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Safety Data Sheet

ISTMO CRUDE OIL

HDS-PEMEX-PEP-SAC-1

Version No. 1.0 NOM-018-STPS-2015 DOF 09.10.2015

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1. Product Identifier

SAC Identifier : Istmo Crude Oil

Other Methods of Identification

: Istmo Crude Oil

Recommended use of the chemical and usage restrictions

: This is a medium crude oil (32° to 33° API), bitter (1.8% sulfur per weight) with good gasoline and intermediate distillates yield (diesel and jet fuel/ kerosene). The greatest economic value of this crude oil is obtained in refineries with FCC (Fluid Catalytic Cracker) units.

Supplier Data Name : Pemex Exploración y Producción. Deputy

Director of Commercial Operations Coordination, PEP. Management of Hydrocarbon Marketing and Contracts.

Address : Avenida Marina Nacional Número 329 C3, colonia Verónica Anzures, Delegación Miguel Hidalgo,11300, Mexico City, México.

Phone No. : INTERNAL: Micro from the Pemex network 49166, Nationwide landline number: 01 55-9689-6520, Overseas number 00 52 55-9689-6520, Radio Trunking: 50002, e-mail: [email protected], EXTERNAL: By calling any of the PEMEX switchboards and dialling extension no. 49166#. (Switchboard in Mexico City 01 55-1944-2500), nationwide number: 01 55-9689-6520

Additional Information

: URL: www.pemex.com

Emergency Number : Dial 911 from the Command Control, Communication and Computing centers (CCCC) of the SNSP that receives the first report of the incident, accident or

mailto:[email protected]

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2. Identification of the Hazard(s)

Hazards SAC Classification Indication of Danger

Physical

0

These are substances that are normally stable on their own, even in conditions such as fire. These include: Substances with an instant power density at 250ºC (482ºF) and lower than 0.01 W/ml. • Substances that do not react

with water.

• Substances that do not show an exothermal reaction at temperatures lower than or equal to 500ºC (932ºF) when tested by differential scanning calorimetry.

Healthcare Concerns

1

Slightly dangerous. Irritation or possible reversible injury. Light irritant, reversible within 7 days. Concentrations: Orally; LD50 rat: higher than 500 up to 5,000 mg/kg Skin; DL50 rabbit or rat: higher than 1,000 up to 5,000 mg/kg Inhaled; CL50 rat: higher than 20 up to 200 mg/l or higher than 2,000 to 10,000 ppm

Liquids and solids that can burn under almost any condition at room temperature. These include the following: • Liquids with an ignition

emergency and report to the CCAE.

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Hazards SAC Classification Indication of Danger

Environmental Concerns

3

point lower than 22.8ºC (73ºF) and a boiling point equal or higher than 37.8ºC (100ºF), as well as those liquids with an ignition point that is equal or higher than 22.8ºC (73ºF) and a boiling point lower than 37.8ºC (100ºF). • Substances that according to their physical form or surrounding environmental conditions could form explosive mixtures with the air and that are easily dispersed into the air. • Substances that burn extremely quickly, because they usually contain oxygen.

Elements of the SAC tags Pictogram

Warning Word : Danger

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Precautionary advice

General

: Not Applicable

Prevention : (H224) P210 Keep away from heat, hot surfaces, sparks, open flame and other sources of ignition. No smoking. (H224/H319/H340/H350/H361) P280 Wear gloves, protective clothing and protective equipment for the eyes and face. (H304) P270 Do not eat, drink or smoke while handling this product. (H304/H315) P264 Wash carefully after handling. (H315) P280 Wear protective gloves. (H332/H336) P261 Avoid breathing in the fumes. P271 Use only outdoors or in a well ventilated place. (H340/H350/H361) P201 Read the instructions prior to use. P202 Do not handle before having read and understood all safety precautions. (H373) P260 Do not breathe in the fumes. (H411) P273 Do not release into the environment.

Intervention

: (H224) P370 + P378 In case of fire: Use water in the form of a spray or fog, dry chemical powder, carbon dioxide or chemical foam. (H302/H304) P301 If ingested + 312 If swallowed, call the Toxicological Assistance and Information Center of the Mexican Social Security Institute. (H302) P330 Rinse the mouth out. (H304) P331 Do not induce vomiting. (H315) P302 + P352 In the event of contact with the skin, wash with plenty of water. P332 + P313 IN the event of skin rash, consult a physician. P362 + P364 Remove any contaminated clothing and wash before wearing it again. (H332 harmful if inhaled) P304 + P340 In the event of inhalation, transfer the person outside and place them in a position that facilitates breathing. (H340 genetic defects /H350 may cause cancer /H361 may be harmful to fertility or harm the fetus) P308 +P313 In the event of assumed or proven exposure,

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consult a physician. (H373 may damage internal organs) P314 Consult a physician if the affected person is in bad shape.

Storage : (H224) P403 Store in a well ventilated place. (H304/H340/H350/H361) P405 Keep locked.

Disposal : (H224/H302/H304/H340/H350/H361/H401/H373) P501 Dispose of the container and contents as hazardous materials.

Other dangers that do not appear in this classification

: Fumes of this product may create explosive mixtures with the air, they may travel to an ignition source and return in the form of open flame. Hydrogen sulfide is highly toxic and can be fatal if inhaled. H2S is an extremely flammable and toxic gas, and other hazardous vapors can evolve and accumulate in the headspace of storage tanks, transport containers and other closed containers. It can dull the sense of smell, so do not rely on odors as an indication of danger. Hydrogen sulfide has a variety of effects depending on the concentration in the air and the longitudinal exposure to this chemical compound. 0.02 ppm Olfactory threshold, smells like rotten eggs. 10 ppm irritation of the eyes and the airways, 100 ppm causes coughing, headaches, lightheadedness, ocular irritation, loss of the sense of smell within minutes. 200 ppm may cause lung edema after an exposure of over 20 to 30 minutes. 500 ppm loss of consistency after exposure, may cause respiratory arrest. Higher than 1000 ppm. Immediate loss of consciousness, may quickly lead to death, immediate cardiopulmonary reanimation may be necessary

Additional Information : Not Applicable

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3. Composition / Information about the components

Common Name : Istmo Crude Oil

Synonyms : Crude Oil, Rock Oil, Crude Petrol

Chemical Identity

Chemical Name CAS Number Concentration Other Specific

Markers

Crude Oil 8002-05-9 100% Not Applicable

Impurities and Stabilizing Additives

: Istmo Crude Oil presents a medium content of polluting agents, such as sulfur (1.867 % weight), insoluble in nC7 (4.57 % weight) and metals (Vanadium 102.16 ppm, NIckel 18.77 ppm), it does not contain any organic chlorine compounds (<1.0 ppm)


: Not Applicable

4. Decontamination and First Aid

Decontamination

: remove the affected person from the danger zone and into a well ventilated area. Perform CPR if needed, remove contaminated clothing under a jet of water.

Necessary first aid measures in case of

Inhalation : Keep the airways open and improve oxygenation by supplying external oxygen at a rate of 15 liters per

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minute.

Contact with the skin : Wash the skin with plenty of water for no less than 15 minutes. In the event of freezing, do NOT remove clothing; if there is an injury of the skin, wash the wound with plenty of water.

Contact with the eyes : Eye wash for 15 minutes.

Ingestion : Perform a gastric lavage; if there is spontaneous vomiting, lean the person forward to prevent inhalation of fluid into the lungs; administer activated charcoal.

Most important acute or chronic symptoms and effects

: Respiratory: Muscular contractions in the lower limbs, oppressive pain of the frontal sinuses, vertigo; benzenetic binge that manifests as mental confusion, hysterical symptoms (laughter, shouting and singing); fatigue paresthesia (numbness) of hands and feet; dysarthria (difficulty speaking); loss of consciousness and respiratory arrest.. Cutaneous: Dryness and redness of the skin; pain. Ocular: Mild conjunctivitis and tearing; severe conjunctivitis Ingestion: Abdominal pain, sore throat and vomiting.

Indications on immediate medical attention and specific treatment

: :Immediate medical attention through the application of first aid at the site and/or area; wound specific treatment is carried out in a hospital.

5. Fire-fighting measures

Appropriate fire-extinguishing media

: Use water fog, foam, dry chemical powder such as carbon dioxide (CO2) to extinguish flames, and sand or soil for small fires.

Unsuitable extinguishing media

: Do not use water jets on the burning substance, it could cause the water vapor to explode and spread the

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fire. Simultaneously using foam and water helps to prevent water from breaking up the foam.

Hazards Specific to the Chemical

: Combustion of these hazardous substances may include: A complex mixture of solid and liquid particles in the air and gases (smoke). Carbon monoxide, nitrogen oxides, sulfide oxides, and unidentified organic and inorganic components. Flammable vapors may be present even at temperatures that are below the flash point. Vapors are heavier than air, they spread over the ground, making remote ignition a possibility. Hydrogen sulfide (H2S) and toxic sulfur oxides can be released when the substance is heated. Do not rely on your sense of smell alone as a means of warning.

Special measures that firefighting teams should take into consideration

: Evacuate the area. If there is no leak or spill, use water spray to disperse water vapors and protect personnel or attempt to stop the leak. Prevent the runoff of the fire extinguishing water or dilution from being directed to streams, sewers or drinking water supply. Firefighters must wear standard protective equipment and self contained breathing apparatus (SCBA) within enclosed spaces. Use water mist to cool down any surfaces exposed to fire and to protect the personnel. Keep adjacent containers cool by spraying them with water. If possible, remove the containers from the danger zone if the fire cannot be extinguished, the appropriate course action is to evacuate the area immediately.

Additional notice : Not applicable

6. Measures to be taken in case of accidental spillage or leakage

Individual precautions, protective equipment and emergency procedures For non-emergency : For non-emergency services personnel.

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services personnel

Call the Emergency Coordination and Support Center in case of any emergencies related to industrial safety, environmental protection and physical safety in Pemex work centers, its Subsidiary Productive Companies and, where appropriate, Affiliate Companies, which is available 24/7 at the number 01 55 9686 6520 If you are calling from overseas, replace the prefix 01 with the international prefix + 52 for all the above cases. Evacuate the area. No smoking. Remain in the convective wind / keep your distance from the source. Make sure the area is adequately ventilated. Do not breathe in the fumes / spray from the chemical. Avoid contact with the skin, eyes and clothing.

For emergency services personnel

: For emergency services personnel. Isolation distances: Spill: 50 meters (150 feet). Fire: 800 meters (0.5 miles). Containers must be interconnected and grounded in order to perform the transfer of oil distillates. Use only anti-spark tools and equipment. Prevent oil distillates from running into confined spaces such as sewers, due to the possibility of explosion. Do not pour spilled substances into the sewer when washing out the area.

Environmental precautions : Spill on the ground. Spread absorbent powder evenly over the affected undergrowth and soil (so that hydrocarbon residues acquire a semi-solid consistency), so that the hydrocarbon does not flow out beyond the affected area (stabilization). Then initiate the work of extracting the portion of affected soil using hand tools. Use only anti-spark tools. Make sure that procedures and training for decontamination and emergency disposal are available on site.

Methods and materials for containing and cleaning spills or leaks

: Oceanic Spill. The first actions are aimed at containment and recovery, together with mechanical dispersion (jets of water or propellants). Chemical dispersion and/or burning on site are applied as an

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alternative response, provided they have been approved by the Unified Command through its Technical Advisory Committee. Containment and clean-up methods at sea must adhere to the National Contingency Plan to combat and control spills of hydrocarbons and other Hazardous Materials Potentially Dangerous to Mexican Oceanic Areas. The use of dispersing agents must be fully approved by the Secretariat of the Environment and Natural Resources (SEMARNAT), the Federal Commission for the Protection against Health Risks (COFEPRIS), the ASEA and other competent Federal Public Administration Units.

Additional notice : The measures recommended above are based on the most likely scenarios for this material. However, appropriate actions should be assessed on a case-by-case basis.

7. Handling and storage

Precautions for safe handling

: Perform the Occupational Safety Analysis (OSA) and/or obtain the Permit for High-Risk (PHRW), whenever applicable. Do not handle the crude oil without first having fully read and understood the safety instructions or established control measures. Make sure the area is adequately ventilated. Wear the mandatory personal protective equipment (see section 8). Avoid inhaling the fumes and contact with skin, eyes and clothing. (See section 8) Take the necessary precautions to avoid mixing this substance with incompatible materials (See section 10). Ensure control of the process by keeping the operating variables within safe limits (pressure, temperature, levels, etc.) to avoid leaks and spills.

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Keep away from heat, hot surfaces, sparks, open flames and any other source of ignition. Ensure that the equipment is properly connected to physical ground. The use of air monitoring alarms is required. Use anti-spark devices, tools and equipment or such tools that are intrinsically safe. Avoid small spills and leaks to prevent the danger of slipping. When establishing handling measures, consider that these materials may accumulate static charges, which can cause an electric spark (source of ignition). Personnel should not wear contact lenses when handling this product. Personnel should not eat, drink or smoke while handling this substance. Any contaminated leather goods, including footwear, cannot be decontaminated and must be treated as hazardous waste. Do not reuse. Wash thoroughly after handling.

Conditions for safe storage, including any incompatibilities

: Avoid storing this substance under extreme temperatures; Store in solid, closed, cold, dry, insulated containers, in well ventilated areas away from heat, sources of ignition and isolated from any incompatible products (listed in section 10). Store in containers with labels that include the dangers set out in section 2; Any containers filled with this substance should be stored separately from empty and partially empty containers. Storage in a warehouse: The tanks or drums used must be especially designed for this product. Bulk storage deposits should be encircled with a retaining wall. Place tanks away from heat and other sources of ignition. Tanks must be equipped with heating coils. Make sure that the heating coils are always covered with the product (no less than 15 cm). An electrostatic charge is generated during pumping. The electrostatic discharge may cause a fire. To reduce the danger, make sure that

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there is electrical continuity by grounding all equipment. Fumes and vapors present in the head space of the storage container may be at the explosive / flammable limit and therefore be flammable. Do not use pressure to empty the containers. Containers that have stored this product may contain residues, so they should not be pressurized, heated, cut, welded or exposed to flame or other sources of ignition; safe delivery of equipment, washing and vaporization must be carried out before performing any work on the inside of these containers.

Additional notice : Contaminated clothing and rags should be thoroughly clean and free of this product before storing or using them again.

8. Exposure controls / Personal protection

Control parameters

Occupational Exposure Limits

Chemical Name

Type ppm mg/m3 Observations Reference

Oil asphalt Fumes 0.5 Time weighted average of the inhaling fraction

Appendix I, Table I.1. Limit Values of Exposure to Pollutant Chemical Substances in the Working Environment set out in Mexican Official Standard NOM-010-

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STPS-2014, Pollutant chemical agents in the working environment- Recognition, evaluation and control.

Biological Exposure Index (BEI)

Chemical Name

Biological determinant or parameter

Time of Sampling

BEI Reference

Not Available Not Available Not Available Not Available Not Available

Appropriate engineering controls

: The level of protection and the types of controls that are required will vary depending on the conditions of potential exposure. Select controls based on the risk assessment of local circumstances. Appropriate measures to be applied include those related to: Using sealed systems whenever possible. Provide an appropriate ventilation to control airborne concentrations and maintain them below exposure guidelines / limits. It is recommended to ventilate the area locally. Eyewash and showers for emergency use. Pressurized water cannons are recommended for fire and bulk water supply systems. Follow good cleaning practices of the facilities. Define procedures for safe handling and maintenance of the facility’s controls. Make sure to properly select, test and maintain the equipment used to control exposure levels, such as personal protective equipment and local exhaust ventilation. Fume extraction systems should be designed in compliance with local regulations in effect regarding the emission limits for volatile substances.

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Individual protection measures, such as personal protective equipment (PPE)

Ocular/ facial protection

: Chemical splash proof glasses (chemical resistant glasses). If local risk assessment considers it appropriate, it may not be necessary to wear goggles to protect against chemical splashes and protective goggles may provide appropriate eye protection. Wear safety glasses with side shields or a face shield when performing work to respond to leaks or spills.

Skin protection

: Wear cotton clothes and a long-sleeved shirt. The use of a chemical resistant suit is recommended if prolonged contact with the spilled product is expected. A self-contained breathing apparatus should be used if approaching a fire in a confined space. Personnel fighting fires of this substance in confined spaces must use a self-contained breathing apparatus and wear a complete professional fire-fighting suit; the use of the latter provides only limited protection. Wear long cuff gloves, an apron and chemical and high temperature resistant boots (when there is a risk of splashing). Use rubber gloves when the contact is expected to be prolonged.

Respiratory Protection

: If engineering controls do not maintain air concentrations at an appropriate level to protect the workers’ health, select respiratory protection equipment for the specific conditions of use that meets local and current regulations. When air filter respirators are not sufficient (i.e., in air with very high concentrations of the substance, risk of oxygen deficiency, confined spaces) use a self-contained breathing apparatus. When air filter respirators offer sufficient protection, choose a suitable combination of mask and filter.

Thermal hazards : When handling hot materials, wear heat-resistant gloves, a safety helmet with a visor and heat-resistant

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rompers (with cuffs on gloves and boot-sleeves) and resistant boots, such as heat-resistant leather.

Additional Information : Do not wear contact lenses when handling this substance.

9. Physical and chemical properties

Physical state : Viscous liquid

Color : Brown/Black

Odor

: Hydrogen sulfide has a characteristic smell of rotten

eggs

Melting point / freezing

point

: Melting Point: -95 °C / Not available

Boiling point or initial

boiling point and boiling

range

: 71°C to 538 °C

Flammability : Flammable

Lower and upper explosion

limit / flammability limit

: Lower limit 0.6%, Upper limit 15% / Less than 16 ° C

(60 ° F) or greater than 93 ° C (200 ° C PMCC)

Flashpoint : Not available

Spontaneous ignition

temperature

: Not available. Fumes and vapors can reach remote fire

sources.

Decomposition temperature : Not available

pH : Essentially neutral.

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Kinematic viscosity : 14.21 cSt @ 25°C

Solubility : Insoluble in water

N-octanol / water partition

coefficient

: Not available

Vapor pressure : 6.89 lb/plg²

Density or relative density : 0.866 60/60 °F

Relative vapor density : Not available (Air: 1)

Characteristics of the

particles

: Not Available

10. Stability and reactivity

Reactivity : This substance can react violently with oxidizing agents such as perchlorates, peroxides, permanganates, chlorates, nitrates, chlorine, bromine, fluorine and nitric acid.

Chemical stability : Stable, avoid contact or storage with incompatible substances or sources of ignition.

Possibility of hazardous reactions

: Does not present polymerization.

Conditions to avoid : Avoid heat, flames, sources of ignition and storage with incompatible materials. Avoid contact with strong oxidants.

Incompatible materials : Avoid contact with nitrogen tetraoxide, oxidants such as chlorine, concentrated oxygen, sodium hypochlorite and calcium hypochlorite.

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Hazardous Decomposition Products

: This substance does not decompose at room temperature. Its combustion generates fumes and vapors, smoke, carbon monoxide, sulfur oxide, aldehydes.

11. Toxicological Information

Possible routes of access into the body

: Respiratory, cutaneous, ocular and by ingestion. Respiratory route: Coughing, ocular irritation, headache, dizziness, nausea, vertigo, vomiting, hyperexcitability, anosmia, tonic-clonic seizures, cardiac arrhythmia, loss of consciousness, acute pulmonary edema, coma and death. Cutaneous route: Dry skin, localized irritation at the site of exposure, redness, burning sensation, formation of boils and ulcers. Ocular route: Mild and severe conjunctivitis. Ingestion: Irritation of the mucous membranes, sore throat, abdominal pain, nausea, vomiting, risk of bronchorespiration and chemical bronchitis secondary to vomiting.

Acute toxicity : CAS 68410-00-4, May be caused by its hydrogen sulfide content.

Skin corrosion and irritation : Dry skin, localized irritation at the site of exposure, redness, burning sensation, formation of boils and ulcers. CAS 68410-00-4, LD50 (mg/kg) >5000.

Severe eye damage and ocular irritation

: Mild exposure: Mild conjunctivitis, inflammation of the eyelids, tearing. Moderate exposure: Severe conjunctivitis and decreased visual capacity. Severe exposure: Permanent decrease in visual capacity due to the injury to the conjunctiva and cornea.

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Respiratory or skin sensitization

: Coughing, ocular irritation, headache, dizziness, nausea, vertigo, vomiting, hyperexcitability, anosmia, tonic-clonic seizures, cardiac arrhythmia, loss of consciousness, acute pulmonary edema, coma and death.

Germ cell mutagenicity : CAS 68410-00-4, There is no evidence that links this substance to in-vitro genetic mutations or aberrations.

Carcinogenicity : CAS 68410-00-4, There is no evidence that links this substance to carcinogenicity.

Reproductive toxicity : CAS 68410-00-4, Toxicity to the Mother: NOAEL (No observation of adverse effect levels) = 502 mg/kg-day LOAEL (lower observed adverse effect levels) = 250 mg/kg-day Development Toxicity: NOAEL = 500 mg/kg-day (highest proven dosage).

Specific target organ toxicity - single exposure

: CAS 68410-00-4, There is no evidence that links this substance to specific systemic toxicity to target organs through a single exposure.

Specific target organ toxicity - repeated exposures

: Hematopoietic tissue (blood) .- Acute myeloblastic leukemia; Skin.- Injuries and squamous dermatitis; Respiratory tract.- Chronic lung dysfunction; Central and peripheral nervous system.- Loss of intellectual capacity, motor coordination, paresthesia of hands and feet with loss of muscular control. It can also cause liver or kidney damage. Dermal toxicity in repeated doses of NOAEL = 30 mg / kg-day and LOAEL = 125 mg / kg-day.

Aspiration toxicity hazard : Irritation of the mucous membranes, sore throat, abdominal pain, nausea, vomiting, risk of bronchoaspiration and chemical bronchitis secondary to vomiting. CAS 68410-00-4 May be caused by its Hydrogen Sulfide content.

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Symptoms related to physical, chemical and toxicological characteristics

: CAS 68410-00-4, this substance may cause euphoria, excitement, nausea, headache, dizziness, confusion, drowsiness, fatigue, irritation of the mucosa and dyspnea. Gastrointestinal, dermatological, hematological and respiratory alterations may occur, according to the duration of the exposure to the chemical.

Immediate or delayed effects as well as chronic effects produced by short or long term exposure

: CAS 68410-00-4, High concentrations may cause acute irritation of the skin, eyes, the digestive tract, the respiratory tract, nausea, vomiting, diarrhea and signs of depression of the central nervous system (e.g. headache, drowsiness, dizziness, disorientation and fatigue). Through chronic exposure, this substance can cause damage to organs or systems, such as damage to the central nervous system and the hepatic, hematic and splenic systems.

Numerical toxicity data, such as acute toxicity estimates

: CAS 68410-00-4 May be be caused by its Hydrogen Sulfide content, which has a wide range of effects depending on the concentration of particles in the air and the duration of exposure: 10 ppm: ocular and respiratory irritation, 100 ppm: coughing, headache, dizziness, nausea, eye irritation, loss of sense of smell within minutes. 200 ppm: possibility of developing a pulmonary edema. 500 ppm: loss of alertness with the possibility of respiratory arrest. 1000 ppm: immediate loss of alertness that can quickly lead to death

Additive effects (interactive) : CAS 68410-00-4, It contains varying concentrations of PAH that produce a phototoxic reaction when the contaminated skin is exposed to sunlight, causing severe skin problems, such as depigmentation and skin rashes.

Additional information : Warning. May contain Benzene, Specific Aromatic

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Hydrocarbons and Hydrogen Sulfide. Polycyclic aromatic hydrocarbons (PAHs) may be present in crude oil and fractionated in certain oil streams during the refining process. Fused ring PAHs are classified by the International Agency for Research on Cancer. Benzene is classified by the International Agency for Research on Cancer (IARC) as "carcinogen for humans (Group 1)". Benzene is associated with hematological abnormalities.

12. Ecotoxicological Information

Ecotoxicity : If released into the soil, it is absorbed and can

biodegrade under aerobic conditions. In water, the specific control runoff may be volatilized and the dilution into the water can cause pollution. Toxic for aquatic life forms, with lasting harmful effects.

Acute Chronic

Aquatic organisms : CL50 fish 1. 29000 - 80000 mg/l (Cyprinodon variegatus); 6000 - 14800 mg/l (Fundulus similis). CE50 Dafnia 1. < 0,26 mg/l (time of exposure: 48 h Daphnia magna). CL50 for B. plicatilis rotundiformis at 24 and 48 h of exposure to the Soluble Fraction of Crude Oil in Water (0.13 and 0.04 mg/L). LC50 values for B. plicatilis hepatotomus at 24 and 48 h exposure to the Soluble Fraction of Crude Oil in Water (0.23 and 0.05 mg/L).

: Not available

Terrestrial organisms : Concentrations: Oral; LD50 rat: greater than 500 to 5,000 mg / kg. Skin; LD50 rabbit or rat: greater than 1,000 to 5,000 mg / kg. Inhalation; LC50 rat: greater than 20 to 200 mg / l or greater than 2,000 to 10,000 in ppm.

: Not available

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Persistence and degradability

: Biodegradability. Slow biodegradation. 8 - 22%. Duration of the exposure: 28 d. Method: OECD TG 301D.

Bioaccumulative potential : As total aromatic hydrocarbons between 0.05 and 2.75 Ug / g in bivalve mollusks (Anadara tuberculosa).

Mobility in the ground : It depends on the characteristics of the soil (Water content and retention, Porosity, Density and Permeability, Clay content, Organic matter content and Groundwater depth) and environmental conditions (Temperature, Precipitation, Evapotranspiration).

Other adverse effects : Some Aromatic Polycyclic Hydrocarbons (PAH) are phototoxic, so certain petroleum-derived compounds can become increasingly toxic compounds after photooxidation.

13. Considerations for Disposal

The spilled substance must be collected in “contaminated” tanks for its reuse as an

alternative fuel or handled as hazardous waste. Solids contaminated with the substance

should be handled as hazardous waste and sent for co-processing or to an energy recovery

treatment plant. The container of the substance must be classified as hazardous waste.

14. Transport Information

UN Number : 3295

Official Designation of Transportation

: Liquid Hydrocarbons n.e.s.

Class(es) related to transport

: 3

Packing and/or packaging : III

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group, if applicable Environmental hazards : This material is harmful to aquatic life. It causes

damage to the food chain at basic levels. In the case of spills in aquatic environments, it is deposited on the sea floor, changing it to an impermeable state and preventing the growth of aquatic plants, thus affecting the underwater ecosystem.

Special precautions : Low-pressure tanker trucks must be fitted with a protective housing and manhole, a lower outlet valve and usually pressurized below 25 psi.

Transport in bulk according to Annex II of MARPOL 73/78 and the CIQ Code

: Hydrocarbons, type 3 vessel, pollution category Z.

15. Regulatory Information

NOM-018-STPS-2000, System for the identification and communication of hazards and risks

caused by the presence of hazardous chemicals in the workplace. Official Journal of the

Federation of Mexico. October 27, 2000.

NOM-010-STPS-2014, Chemical agents polluting the working environment- Recognition,

evaluation and control.

NOM-026-STPS-2008, Safety and Hygiene colors and labels, as well as identification of risks

due to fluids contained in the pipelines.

16. Additional information NFPA risk rating classification

:

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Date Prepared : September 18, 2018

Date Updated : First version

References : ATSDR. (1995). Toxicological Profile for Fuel Oils.

Atlanta. US Public Health Service. Environmental Protection Agency Hazard

Characterization Document. (2012). SCREENING-LEVEL HAZARD CHARACTERIZATION OF HIGH PRODUCTION VOLUME CHEMICALS. EPA.

HARDY’S, H. &. (2015). INDUSTRIAL TOXICOLOGY. NEW JERSEY: WILEY.

(1985). Hazardous Chemical Data. Volume II. Washington, D.C: COAST GUARD.

IPIECA. (2010). Guidance on the application of Globally Harmonized System (GHS) criteria to petroleum substances. EUA: IPIECA.

(2003). General Law for Integral Waste Prevention and Management. Mexico.

MB, K. (1993). Residential releases of number 2 fuel oil: a contributor to indoor air pollution. Am J Public Health.

(2016). NOM-016-CRE-2016. Specifications of Petroleum Product Quality. Energy Regulatory Commission. Mexico: DOF (Official Journal of the Federation).

(2000). NOM-018-STPS-2000, System for the identification and communication of hazards and risks caused by the presence of hazardous chemicals in the workplace. MEXICO: DOF (Official Journal of the Federation).

PEMEX. (2012). Compendium of Toxicology and Toxinology. MEXICO: PEMEX.

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: Not Applicable

Statement : The information contained in this document is considered to be true and correct as of the date of issuance of this chemical product's safety data sheet and it is only intended to inform of the possible physical, health or environmental hazards thereof. It should not be considered as a guarantee of any of the product specifications, nor does it imply the liability of the manufacturer for damages or injuries to the buyer or third parties for the appropriate or inappropriate use of this product, even when the indications expressed herein have been followed, as this document was prepared on the understanding that the buyer assumes the risks arising from the use of the product.

Glossary of Terms For the purposes of this document, the following definitions are established: Inhalation: The entry of a dangerous chemical substance or mixture of a liquid or solid into the trachea or lower respiratory tract directly by either the oral or nasal route, or indirectly by regurgitation (bronchoaspiration).

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Bioaccumulation: The net result of the absorption, transformation and elimination of a substance by an organism through all routes of exposure, that is, air, water, sediment /soil and food. Carcinogen: Chemical capable of altering the genetic material, its enzymatic repair systems, the genes or biomolecular factors that control cell division and proliferation. It is also known as a dangerous chemical or mixture of chemicals that induces cancer or increases its incidence. Hazard Category: The breakdown of the criteria applied in each hazard class. For example, there are five hazard categories to classify acute oral toxicity and four hazard categories for flammable liquids. These categories make it possible to compare the severity of hazards classified within the same class and should not be used to compare the overall hazard categories with each other. Hazard Class: The nature of the physical, health or environmental hazard. For example: flammable solid, carcinogenic and acute oral toxicity. Hazard communication: It is the clear, truthful and simple transmission to workers of updated information (both graphic and in writing) about a substance or mixture, by means of the signaling and/or safety data sheet, which includes the physical, chemical and toxicity characteristics of the substance; the preventative measures for its use and management that must be taken into account in order to foresee any effect or damage to the workers or the work center, as well as emergency response measures. Precautionary advice; caution advice: This refers to such phrase or pictogram or the two used together, which describes the recommended actions that should be taken to minimize or prevent the harmful effects of the workers' exposure to a hazardous chemical or mixture due to improper handling or storage. Contractor: The outsourced employer or worker who works temporarily in the work center, is directly or indirectly involved with the process, and who may add or increase existing risk factors due to his activity. Density: The ratio of mass per unit volume of a given substance. Label: A set of written and graphic elements related to the information on a hazardous chemical substance or mixture, which may be marked, printed, painted or adhered to the mobile containers filled with such a chemical substance.

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Safety Data Sheet, SDS: Contains information on the defining characteristics and properties of chemical substances or mixtures, as well as the necessary safety and hygiene conditions for their handling, which serves as the basis for the development of hazard and risk communication programs in the workplace. Chemical identity: The name by which a hazardous chemical or mixture is designated. It may be the name that appears in the nomenclature systems of the International Union of Pure and Applied Chemistry (IUPAC) or the Chemical Abstracts Service (CAS), or a technical name. Identification: Graphic representation that provides safety and health information, contained in the labeling or on the Safety Data Sheet (SDS), and which contains the name of the hazardous chemical or mixture, the safety color, the geometric shape of the signal, the hazard class and the hazard category, as well as the symbols indicating the personal protective equipment to be used, so as to offer a quick indication for handling the product. Substance Identification: The name or number on the label or on the Safety Data Sheet (SDS) of a hazardous chemical or mixture that allows for its identification during handling. Uses: in transport, consumption or in the workplace. Incompatibility: Such chemicals with high affinity to the substance whose mixture causes violent reactions, such as heating and emissions of flammable or toxic gases. Skin irritation: The formation of a reversible skin lesion as a result of contact with a substance. Ocular irritation: The appearance of ocular injuries as a result of contact of a chemical substance with the anterior surface of the eye, and which are completely reversible within twenty-one days after exposure. Lower flammability limit; lower explosiveness limit: The minimum concentration of any vapor or gas (% per volume of air), which ignites or explodes if there is a source of ignition present at room temperature. Upper flammability limit; superior explosiveness: The maximum concentration of any vapor or gas (% per volume of air), which ignites or explodes if there is a source of ignition present at room temperature.

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Handling: The use, transfer, storage or processing of a hazardous chemical or mixture in the workplace. Mixture: The heterogeneous blending or solution composed of two or more substances that do not react when in contact with each other. Mobility in soil: The potential of a hazardous chemical or the components of a mixture when released into the environment, to be displaced through the effect of natural forces into the groundwater or to a certain distance from the spill site. Mutagenicity: Mutation in cells, in organisms or both, capable of causing physical or functional changes in subsequent generations. n.s.e.: This acronym refers to Not Specified Elsewhere. These acronyms are used in generic names such as “Corrosive liquids n.s.e.“. This means that the chemical name of this corrosive product is not listed in the regulations and therefore, a generic name must be used to in the corresponding transport documents. Technical name: The designation of the hazardous chemical or mixture, other than the IUPAC or CAS name, generally used in commerce, in regulations or in codes to identify a hazardous chemical or mixture and which is recognized by the scientific community. The names of complex mixtures (fractions of oil or natural products), pesticides (ISO or ANSI systems), dyes (Color Index) and minerals are examples of technical names.

Warning word: The words "Danger" and "Attention" indicating the severity or relative degree of the hazard contained in the labeling to indicate the existence of a potential danger to the worker. Danger: The physical, chemical or toxic properties and characteristics of a hazardous chemical or mixture that may cause damage to the worker or the workplace. Persistence and degradability: The potential of the substance or components of the mixture to accumulate and degrade in the environment, by biodegradation or other processes, such as oxidation or hydrolysis. Molecular weight: The mass of a substance expressed in g / mol.

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Pictogram: Such graphic composition that contains a symbol inside a diamond with a red or black border, a white background, and which serves to communicate specific hazard information about a substance or mixture. Hydrogen potential, pH: The concentration of hydronium ions, which represents the acidity or alkalinity of a substance, within a scale of 0 to 14. Vapor pressure: The pressure exerted by a saturated vapor on its own liquid in a closed container, at 101.3 kPa and at 21 ° C. Supplier: Natural or legal person who produces, processes, distributes, markets, imports or exports the hazardous chemical (element, compound, mixture or alloy). Melting point: The temperature at which a solid substance changes its physical state and becomes a liquid. Flashpoint: The minimum temperature, corrected to the reference pressure of 101.3 kPa, at which the vapors of a liquid become inflamed when exposed to an ignition source under certain test conditions. Initial boiling point: The temperature at which the vapor pressure of a liquid is equal to the atmospheric pressure used as reference (101.3 kPa), that is to say, the temperature at which the first vapor bubbles appear in the liquid. Reactivity; instability: The potential of any dangerous chemical to release energy. Risk: The likelihood that the harmful effects of a hazardous chemical or mixture might harm workers or damage the workplace, due to chronic or acute exposure or the chemical’s capability to burn, explode, or corrode, among others. Risk = Danger x Exposure. Signaling or Labeling: The set of written and graphic elements that provides information on a dangerous chemical substance or mixture, which may be marked, printed, painted or attached to the tank, container, shelf or storage area of such chemical substance. Substance: Refers to any chemical element and its compounds in their natural state or as obtained by any production process, including the additives necessary to maintain its stability and impurities resulting from the process used, and excluding solvents that can be separated from the chemical without affecting the stability of the substance or modifying its composition.

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Hazardous chemicals or mixture: Such substances that, due to their physical and chemical properties and toxicological characteristics, may present physical hazards to the facilities, machinery and equipment, and to the health of people in the workplace. Boiling temperature: The temperature at which the vapor pressure of a liquid is equal to the atmospheric pressure. Toxicity: The ability of a hazardous chemical or mixture to cause damage or biological adverse effects to the health of a living organism. Vapor: The gaseous form of a substance or mixture released from its liquid or solid state. Evaporation Rate: The change of physical state of a substance from a liquid or a solid into steam over a certain amount of time. The value of this rate is based on that of the substance used for reference.

Acronyms or abbreviations LC50; Mean lethal concentration; lethal concentration 50: The statistically calculated amount of a substance, such as a gas, steam, mist or dust in a volume of air, at which 50% of test animals are expected to die upon exposure. When it comes to vapors or gases, it is expressed in ppm and when in the form of dusts or mists it is expressed in mg / l or in mg / m3. °C: Degrees Celsius. Unit of temperature of the international system. LD50; Average lethal dose; lethal dose 50: It is the amount of a substance (milligrams or grams per kilogram of weight of the test subject) obtained statistically and which, when administered orally or dermally, causes the death of 50% of a group of test animals. SDS: Safety Data Sheets IUPAC: The International Union of Pure and Applied Chemistry. kPa: kilopascal. Pressure unit

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CAS Number: Number assigned to a chemical substance by the “Chemical Abstract Service” of the United States of America. UN Number: Identification number for the transport of hazardous chemicals assigned by the United Nations Organization. ppm: Parts per million. Volume / volume ratio SGA; GHS: The Globally Harmonized System of Classification and Labeling of Chemicals, developed by the United Nations Organization.

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