SDS
STANLEY CHALKS SDS
STANLEY CHALKS SDS
PAGE 10 OF 11
DEFINITIONS OF TERMS (Continued)
EXPOSURE LIMITS IN AIR (continued):
DFG MAK Pregnancy Risk Group Classification: Group A: A risk of damage to the
developing embryo or fetus has been unequivocally demonstrated. Exposure of pregnant
women can lead to damage of the developing organism, even when MAK and BAT (Biological
Tolerance Value for Working Materials) values are observed.
DFG MAK Pregnancy Risk Group Classification (continued): Group B: Currently
available information indicates a risk of damage to the developing embryo or fetus must be
considered to be probable. Damage to the developing organism cannot be excluded when
pregnant women are exposed, even when MAK and BAT values are observed. Group C:
There is no reason to fear a risk of damage to the developing embryo or fetus when MAK and
BAT values are observed. Group D: Classification in one of the groups A-C is not yet
possible because, although the data available may indicate a trend, they are not sufficient for
final evaluation.
IDLH-Immediately Dangerous to Life and Health: This level represents a concentration
from which one can escape within 30-minutes without suffering escape-preventing or
permanent injury.
LOQ: Limit of Quantitation.
MAK: Federal Republic of Germany Maximum Concentration Values in the workplace.
NE: Not Established. When no exposure guidelines are established, an entry of NE is made
for reference.
NIC: Notice of Intended Change.
NIOSH CEILING: The exposure that shall not be exceeded during any part of the workday. If
instantaneous monitoring is not feasible, the ceiling shall be assumed as a 15-minute TWA
exposure (unless otherwise specified) that shall not be exceeded at any time during a
workday.
NIOSH RELs: NIOSH‟s Recommended Exposure Limits.
PEL-Permissible Exposure Limit: OSHA‟s Permissible Exposure Limits. This
exposure value means exactly the same as a TLV, except that it is enforceable by
OSHA. The OSHA Permissible Exposure Limits are based in the 1989 PELs and the
June, 1993 Air Contaminants Rule (Federal Register: 58: 35338-35351 and 58: 40191).
Both the current PELs and the vacated PELs are indicated. The phrase, “Vacated
1989 PEL,” is placed next to the PEL that was vacated by Court Order.
SKIN: Used when a there is a danger of cutaneous absorption.
STEL-Short Term Exposure Limit: Short Term Exposure Limit, usually a 15-minute
time-weighted average (TWA) exposure that should not be exceeded at any time
during a workday, even if the 8-hr TWA is within the TLV-TWA, PEL-TWA or REL-
TWA.
TLV-Threshold Limit Value: An airborne concentration of a substance that represents
conditions under which it is generally believed that nearly all workers may be repeatedly
exposed without adverse effect. The duration must be considered, including the 8-hour.
TWA-Time Weighted Average: Time Weighted Average exposure concentration for a
conventional 8-hr (TLV, PEL) or up to a 10-hr (REL) workday and a 40-hr workweek.
HAZARDOUS MATERIALS IDENTIFICATION SYSTEM HAZARD
RATINGS: This rating system was developed by the National Paint and Coating
Association and has been adopted by industry to identify the degree of chemical hazards.
HEALTH HAZARD: 0 (Minimal Hazard: No significant health risk, irritation of skin or eyes not
anticipated. Skin Irritation: Essentially non-irritating. PII or Draize = “0”. Eye Irritation:
Essentially non-irritating, or minimal effects which clear in < 24 hours [e.g. mechanical
irritation]. Draize = “0”. Oral Toxicity LD
50
Rat: < 5000 mg/kg. Dermal Toxicity LD
50
Rat or
Rabbit: < 2000 mg/kg. Inhalation Toxicity 4-hrs LC
50
Rat: < 20 mg/L.); 1 (Slight Hazard: Minor
reversible Injury may occur; slightly or mildly irritating. Skin Irritation: Slightly or mildly
irritating. Eye Irritation: Slightly or mildly irritating. Oral Toxicity LD
50
Rat: > 500-5000 mg/kg.
Dermal Toxicity LD
50
Rat or Rabbit: > 1000-2000 mg/kg. Inhalation Toxicity LC
50
4-hrs Rat: >
2-20 mg/L);2 (Moderate Hazard: Temporary or transitory injury may occur. Skin Irritation:
Moderately irritating; primary irritant; sensitizer. PII or Draize > 0, < 5. Eye Irritation:
Moderately to severely irritating and/or corrosive; reversible corneal opacity; corneal
involvement or irritation clearing in 8-21 days. Draize > 0, < 25. Oral Toxicity LD
50
Rat: > 50-
500 mg/kg. Dermal Toxicity LD
50
Rat or Rabbit: > 200-1000 mg/kg. Inhalation Toxicity LC
50
4-
hrs Rat: > 0.5-2 mg/L.); 3 (Serious Hazard: Major injury likely unless prompt action is taken
and medical treatment is given; high level of toxicity; corrosive. Skin Irritation: Severely
irritating and/or corrosive; may destroy dermal tissue, cause skin burns, dermal necrosis. PII
or Draize > 5-8 with destruction of tissue. Eye Irritation: Corrosive, irreversible destruction of
ocular tissue; corneal involvement or irritation persisting for more than 21 days. Draize > 80
with effects irreversible in 21 days. Oral Toxicity LD
50
Rat: > 1-50 mg/kg. Dermal Toxicity
LD
50
Rat or Rabbit: > 20-200 mg/kg. Inhalation Toxicity LC
50
4-hrs Rat: > 0.05-0.5 mg/L.); 4
(Severe Hazard: Life-threatening; major or permanent damage may result from single or
repeated exposure. Skin Irritation: Not appropriate. Do not rate as a “4”, based on skin
irritation alone. Eye Irritation: Not appropriate. Do not rate as a “4”, based on eye irritation
alone. Oral Toxicity LD
50
Rat: < 1 mg/kg. Dermal Toxicity LD
50
Rat or Rabbit: < 20 mg/kg.
Inhalation Toxicity LC
50
4-hrs Rat: < 0.05 mg/L).
FLAMMABILITY HAZARD: 0 (Minimal Hazard-Materials that will not burn in air when
exposure to a temperature of 815.5C [1500F] for a period of 5 minutes.); 1 (Slight Hazard-
Materials that must be pre-heated before ignition can occur. Material require considerable
pre-heating, under all ambient temperature conditions before ignition and combustion can
occur, Including: Materials that will burn in air when exposed to a temperature of 815.5C
(1500F) for a period of 5 minutes or less; Liquids, solids and semisolids having a flash point at
or above 93.3C [200F] (e.g. OSHA Class IIIB, or; Most ordinary combustible materials [e.g.
wood, paper, etc.]; 2 (Moderate Hazard-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 in air, but under high
ambient temperatures or moderate heating may release vapor in sufficient quantities to
produce hazardous atmospheres in air, Including: Liquids having a flash-point at or above
37.8C [100F]; Solid materials in the form of course dusts that may burn rapidly but that
generally do not form explosive atmospheres; Solid materials in a fibrous or shredded form
that may burn rapidly and create flash fire hazards (e.g. cotton, sisal, hemp; Solids and
semisolids that readily give off flammable vapors.);
HAZARDOUS MATERIALS IDENTIFICATION SYSTEM HAZARD
RATINGS (continued):
FLAMMABILITY HAZARD (continued): 3 (Serious Hazard- 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, unaffected by
ambient temperature, are readily ignited under almost all conditions, including: Liquids having
a flash point below 22.8C [73F] and having a boiling point at or above 38°C [100°F] and
below 37.8C [100F] [e.g. OSHA Class IB and IC]; Materials that on account of their physical
form or environmental conditions can form explosive mixtures with air and are readily
dispersed in air [e.g., dusts of combustible solids, mists or droplets of flammable liquids];
Materials that burn extremely rapidly, usually by reason of self-contained oxygen [e.g. dry
nitrocellulose and many organic peroxides]); 4 (Severe Hazard-Materials that will rapidly or
completely vaporize at atmospheric pressure and normal ambient temperature or that are
readily dispersed in air, and which will burn readily, including: Flammable gases; Flammable
cryogenic materials; Any liquid or gaseous material that is liquid while under pressure and has
a flash point below 22.8C [73F] and a boiling point below 37.8C [100F] [e.g. OSHA Class
IA; Material that ignite spontaneously when exposed to air at a temperature of 54.4C [130F]
or below [e.g. pyrophoric]).
PHYSICAL HAZARD: 0 (Water Reactivity: Materials that do not react with water. Organic
Peroxides: Materials that are normally stable, even under fire conditions and will not react with
water. Explosives: Substances that are Non-Explosive. Unstable Compressed Gases: No
Rating. Pyrophorics: No Rating. Oxidizers: No “0” rating allowed. Unstable Reactives:
Substances that will not polymerize, decompose, condense or self-react.); 1 (Water Reactivity:
Materials that change or decompose upon exposure to moisture. Organic Peroxides:
Materials that are normally stable, but can become unstable at high temperatures and
pressures. These materials may react with water, but will not release energy. Explosives:
Division 1.5 & 1.6 substances that are very insensitive explosives or that do not have a mass
explosion hazard. Compressed Gases: Pressure below OSHA definition. Pyrophorics: No
Rating. Oxidizers: Packaging Group III; Solids: any material that in either concentration
tested, exhibits a mean burning time less than or equal to the mean burning time of a 3:7
potassium bromate/cellulose mixture and the criteria for Packing Group I and II are not met.
Liquids: any material that exhibits a mean pressure rise time less than or equal to the
pressure rise time of a 1:1 nitric acid (65%)/cellulose mixture and the criteria for Packing
Group I and II are not met. Unstable Reactives: Substances that may decompose, condense
or self-react, but only under conditions of high temperature and/or pressure and have little or
no potential to cause significant heat generation or explosive hazard. Substances that readily
undergo hazardous polymerization in the absence of inhibitors.); 2 (Water Reactivity:
Materials that may react violently with water. Organic Peroxides: Materials that, in
themselves, are normally unstable and will readily undergo violent chemical change, but will
not detonate. These materials may also react violently with water. Explosives: Division 1.4 –
Explosive substances where the explosive effect are largely confined to the package and no
projection of fragments of appreciable size or range are expected. An external fire must not
cause virtually instantaneous explosion of almost the entire contents of the package.
Compressed Gases: Pressurized and meet OSHA definition but < 514.7 psi absolute at
21.1C (70F) [500 psig]. Pyrophorics: No Rating. Oxidizers: Packing Group II Solids: any
material that, either in concentration tested, exhibits a mean burning time of less than or equal
to the mean burning time of a 2:3 potassium bromate/cellulose mixture and the criteria for
Packing Group I are not met. Liquids: any material that exhibits a mean pressure rise time
less than or equal to the pressure rise of a 1:1 aqueous sodium chlorate solution
(40%)/cellulose mixture and the criteria for Packing Group I are not met. Unstable Reactives:
Substances that may polymerize, decompose, condense, or self-react at ambient temperature
and/or pressure, but have a low potential for significant heat generation or explosion.
Substances that readily form peroxides upon exposure to air or oxygen at room
temperature);3 (Water Reactivity: Materials that may form explosive reactions with water.
Organic Peroxides: Materials that are capable of detonation or explosive reaction, but require
a strong initiating source, or must be heated under confinement before initiation; or materials
that react explosively with water. Explosives: Division 1.2 – Explosive substances that have a
fire hazard and either a minor blast hazard or a minor projection hazard or both, but do not
have a mass explosion hazard. Compressed Gases: Pressure > 514.7 psi absolute at 21.1C
(70F) [500 psig]. Pyrophorics: No Rating. Oxidizers: Packing Group I Solids: any material
that, in either concentration tested, exhibits a mean burning time less than the mean burning
time of a 3.:2 potassium bromate/cellulose mixture. Liquids: Any material that spontaneously
ignites when mixed with cellulose in a 1:1 ratio, or which exhibits a mean pressure rise time
less than the pressure rise time of a 1:1 perchloric acid (50%)/cellulose mixture. Unstable
Reactives: Substances that may polymerize, decompose, condense or self-react at ambient
temperature and/or pressure and have a moderate potential to cause significant heat
generation or explosion.); 4 (Water Reactivity: Materials that react explosively with water
without requiring heat or confinement. Organic Peroxides: Materials that are readily capable
of detonation or explosive decomposition at normal temperature and pressures. Explosives:
Division 1.1 & 1.2-explosive substances that have a mass explosion hazard or have a
projection hazard. A mass explosion is one that affects almost the entire load instantaneously.
Compressed Gases: No Rating. Pyrophorics: Add to the definition of Flammability “4”.
Oxidizers: No “4” rating. Unstable Reactives: Substances that may polymerize, decompose,
condense or self-react at ambient temperature and/or pressure and have a high potential to
cause significant heat generation or explosion.).
NATIONAL FIRE PROTECTION ASSOCIATION HAZARD RATINGS:
HEALTH HAZARD: 0 (materials that, under emergency conditions, would offer no hazard
beyond that of ordinary combustible materials): Gases and vapors whose LC
50
for acute
inhalation toxicity is greater than 10,000 ppm. Dusts and mists whose LC
50
for acute
inhalation toxicity is greater than 200 mg/L. Materials whose LD
50
for acute dermal toxicity
is greater than 2000 mg/kg. Materials whose LD
50
for acute oral toxicity is greater than
2000 mg/kg. Materials that are essentially non-irritating to the respiratory tract, eyes and
skin. 1 (materials that, under emergency conditions, can cause significant irritation): Gases
and vapors whose LC
50
for acute inhalation toxicity is greater than 5,000 ppm but less than
or equal to 10,000 ppm. Dusts and mists whose LC
50
for acute inhalation toxicity is greater
than 10 mg/L but less than or equal to 200 mg/L. Materials whose LD
50
for acute dermal
toxicity is greater than 1000 mg/kg but less than or equal to 2000 mg/kg. Materials whose
LD
50
for acute oral toxicity is greater than 500 mg/kg but less than or equal to 2000 mg/kg.
Materials that cause slight to moderate irritation to the respiratory tract, eyes and skin.