Cemented Carbide (include the coated or surface treated Cemented Carbide)

2.1 Classification of the substance or mixture

Some data (such as the burning rate test data, etc.) for the dust, fume or vapor which occur from cemented carbide producing process are unavailable. Therefore, they are not be classified by GHS. In here, GHS classification of the each metallic ingredients (cobalt, nickel and chromium) for composing the cemented carbide can be disclosed. In addition, other hazards and harmful 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 cemented carbide.)

Health hazards

Respiratory sensitization Category1 ・Skin sensitization Category1 ・Carcinogenicity Category2 ・Reproductive toxicity Category2 ・Specific target organ toxicity Category3 (Single exposure) (Respiratory tract irritation) ・Specific target organ toxicity Category1 (Repeated exposure) (Respiratory) Environmental ・Hazardous to the aquatic Category4 ・Respiratory sensitization Category1 ・Skin sensitization Category1 ・Carcinogenicity Category2 ・Specific target organ toxicity Category1 (Single exposure) (Respiratory tract irritation) ・Specific target organ toxicity Category1 (Repeated exposure) (Respiratory) Environmental ・Hazardous to the aquatic Category4 ・Serious eye damage Category2B ・Respiratory sensitization Category1 ・Skin sensitization Category1 ・Germ cell mutagenicity Category2 ・Specific target organ toxicity Category2 (Single exposure) (Respiratory tract irritation) ・Specific target organ toxicity Category3 (Repeated exposure) (Respiratory)

Environmental hazards

GHS classification for the hazards of nickel alone in below, (When nickel is included as ingredients of cemented carbide.) GHS classification for the hazards of chromium alone in below, (When chromium is included as ingredients of cemented carbide.)

Signal word

Danger

Hazard statements

Risk of causing allergies, asthma or breathing difficulties if inhaled. ･Risk of causing an allergic skin reaction. ･May cause cancer. ･May cause adverse effects on fertility or the unborn child. ･Risk of respiratory irritation. ･Cause of respiratory failure due to long-term or repetitive exposure.

Precautionary statements

Prevention】 ･Obtain safety instructions* before use. ･Do not handle until all safety precautions have been read and understood. ･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.

Response

If inhaled, move to fresh air and take a rest with posture easy to breathe. ･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 and soap. ･If skin irritation occurs, contact a doctor and get medical advice/attention. ･If exposed or concerned, get medical advice/attention.

Disposal

Dispose of contents/container to an approved waste disposal plant under the laws. *For safety instructions, refer to the Japan Cutting & Wear-resistant Tool Association website（http://www.jta-tool.jp/）.