Methane

2.1 Classification of the substance or mixture

Flammable gases Class 1 Oxidizing gas : Not classified Gas under pressure : Compressed gas Acute toxicity (Oral) Classification not possible Acute toxicity (Dermal) Classification not possible Acute toxicity (Inhalation, : Not classified gas) Skin corrosivity/irritant : Not classified Severe eye damages/eye : Not classified irritant Respiratory sensitization : Not applicable Skin sensitization : Not applicable Germ-cell mutagenicity : Not applicable Carcinogenicity : Not applicable Reproductive toxicity : Not applicable Specific target organ : Not classified toxicity/systemic toxicity (Single exposure) Specific target organ toxicity : Not classified /systemic toxicity (Repeated exposure)

Aspiration hazard

Classification not possible Hazardous to the aquatic : Not applicable environment, acute hazard Hazardous to the aquatic : Not applicable environment, long-term

Signal word

Danger Hazard and toxicity : May explode when heated. Highly combustible, flammable gas. Other hazard and : If gas blowouts from the high-pressure gas container and enters the eyes, toxicity there is a risk of eye damage or loss of vision. Precautionary : ［Preventive measures］

Hazard statements

Keep away from ignition sources such as heat, sparks, open flames, high temperature ones. No smoking. ［First-aid measures］ Leaky gas fire: Do not extinguish unless leakage is safely stopped. Eliminate ignition sources if safe to deal with. If inhaled: If breathing is difficult, move air to a fresh place and rest in an easy-to-breathe posture. In case of symptoms related to breathing, call a doctor.

Storage

Handle in accordance with the High Pressure Gas Safety Act. Storage of containers should be done in a well-ventilated area at 40 ° C or less without direct sunlight and without fire. Close the container valve, protect it with cap, lock it and keep it safe.

Disposal

When disposing of the content, discharge it little by little in a place with good ventilation with no flame and inflammable material around it, to avoid danger. Dispose of this CRM in accordance with applicable legislation and local government ordinance. Entrust disposal of this CRM to a professional waste disposal company licensed by the prefectural governor. Inside Japan, return the cylinder of this CRM to the supplier when it is no longer needed or exceeds its shelf life. Hazardous and toxic properties not specified in the above are not subject to the classification or not classifiable.