S-LAH92

SECTION 2: Hazards identification

GHS Classification Optical glasses are physically and chemically stable and are not hazardous. However, the following danger hazardousness is concerned during processing of optical glasses. ： When dust inhales during dry processing and melting, may cause chronic or cumulative health impairment.　And gas inhales during melting, may cause acute poisoning and chronic or cumulative health impairment including cancer.

Environmental effects

Pay attention to the concentrations of discharge density of gas during melting as they may damage the ecosystem.

2.1 Classification of the substance or mixture

115) B2O3 Sb2O3 SiO2 TiO2 Explosives Not applicable Flammable / Flammable gases Not applicable Flammable / Flammable aerosols Not applicable Combustion support / Oxidizing gases Not applicable Gases under pressure Not applicable Flammable liquids Not applicable Flammable solids Not classified Self-reactive substances and mixtures Not applicable Pyrophoric liquids Not applicable Pyrophoric solids Not classified Physical Self-heating substances and mixtures Not classified Substances and mixtures which, in contact with water, emits flammable gases Not classified Oxidizing liquids Not applicable Oxidizing solids Classification not possible Classification not possible Classification not possible Not classified Organic peroxides Not applicable Corrosive to metals Classification not possible Classification not possible Classification not possible Classification not possible Acute toxicity(Oral) Category 5 Classification not possible Not classified Acute toxicity(Skin) Classification not possible Classification not possible Classification not possible Not classified Acute toxicity(Inhalation: Gas) Not applicable Acute toxicity(Inhalation: Vapour) Classification not possible Classification not possible Not applicable Classification not possible Acute toxicity(Inhalation: Dust) Classification not possible Classification not possible Classification not possible Not classified Acute toxicity(Inhalation: Mist) Classification not possible Not applicable Skin corrosion / Irritation Category 3 Classification not possible Classification not possible Not classified Serious eye damage / Eye irritation Category 2A-2B Category 2B Classification not possible Category 2B Respiratory sensitization Classification not possible Classification not possible Classification not possible Classification not possible Germ cell mutagenicity Classification not possible Not classified Skin sensitization Classification not possible Classification not possible Classification not possible Classification not possible Carcinogenicity Classification not possible Category 1B Category 1A Health Category 2 Category 3 (Respiratory Category 1 (Respiratory Reproductive toxicity Classification not possible Category 1B Classification not possible Classification not possible tract irritation) Category 1 (Heart) system) Classification not possible Specific target organ toxicity-Single Category 2 (Respiratory exposure system) Specific target organ toxicity-Repeated Classification not possible Category 1 (Respiratory Classification not possible exposure system) system, Kidney) - 115) WO3 Y2O3 ZnO ZrO2 Explosives Not applicable Flammable / Flammable gases Not applicable Flammable / Flammable aerosols Not applicable Combustion support / Oxidizing gases Not applicable Gases under pressure Not applicable Flammable liquids Not applicable Flammable solids Not applicable Not classified Self-reactive substances and mixtures Not applicable Pyrophoric liquids Not applicable Pyrophoric solids Not applicable Not classified Physical Self-heating substances and mixtures Not applicable Not classified Not applicable Substances and mixtures which, in contact with water, emits flammable gases Not applicable Not classified Oxidizing liquids Not applicable Oxidizing solids Not applicable Classification not possible Not classified Organic peroxides Not applicable Corrosive to metals Classification not possible Classification not possible Classification not possible Classification not possible Acute toxicity(Oral) Category 4 Not applicable Not classified Classification not possible Acute toxicity(Skin) Not applicable Classification not possible Not applicable Acute toxicity(Inhalation: Gas) Not applicable Acute toxicity(Inhalation: Vapour) Classification not possible Classification not possible Classification not possible Acute toxicity(Inhalation: Dust) Not applicable Not classified Not applicable Acute toxicity(Inhalation: Mist) Not applicable Skin corrosion / Irritation Not applicable Not classified Serious eye damage / Eye irritation Classification not possible Classification not possible Not classified Classification not possible Respiratory sensitization Classification not possible Classification not possible Classification not possible Classification not possible Skin sensitization Classification not possible Classification not possible Not classified Classification not possible Germ cell mutagenicity Not applicable Classification not possible Not applicable Carcinogenicity Not applicable Not classified Health Not applicable Category 1 Category 3 (Respiratory Reproductive toxicity Classification not possible Classification not possible Category 2 Classification not possible (Kidneys,Systemic toxicity) tract irritation) Specific target organ toxicity-Single exposure Specific target organ toxicity-Repeated Classification not possible exposure

Aspiration hazard

Classification not possible Classification not possible Classification not possible Classification not possible Environmental Hazardous to the aquatic environment (Acute) Not classified Category 3 Classification not possible Classification not possible Hazardous to the aquatic environment (Chronic) Not classified Category 3 Classification not possible Category 4 Classification not possible Classification not possible Classification not possible Classification not possible Environmental Hazardous to the aquatic environment (Acute) Classification not possible Classification not possible Category 1 Classification not possible Hazardous to the aquatic environment (Chronic) Classification not possible Classification not possible Category 1 Classification not possible

Signal word

Warning Danger Warning Warning - Danger Warning