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Safety Data Sheet（SDS）
Date of Issue: 1st September, 2005
Date Revised: 23rd May, 2023

1. Identification of the Substance and of the Company
Product Identifier:Ceramic (include the coated or surface treated Ceramic)
Supplier Information:
Company Name:NTK CUTTING TOOLS .CO., LTD.
Address:
2808 Iwasaki, Komaki-shi, Aichi, Japan <485-8510>
Telephone Number:+81-568-76-1270
FAX Number:+81-568-76-1288
Emergency Telephone： +81-568-76-1270
Recommended Use of the Ceramic
Cutting and drilling tools for metallic materials
Restrictions on Use of the Ceramic
Do not use for other than the specified purpose
Attention to the Phase/State of the Ceramic
・Ceramic as solid state like cutting tools is chemically stable and safe at explosive,
flammable, combustible, pyrophoric, water-reactive, and oxidizability under normal
environment.
・Ceramic is safe for use as the cutting tools (grinding, machining, rolling for metals) undernormal condition.
・This SDS informs about the dust, fume or vapor which occur from Ceramic producing
process such as raw material powder handling and grinding.

2. Hazard Identification
The GHS Classification
Some data (such as the burning rate test data, etc.) for the dust, fume or vapor which
occur from Ceramic producing process are unavailable. Therefore, they are not beclassified by GHS.
In here, GHS classification of the each metallic ingredients (cobalt, nickel andchromium) for composing the Ceramic can be disclosed. In addition, other hazards andharmful effects (for health, environment, physical and chemical) which are not listed are
unclassifiable or non-applicable by GHS.
GHS classification for the hazards of cobalt alone in below,(When cobalt is included as ingredients of Ceramic.)
Health Hazard
Category4
・Acute toxicity (oral)
・Acute toxicity (inhaled: dust, mist) Category1・Serious eye damage / eye irritation Category2B
Category1A・Respiratory sensitization
Category1A・Skin sensitization
Category2
・Carcinogenicity
Category1B
・Reproductive toxicity
Category1
・Specific target organ toxicity(Respiratory)(Single exposure)
Category1
・Specific target organ toxicity(Respiratory, Heart,(Repeated exposure)
Thyroid, Blood)整理番号 機工－０１３－１０

Environmental
Hazard:2/12

・Hazardous to the aquatic
environment – prolonged (Chronic
hazard)・Hazardous to the aquatic
environment – repeated (Acutehazard)Category1
Category1

GHS classification for the hazards of nickel alone in below,(When nickel is included as ingredients of Ceramic.)
Health Hazard
Category1
・Respiratory sensitization
Category1
・Skin sensitization
Category2
・Carcinogenicity
Category1
・Specific target organ toxicity(Respiratory tract irritation)(Single exposure)
Category1
・Specific target organ toxicity(Respiratory)(Repeated exposure)Environmental
Category4
・Hazardous to the aquatic
Hazard:environment – prolonged (Chronic
hazard)GHS classification for the hazards of chromium alone in below,(When chromium is included as ingredients of Ceramic.)
Health Hazard
Category2B・Serious eye damage
Category1
・Respiratory sensitization
Category1
・Skin sensitization
Category2
・Germ cell mutagenicity
Category2
・Specific target organ toxicity(Respiratory tract irritation)(Single exposure)
Category3
・Specific target organ toxicity(Respiratory)(Repeated exposure)
GHS Label Elements
GHS label elements of the each metallic ingredients (cobalt, nickel and chromium) forcomposing the Ceramic can be disclosed in below.
CobaltNickelChromium

HazardPictograms：

SignalWords：
HazardStatements：

Danger・Risk of causing
allergies, asthma or
breathing difficulties
if inhaled.
・Risk of causing anallergic skin reaction.
・May cause cancer.
・May cause adverse
effects on fertility or・Risk of causing
allergies, asthma or
breathing difficulties
if inhaled.
・Risk of causing anallergic skin reaction.
・May cause cancer.
・Respiratory andkidney disorders

・Risk of causing
allergies, asthma or
breathing difficulties
if inhaled.
・Risk of causing anallergic skin reaction.
・Suspected of
causing genetic
disease整理番号 機工－０１３－１０

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the unborn child.
・Cause of respiratory ・Failure to systemic・Risk of respiratory
failure due to longtoxicity
irritation.
term or repetitive
・Risk of respiratory
exposure.
・Cause ofirritation.
・May
beharmfultorespiratory failure
due to long-term oraquatic life due torepetitive exposure.
long lasting effects
・May be harmful toaquatic life due tolong lasting effects
Precautionary 【Prevention】
Statements： ･Obtain safety instructions* before use.
･Do not handle until all safety precautions have been read andunderstood.
･Use appropriate personal protection and ventilation system keeping
away from exposure.
･Wear suitable protective gloves.
･When insufficient ventilation, wear respirator as required.
･Do not breathe dust, fume or vapor.
･Do not eat, drink or smoke in handling area.
･Wash skin thoroughly after handling.
･Do not release into the environment.
【Responses】･ If inhaled, move to fresh air and take a rest with posture easy tobreathe.
･If respiratory symptoms occurs, contact a doctor.
･When feeling ill, get medical advice/attention.
･Take off contaminated clothing and wash before reuse.
･If on skin, rinse away immediately with a large amount of water andsoap.
･If skin irritation occurs, contact a doctor and get medical
advice/attention.
･If exposed or concerned, get medical advice/attention.
･If dust is in eyes, immediately wash away with clean water (remove thecontact lenses if possible). If irritation persists, get medical
advice/attention.
･If a large amount of dust is swallowed, get medical advice/attention
after ingesting plenty of water to dilute.
【Storage】･Avoid sudden changes of temperature and high humidity for storage.
【Disposal】･Dispose of contents/container to an approved waste disposal plantunder the laws.
*For safety instructions, refer to the Japan Cutting & Wear-resistant Tool Association
website（http://www.jta-tool.jp/）.

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3. Hazard Identification
Important Hazards and Effects
Danger: Ceramics is nonflammable in solid form and there is no risk of fire.
However, dusts resulting from cutting and grinding may bepyrophoric or explosive.
 Not reported on flash point, ignition point, explosive limits, etc.
Hazard: If dusts resulting from cutting and grinding are on skin or in eyes,
irritation may occur.
Environmental  Not reported on Ceramics
Effects:
4. Composition/Information on Ingredients
 Distinction between substance and mixture: Mixture Chemical name or general name: Ceramic
Ceramic may be coated or surface treated with the following substances.
AlN、Al2O3、TiC、TiCN、TiN、(Al,Ti)N、(Al,Cr)N、(Ti,Al,Cr)N、(Ti,Al,V)N、Cr3C2、CrN、(Ti,Si)N、(Ti,Zr)N、WC、VC、C（Diamond、DLC）
 Ingredients and concentration or concentration range (composition) of the Ceramic
Ingredient
Aluminum oxide

Chemical
Formula

CAS No

Al2O3
ZrO2
ZrC
Yb2O3
Y2O3
Dy2O3
MgO
Cr2O3
CeO2
La2O3

1344-28-1
1314-23-4
12070-14-3
1314-37-0
1314-36-9
1308-87-8
1309-48-4
1308-38-9
1306-38-3
1312-81-8

Official
Number of Law
for PRTR

Official Number ofIndustrial Safety
and Health Law

Composition
mass%

0-100
N/A
Appendix 9-189
0-15
N/A
Appendix 9-313
Zirconium Carbide
0-10
N/A
N/A
Ytterbium oxide
0-15
N/A
N/A
Yttrium oxide
0-5
N/A
Appendix 9-54
Dysprosium Oxide
0-5
N/A
N/A
Magnesium oxide
0-5
N/A
N/A
Chromium oxide
0-1Class 1:87
Appendix 9-142
Cerium oxide
N/A
N/A
0-5
Lanthanum Oxide
N/A
N/A
0-5
Silicon carbide
Class
1:667
0-40
SiC
409-21-2
Appendix 9-336
Aluminum nitride
N/A
N/A
0-20
AlN
24304-00-5
Silicon nitride
N/A
N/A
0-100
Si3N4
12033-89-5
Titanium nitride
N/A
N/A
0-30
TiN
25583-20-4
CobaltCo
7440-48-4
Class 1:132
Appendix 9-172
0-0.5
Cobalt oxide
Co3O41308-06-1
Class 1:132
NickelNi
7440-02-0
Class 1:308
Appendix 9-418
0-0.5
Nickel oxide
NiO
1313-99-1
Class 1:309
Tungsten CarbideWC
12070-12-1
N/A
N/A
0-85
Tantalum carbide
TaC
12070-06-3
N/A
N/A
0-20
Niobium carbide
NbC
12069-94-2
N/A
N/A
0-20
Titanium carbide
TiC
12070-08-5
N/A
N/A
0-75
Titanium carbonitride
TiCN
N/A
N/A
N/A
0-75
*For the details regarding the content of the designated chemical material such ascobalt, nickel and chromium (effective digit: 2), please contact to the above supplier.
*Even if the cemented carbide do not contain cobalt, nickel, chromium as an active
ingredient may include cobalt, nickel, chromium as an impurity.
Zirconium oxide整理番号 機工－０１３－１０

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5. First-Aid Measures
If Inhaled If the high concentration of dust is inhaled or respiratory symptoms (coughs, gasping,shortness of breath, etc.) are experienced, move to fresh air and take a rest with postureeasy to breathe. If breathing difficulties occur, administer oxygen inhalation. If breathinghas stopped, immediately administer artificial respiration and get medical
advice/attention.
 If irritation or rash persists, get medical advice and attention.
If on Skin If dust is contacted with skin, take off contaminated clothing and rinse the affected areawith soapy water thoroughly. If irritation or rash persists, get medical advice/attention.
If in Eyes
 If dust is in eyes, immediately wash away with clean water (remove the contact lenses if
possible). If irritation persists, get medical advice/attention.
If Swallowed If a large amount of dust is swallowed, get medical advice/attention after ingesting
plenty of water to dilute.
6. Fire-Fighting Measures
Suitable Extinguishing Media and Unsuitable Extinguishing Media To extinguish the fire of dust, use dry sand, expanded vermiculite, dilatable perlite, ABC
type (general, oil, electric fire) powder extinguishers or water (no water allowed for thedust containing cut powders of light metal such as magnesium and aluminum).
Special Protective Equipment and Emergency Procedures for Fire-Fighters
 In fighting a fire, wear a protective clothing, dust-proof respirator or respiratory
protective equipment.
7. Accidental Release Measures
Personal Precautions, Protective Equipment, and Emergency Procedures
 It is recommended that someone who cleans dust should wear clothing and respiratory
protective equipment to minimize exposure.
Environmental Precautions
 Dispose of dust as industrial wastes and prevent release in water systems.
Containment and Cleanup Methods and Equipment
 If there is dust which occur from Ceramic producing process, isolate the area and remove
with a cleaner equipped with a filter which can take up fine particles very efficiently. If
appropriate removing methods are not available, sweep with water sprayers or wet
mops.
8. Handling and Storage
Handling■ Technical Measures
 Ceramic is a stable substance and has little influence on health, but if it contacts dust
or grinding liquid containing cobalt or nickel for a long time or repeatedly, rough skin
may occur.
 If the disperse of dust containing cobalt or nickel is concerned, provide local exhaust
ventilation and use personal protective equipment to minimize exposure to human body.
■ Precautions for Safe Handling Obtain safety instructions before use.
 Do not handle until all safety precautions have been read and understood.
■ Contact Avoidance Take measures described in “Exposure Controls/Personal Protection.” Do not breathe dust, fume or vapor.
 Do not eat, drink or smoke in handling area.

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6/12■ Hygiene measures
 Wash skin thoroughly after handling.
 Do not release into the environment.
Storage■ Conditions for Safe Storage
 Avoid sudden changes of temperature and high humidity for storage.
■ Materials for Safe Container
 Use materials meeting the specific gravity of Ceramic
9. Exposure Controls/Personal Protection
Exposure Prevention
・Permissible concentration in working environment (reference value)
Ingredient
Aluminum oxide
Zirconium oxide
Zirconium Carbide
Ytterbium oxide
Yttrium oxide
Dysprosium Oxide
Magnesium oxide
Chromium oxide
Cerium oxide
Lanthanum Oxide
Silicon carbide
Aluminum nitride
Silicon nitride
Titanium nitride
CobaltCobalt oxide
NickelNickel oxide
Tungsten Carbide
Tantalum carbide
Niobium carbide
Titanium carbide
Titanium carbonitride*OSHA：*PEL：*ACGIH：*TLV：* Exposure
Limit：*N/A：

Chemical
Formula

OSHA* PEL*
mg/m3

ACGIH* TLV*
mg/m3

Japan Society for
Occupational Health
Exposure Limit*
mg/m3

Al2O3
ZrO2
ZrC
Yb2O3
Y2O3
Dy2O3
MgO
Cr2O3
CeO2
La2O3
SiC
AlN
Si3N4
TiN
Co
Co3O4
Ni
NiO
WC
TaC
NbC
TiC
TiCN

5 (as Al)5 (as Zr)
5 (as Zr)
N/A
1 (as Y)
N/A
15
0.5 (as Cr)
N/A
N/A
5
5 (as Al)
N/A
N/A
0.1
(as Co)1.0(as Ni)5 (as W)
5 (as Ta)
N/A
N/A
N/A

10
5 (as Zr)
5 (as Zr)
N/A
1 (as Y)
N/A
10
0.5 (as Cr)
N/A
N/A
3
1 (as Al)
N/A
N/A
0.02
(as Co)1.5(as Ni)5 (as W)
5 (as Ta)
N/A
N/A
N/A

N/A
0.5 (as Zr)
N/A
N/A
N/A
N/A
N/A
0.5 (as Cr)
N/A
N/A
N/A
N/A
N/A
N/A
0.05
(as Co)1.0(as Ni)
N/A
N/A
N/A
N/A
N/A

Occupational Safety & Health Administration U.S. Department
Permissible Exposure Limit
American Conference of Governmental Industrial Hygienists Inc.
Threshold Limit Value
If processing such as polishing and cutting that generates dust, foringredients with not indicated value, refer to the exposure limit of theJapan Society for Occupational Health
Not Applicable整理番号 機工－０１３－１０

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・Facility measures
Provide local exhaust ventilation so that dusts in the air may not exceed the exposure
limits in the above table. It is to be noted that management concentration of the cobalt(and its inorganic compounds) is to be 0.02mg/m3 in accordance with the working
environment assessment standard by Japanese Minister of Health, Labour and Welfare
under the paragraph (2), Article 65-2 of the Industrial Safety and Health Act in Japan.
In addition, cobalt (and its inorganic compounds) in the storage or handling, and that totake the necessary action conforming to the Ordinance on Prevention of Hazards due toSpecified Chemical Substances.
Protection Measures
 Respiratory Protection:
 Hand Protection:
 Eye/Face Protection:
 Skin/Body Protection:

Dust-proof respirators and respiratory protective equipment
are recommended.
Protective gloves for dust are recommended.
Eye and face protections for dust are recommended.
Avoid direct skin contact.
Clean up deposited dust on clothing, rags, etc. by washing or
absorbing with suitable filters but not by whisking off.
Change the contaminated clothing into clean one.

Hygiene Measure
Wash skin thoroughly after handling.

10. Physical and Chemical Properties
Physical State:
Color :
Odor:
Melting/Freezing Point:
Boiling or Initial Boiling Point andBoiling Range:
Flammability, Explosion Limits,
Flammability Limit, Flash Point,
Spontaneous Ignition Temperature,
Resolution Temperature:
pH:
Kinematic Viscosity:
Solubility:
Vapor Pressure:
Density and/or Relative Density:
Relative Gas Density:
Particle Properties:

Solid state
White, Gray, Pink, Green, Brown, Black or Gold solid
Odorless
No data available
No data available
No data available

No data available
No data available
Insoluble
No data available
3.0 - 11.0
No data available
No data available

11. Stability and Reactivity
A grain of dust which occur from Ceramic producing process is very fine and under the
specific conditions in which the dusts are mixed with grinding oil with low flash point, it
is possible to become pyrophoric. If dusts under very flammable conditions are dispersedin the air, it is possible to explode.
The each metallic ingredients (cobalt, nickel and chromium) for composing the Ceramic
has the following information about stability and reactivity under specific conditions.

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Stability and reactivity of cobalt alone in below,(When cobalt is included as ingredients of Ceramic.)
Reactivity, chemical stability:
Stable to heat and contact with water
Ignite spontaneously in air
Hazardous reactions:
It reacts with strong oxidizing agents
It reacts violently with oxygen, and it poses a riskof fire or explosion
It reacts violently with acid to generate hydrogen
Conditions to avoid:Contact with incompatible materials
Incompatible materials:
Strong oxidizing agents, acidHazardous decomposition products:
By combustion, cobalt oxide and fumes of cobalt
oxide may occur
Stability and reactivity of nickel alone in below,(When nickel is included as ingredients of Ceramic.)
Reactivity, chemical stability:
It is considered stable in storage and handling inaccordance with the laws and regulations
Hazardous reactions:
Metallic nickel is usually stabilized against
oxidation by the oxide film, fresh metal surfaces
without oxide film is rapidly oxidized by air. Thus,
fresh metallic nickel powder, there is a risk ofignition in air.
Conditions to avoid:No data available
Hazardous decomposition products:
No data available
Stability and reactivity of chromium alone in below,(When chromium is included as ingredients of Ceramic.)
Reactivity, chemical stability:
Stable under normal handling conditions
Hazardous reactions:
Reacts violently with strong oxidizing agents suchas hydrogen peroxide, it poses a risk of fire or
explosion.
It reacts with dilute hydrochloric acid and dilute
sulfuric acid.
Conditions to avoid:
The alkali or alkaline carbonate is Incompatible.
When mixed with air in powder or granular form,
there is a possibility of dust explosion.
Incompatible materials:
Strong oxidizing agents, dilute hydrochloric acid,
dilute sulfuric acid, alkali, alkali carbonate
Hazardous decomposition products:
During combustion, there can be irritating or toxic
fumes and gases.

12. Toxicological Information
Acute Toxicity:
Skin Corrosion/Irritation:
Serious Eye Damage/Eye Irritation:
Respiratory or Skin Sensitization:
Germ Cell Mutagenicity:
Carcinogenicity:

No data available on Ceramic
No data available on Ceramic
No data available on Ceramic
No data available on Ceramic
No data available on CeramicGroup 2A on IARC, as cobalt powder
coexisting with tungsten carbide powder.
Suspected to be carcinogenic in humans(Ref.1)
Reproductive Toxicity:
No data available on CeramicSpecific Target Organ Toxicity/Systemic Toxicity: No data available on Ceramic(Single Exposure)整理番号 機工－０１３－１０

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Specific Target Organ Toxicity/Systemic Toxicity: No data available on Ceramic(Repeated Exposure)
Aspiration Hazard:
No data available on Ceramic

13. Ecological Information
Ecotoxicity, Persistence, Degradability, Bioaccumulation, Mobility in soil, Hazardous to theozone layer
 No data available on Ceramic
14. Disposal Considerations
Safe and environmentally desirable disposal or recycle method
 For disposal, conform to the applicable laws regarding industrial wastes such as ‘Waste
Disposal and Public Cleansing Law’ and relevant local by laws.
15. Transport Information
International Regulations
UN Number:
Not applicable
Proper Shipping
Not applicableName
UN Hazard Class:Not applicable
Packing GroupNot applicable
Marine Pollutant:
Not applicable*When transporting a powder of metallic ingredients (cobalt, nickel) for composing theCeramic, there is a possibility that it is necessary to take appropriate action in accordancewith the relevant provisions established by IMO (International Maritime Organization),
ICAO (International Civil Aviation Organization), IATA (International Air Transport
Association).
Domestic Regulations
Land Regulatory Information

In accordance with
the Fire Service Act/
the Road Act
Marine Transportation
In accordance with
Information:
the Ship Safety Act/
the Act on Port
Regulations
Marine Pollutant:
Not applicable
Aviation transportation
In accordance with
the Civil Aeronautics
information：
Act*When transporting a powder of metallic ingredients (cobalt, nickel) for composing theCeramic, there is a possibility that it is necessary to take appropriate action in accordancewith the relevant provisions of Ship Safety Law and the Aviation Law.
Special Safety Measures for Transportation and Transportation Method
When transporting the dust which occur from Ceramic producing process, make sure that
there is no damage or corrosion or leakage of the container, to ensure implementation of
the prevention of collapse of cargo.

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16. Regulatory Information
Name and Information of Applicable Regulatory Law for Pollutant Release and Transfer Register (PRTR)
Silicon Carbide: “Class 1 designated chemical substances”, Cabinet Order No.667
Cobalt: “Class 1 designated chemical substances”, Cabinet Order No.132
Cobalt oxide: “Class 1 designated chemical substances”, Cabinet Order No.132
Nickel: “Class 1 designated chemical substances”, Cabinet OrderNo.308
Nickel oxide: “Class 1 designated chemical substances”, Cabinet OrderNo.309
Chromium oxide: “Class 1 designated chemical substances”, Cabinet OrderNo.87
 Industrial Safety and Health Law, Ordinance on Prevention of Hazards due toSpecified Chemical Substances
Aluminum oxide: The substances are defined in the Article 57-2 of the Act, and thealuminum oxide is listed by No.189 in Appended Table9 in the
Article 18-2 of the Enforcement Order as “Dangerous or Harmful
Substances to be notified their names, etc.”
Zirconium oxide: The substances are defined in the Article 57-2 of the Act, and thezirconium oxide is listed by No.313 in Appended Table9 in the
Article 18-2 of the Enforcement Order as “Dangerous or Harmful
Substances to be notified their names, etc.”
Yttrium oxide: The substances are defined in the Article 57-2 of the Act, and theyttrium oxide is listed by No.54 in Appended Table9 in the Article
18-2 of the Enforcement Order as “Dangerous or Harmful
Substances to be notified their names, etc.”
Chromium oxide: The substances are defined in the Article 57-2 of the Act, and thechromium oxide is listed by No.142 in Appended Table9 in the
Article 18-2 of the Enforcement Order as “Dangerous or Harmful
Substances to be notified their names, etc.”
Silicon carbide: The substances are defined in the Article 57-2 of the Act, and thesilicon carbide is listed by No.336 in Appended Table9 in the Article
18-2 of the Enforcement Order as “Dangerous or Harmful
Substances to be notified their names, etc.”
Cobalt/Cobalt oxide: The substances are defined in the Article 57-2 of the Act, andthe cobalt/cobalt oxide is listed by No.172 in Appended Table9in the Article 18-2 of the Enforcement Order as “Dangerous orHarmful Substances to be notified their names, etc.”
Article 2, Paragraph 1, Items 2 and 5 of Ordinance on
Prevention of Hazards due to Specified Chemical Substance,
Specified chemical substance class 2, Management class 2.
When the content of cobalt and cobalt oxide is less than 1%,
the Ordinance on Prevention of Hazards due to Specified
Chemical Substance is not covered.
Nickel/Nickel oxide: The substances are defined in the Article 57-2 of the Act, andthe nickel/nickel oxide is listed by No.418 in Appended Table9 in
the Article 18-2 of the Enforcement Order as “Dangerous orHarmful Substances to be notified their names, etc.”

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17. Other Information
Other Hazardous Information
The following attention should be paid for dust which occur from Ceramic producing process.
 If a large amount of dust containing cobalt is inhaled, blood, heart, thyroid gland, andspleen disorders may result. (Ref.2)
 It is reported that repeated or prolonged contact with cobalt, nickel, nickel oxide,
chromium or zirconium oxide may affect skin, respiratory organs, heart, etc. (Ref.3 - 6)
 Inhaling high concentration dust of aluminum oxide may irritate the eyes and upper
respiratory tract. (Ref.4)
 Repeated or prolonged inhalation and exposure of aluminum oxide may cause effects on
the central nervous system. (Ref.4)
 Zirconium oxide can cause dizziness, increased perspiration, decreased capillary
resistance, increased temperature sensation and pain sensation, skin granulomas,
irritating symptoms of mild respiratory organs. (Ref.5)
 Magnesium oxide irritates the eyes and nose. Also, inhaling fumes may cause metal heat.
(Ref.4)
 For carcinogenicity of metallic ingredients of cemented carbide has the following
knowledge.
Cobalt metal

Nickel metal

Nickel oxide

Chromium metal
Ceramic fiber(Whisker)

ACGIH
IARC
Japan Society for
Occupational
HealthACGIH
IARC
Japan Society for
Occupational
HealthACGIH
IARC
Japan Society for
Occupational
HealthIARC
IARC

A3: Confirmed animal carcinogen withunknown relevance to humans.
2B: Possibly carcinogenic to humans.
2B: The substance has been determined to bepossibly carcinogenic to humans (withrelatively insufficient evidence).
A5: Not suspected as a human carcinogen.
2B: Possibly carcinogenic to humans.
2B: The substance has been determined to bepossibly carcinogenic to humans (withrelatively insufficient evidence).
A1: Confirmed carcinogenic to humans.
1: Proof to be carcinogenic to humans
2B: The substance has been determined to bepossibly carcinogenic to humans (withrelatively insufficient evidence).
3: Not classifiable as to its carcinogenicity tohumans.
2B: Possibly carcinogenic to humans.

*ACGIH：

American Conference of Governmental Industrial Hygienists Inc.

*IARC：

International Agency for Research on Cancer

Disclaimer
The contents of this SDS are based on material and information available as of today andmay be revised due to knowledge newly obtained. The values of concentration,
physical/chemical properties are not guaranteed. In addition, the precautions describedherein apply only to normal uses, and thus safety cannot be guaranteed.

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Reference URL
 Ministry of Economy, Trade and Industry：
http://www.meti.go.jp/
 Ministry of the Environment：
http://www.env.go.jp/
 Ministry of Health, Labour and Welfare：
http://www.mhlw.go.jp/
 Japan Industrial Safety and Health Assoc.：
http://www.jaish.gr.jp/
 International Agency for Research on Cancer：
http://monographs.iarc.fr/
 International Chemical Safety Card：
http://www.nihs.go.jp/ICSC/ National Institute of Technology and Evaluation：
http://www.safe.nite.go.jp/ghs/list.html
Reference Documents(1) IARC Monographs on the Evaluation of Carcinogenic Risks to Humans, vol.86 (2006).
(2) Food & Drug Research Laboratories, study No.8005B (4.11.84).
(3) T. Shirakawa et al., Chest. 95, 29 (1989).
(4) International Chemical Safety Cards (cobalt, chromium, nickel).
(5) The Guide to Chemical Hazards (edited by Japan Industrial Safety & Health
Association)(6) A. O. Bech et al., Brit. J. Ind., 19, 239 (1962).
Revision History
Rev.1023rd May, 2023

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