COMETHCAL 100/14

Hazard statements (CLP)

H220, H270, H280, H331, H360, H372

Code

Statements

H220

Extremely flammable gas

2.1 Classification of the substance or mixture

Classification under the Globally Harmonized System of classification and labelling of chemicals (GHS). Emergency Colour: None Overview: Odour: None Taste: None Physical State: Compressed Gas Form: Gas under pressure Main Hazards: All cylinders are portable gas containers and must always be regarded as pressure vessels. - The carbon monoxide component of the above gas standards is a chemical asphyxiant. - Although the methane component of these gas mixtures will burn when ignited by a flame, the methane will not add significantly to the fire. - Oxygen is non-flammable, but readily supports combustion. Never permit oil, grease or other readily combustible substance to come into contact with high concentrations of oxygen. - Nitrogen does not support life. It can act as a simple asphyxiant by diluting the concentration of oxygen in air below the levels necessary to support life. - All cylinders are transportable gas containers. Adverse Carbon monoxide: extended periods may result in dizziness or unconsciousness and may lead to death.

Potential health effects

Concentrations in excess of 50 ppm carbon monoxide will produce symptoms of poisoning if breathed for a sufficiently long time. Methane: It is a physiologically inert, except when it lowers the partial pressure of oxygen in the air enough to cause systemic effects due to oxygen-deficiency. Oxygen: Central nervous system toxicity including dizziness, convulsions and loss of consciousness can occur after only 2-3 hours of exposure to pure oxygen at 2 or more atmospheres. Retrosternal soreness, associated with coughing and breathing difficulties, made worse by smoking and exposure to cold air can occur after breathing pure oxygen at atmospheric pressure for several hours. Nitrogen: Excessive inhalation at high concentrations can result in dizziness, nausea, vomiting, loss of consciousness and death. Chemical Carbon monoxide: No known hazards. Methane: There are no hazardous products formed when methane burns in air. Oxygen: Is non-flammable, but strongly supports combustion. Nitrogen: Is relatively inert to most materials under ordinary conditions. It becomes more reactive at elevated temperatures, and combines with hydrogen, oxygen and some metals. Biological None. Vapour - Carbon monoxide combines with the Inhalation: haemoglobin in the blood to form carboxyhaemoglobin, which is unable to transport oxygen. The symptoms of carbon monoxide poisoning are largely due to anoxia. - Methane in high concentrations may cause asphyxiation. Symptoms may include loss of mobility/consciousness. - Oxygen is a local irritant to mucous membranes and, with extended continued exposure, can be destructive to lung tissue. - Nitrogen acts as a simple asphyxiant death may result from errors in judgement, confusion, or loss of consciousness which prevents self-rescue. At low oxygen concentrations, unconsciousness and death may occur in seconds without warning. Eye Contact: No known effect. Skin Contact: No known effect. Ingestion: (See “Vapour Inhalation” above). GHS Carbon monoxide:

Classifications

Flammable gas (Category 1). - Acute toxicity, Inhalation gas (Category 3). - Toxic to reproduction (Category 1). - Specific Target Organ Toxicity, Repeated Exposure (Category 1). Methane: - Flammable gas (Category 1). Oxygen: - Oxidizing gas (Category 1). Nitrogen: Non-flammable gas (Category 3) GHS

Signal word

Danger

Hazard statements

Carbon monoxide: H220 - Extremely flammable gas. H280 - Contains gas under pressure; may explode if heated. H331 - Toxic if inhaled. H360 - May damage the unborn child. H372 - Causes damage to organs through prolonged or repeated exposure. Methane: H220 - Extremely flammable gas. H280 - Contains gas under pressure; may explode if heated. Oxygen: H270 - May cause or intensify fire; oxidizer. H280 - Contains gas under pressure; may explode if heated. Nitrogen: H280 - Contains gas under pressure; may explode if heated. GHS Carbon monoxide:

Precautionary statements

Prevention: P201+P202: Do not handle until all safety precautions have been read and understood. P210: Keep away from heat/sparks/open flames/hot surfaces. No smoking. P260+P261: Avoid breathing dust/fume/gas/mist/ vapours/spray. P264: If on skin (or hair) remove immediately all contaminated clothing. Rinse skin with water/shower. P270: Do not eat, drink or smoke when using this product. P271: Use only outdoors or in a well- ventilated area. P280: Wear protective gloves/protective clothing/eye protection/face protection.

Response

P304+P340 IF INHALED Remove person to fresh air and keep comfortable for breathing. P308 + P313: IF exposed or concerned: Get medical advice/attention. P311: Call manufacturer/supplier or the competent authority to specify the appropriate source of emergency medical advice. P314: Get medical advice/attention if you feel unwell. P321: Specific treatment (See "First Aid Measures" below). P377: Leaking gas fire. Do not extinguish unless leak can be stopped safely. P381: Eliminate all ignition sources if safe to do so. P377: Leaking gas fire. Do not extinguish unless leak can be stopped safely. P381: Eliminate all ignition sources if safe to do so. P307+P376 In case of fire Stop leak if safe to do so.

Storage

P410+P403: Protect from sunlight. Store in a well- ventilated place. P403+P233: Store in a well-ventilated place. Keep container tightly closed. P405: Store locked up. P410+P403: Protect from sunlight. Store in a well- ventilated place. Oxygen: P410+P403: Protect from sunlight. Store in a well- ventilated place. Nitrogen: P410+P403: Protect from sunlight. Store in a well- ventilated place.

Disposal

P501: Dispose of content/container in accordance with local/regional/national/international regulations. Methane:

Prevention

P210: Keep away from heat/sparks/open flames/hot surfaces. No smoking. P220: Keep/Store away from combustible materials. Manufacturer/supplier or the competent authority to specify other incompatible materials. P244: Keep valves and fittings free from oil and grease.

Other hazards

Carbon monoxide that do not - Chemical asphyxiant. result in - Exposure to low concentrations for