology: Possible health hazards as derived from human data,
animal studies, or from the results of studies with similar compounds are presented. Definitions
of some terms used in this section are: LD
50
- Lethal Dose (solids & liquids) which kills 50% of
the exposed animals; LC
50
- Lethal Concentration (gases) which kills 50% of the exposed
animals; ppm concentration expressed in parts of material per million parts of air or water;
mg/m
3
concentration expressed in weight of substance per volume of air; mg/kg quantity of
material, by weight, administered to a test subject, based on their body weight in kg. Other
measures of toxicity include TDLo, the lowest dose to cause a symptom and TCLo the lowest
concentration to cause a symptom; TDo, LDLo, and LDo, or TC, TCo, LCLo, and LCo, the
lowest dose (or concentration) to cause lethal or toxic effects. Cancer Information: The
sources are: IARC - the International Agency for Research on Cancer; NTP - the National
Toxicology Program, RTECS - the Registry of Toxic Effects of Chemical Substances, OSHA
and CAL/OSHA. IARC and NTP rate chemicals on a scale of decreasing potential to cause
human cancer with rankings from 1 to 4. Subrankings (2A, 2B, etc.) are also used. Other
Information: BEI - ACGIH Biological Exposure Indices, represent the levels of determinants
which are most likely to be observed in specimens collected from a healthy worker who has
been exposed to chemicals to the same extent as a worker with inhalation exposure to the
TLV.
REGULATORY INFORMATION:
U.S. and CANADA:
ACGIH: American Conference of Governmental Industrial Hygienists, a professional
association which establishes exposure limits.
This section explains the impact of various laws and regulations on the material. EPA is the
U.S. Environmental Protection Agency. NIOSH is the National Institute of Occupational Safety
and Health, which is the research arm of the U.S. Occupational Safety and Health
Administration (OSHA). WHMIS is the Canadian Workplace Hazardous Materials Information
System. DOT and TC are the U.S. Department of Transportation and the Transport Canada,
respectively. Superfund Amendments and Reauthorization Act (SARA); the Canadian
Domestic/Non-Domestic Substances List (DSL/NDSL); the U.S. Toxic Substance Control Act
(TSCA); Marine Pollutant status according to the DOT; the Comprehensive Environmental
Response, Compensation, and Liability Act (CERCLA or Superfund); and various state
regulations. This section also includes information on the precautionary warnings which
appear on the material‟s package label. OSHA - U.S. Occupational Safety and Health
Administration.