S-LAH58

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 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 Physical Pyrophoric solids Not classified 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 Organic peroxides Not applicable Corrosive to metals Classification not possible Acute toxicity(Oral) Category 5 Classification not possible Acute toxicity(Skin) Classification not possible Acute toxicity(Inhalation: Gas) Not applicable Acute toxicity(Inhalation: Vapour) Classification not possible Not applicable Acute toxicity(Inhalation: Dust) Classification not possible Acute toxicity(Inhalation: Mist) Classification not possible Not applicable Skin corrosion / Irritation Category 3 Classification not possible Serious eye damage / Eye irritation Category 2A-2B Category 2B Classification not possible Respiratory sensitization Classification not possible Skin sensitization Classification not possible Germ cell mutagenicity Classification not possible Not classified Carcinogenicity Classification not possible Category 1B Health Category 1A Category 3 (Respiratory Category 1 (Respiratory Reproductive toxicity Classification not possible Category 1B Classification not possible Category 1 (Heart) tract irritation) system) Specific target organ toxicity-Single Category 2 (Respiratory exposure system) Specific target organ toxicity-Repeated Classification not possible Category 1 (Respiratory exposure system) system, Kidney) - 115) SnO2 Ta2O5 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 classified Not applicable Not classified Self-reactive substances and mixtures Not applicable Pyrophoric liquids Not applicable Physical Pyrophoric solids Not classified Not applicable Not classified Self-heating substances and mixtures Not applicable Substances and mixtures which, in contact with water, emits flammable gases Not classified Not applicable Not classified Oxidizing liquids Not applicable Oxidizing solids Not classified Not applicable Not classified Organic peroxides Not applicable Corrosive to metals Classification not possible Acute toxicity(Oral) Not classified Category 4 Classification not possible Acute toxicity(Skin) Not applicable Acute toxicity(Inhalation: Gas) Not applicable Acute toxicity(Inhalation: Vapour) Classification not possible Acute toxicity(Inhalation: Dust) Not applicable Acute toxicity(Inhalation: Mist) Not applicable Skin corrosion / Irritation Not applicable Not classified Serious eye damage / Eye irritation Not classified Category 2B Classification not possible Respiratory sensitization Classification not possible Germ cell mutagenicity Not applicable Skin sensitization Classification not possible Carcinogenicity Not applicable Health Not applicable Category 3 (Respiratory Reproductive toxicity Classification not possible tract irritation) Specific target organ toxicity-Single exposure Specific target organ toxicity-Repeated Classification not possible exposure

Aspiration hazard

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

Signal word

Warning Danger - Warning