fișe MSDS



1.1 Identification of the product.

Chemical name: Expandable Polystyrene
Designation or trade name: xxxxxxxxxxxxxxxxxx
Commonly used synonyms: EPS, Expandable Polystyrene Poly(phenylethene)

1.2 Use of the product:

Used mainly as raw material for the manufacturing of foamed thermal insulation and for an extensive range of cushioning and insulation packaging. The finished goods are produced with a molding process combined with the use of steam.

1.3 Identification of the company

Responsible for placing on the market:




1.4 Emergency calls

Emergency telephone number: (xxxxxxxxx) xxxxxxxxxxxxxxxxxxxxxxxx
Official advisory body telephone number:  (xxxxxxxxx) xxxxxxxxxxxxxxxxxxxxxxxx


– General description of the ingredients, their concentrations and hazards.

Product description Polystyrene (CAS N° 9003-53-6), containing pentane isomers as blowing agent.
Dangerous components/ constituents:

Component name

CAS number CE number


EC hazard

R phrase

Pentane (mixed isomers)



F+  F+,
Xn  Xn,
N  N

12, 51/53, 65, 66, 67




R18:       “In use, may form flammable/explosive vapour-air mixture”.
R52/53: “Harmful to aquatic organisms, may cause long-term adverse effects in the aquatic environment”.

The product is classified as dangerous according to Directive 1999/45/EC and following amendments (see section 15).

Most important physicochemical hazards: product releases pentane, a flammable hydrocarbon.

Adverse effects
Human health: Releases pentane which may cause skin and eyes irritation and  narcosis.
Environment: No specific hazards (see section 12)
Releases pentane, a volatile organic compound (VOC).

Symptoms relating to use and misuse: See section 4.

Other hazards: Not Available

Required immediate medical attention: See below first aid.

Symptoms and effects: Pentane vapors at increased concentrations are irritant and affect the nervous system.


Symptom: Vertigo, headache, dizziness, lack of coordination.
First aid: Bring the suffering person to fresh air. If recovery does not occur quickly, seek medical assistance.
Expected delayed effects: None.


Symptom: Irritation.
First aid: Wash skin with soap and water.
Expected delayed effects: None


Symptom: Irritation
First aid: Flush eyes with water for at least 15 minutes, holding the eyelids wide open. If recovery does not occur quickly, seek medical assistance.
Expected delayed effects: None


Symptom: Not Available
First aid: Not normally expected to present an ingestion hazard. If ingestion occurs, maintain an open breathing airway and seek medical assistance. Watch for an obstruction in the victim’s mouth. Remove if possible but do not force fingers or a hard object between victim’s teeth.
Expected delayed effects: Not Available

Specific and immediate treatments means to be available at the workplace: Not Available


Suitable extinguishing media: Water spray, dry chemical powder, carbon dioxide, foam.
Extinguishing media which must not be used for safety reasons: Water in a jet. 
Other information: Keep adjacent containers cool by spraying with water.
Special exposure hazards arising from the product, combustion products, evolved gases:
The product is not classified as flammable but will burn on contact with flame or exposure to high temperatures. Hazardous combustion products may include carbon monoxide and carbon dioxide.
Special protective equipment for fire-fighters: Full protective clothing and personal breathing apparatus.


Safety information: Vapors may form an explosive mixture with air. Vapors are heavier than air and may accumulate at ground level or in underground storage areas. Caution: spillages can be slippery.
Personal precautions: Remove ignition source. No smoking. Avoid sparks. Take precautionary measures against static discharge. Avoid standing on spilled product as loose beads cause a slip hazard.
Environmental precautions: Prevent further  leakage or spillage and prevent beads from entering drains.
Clean-up methods
Small spillage: Shovel up and place in a labeled, sealable container for subsequent safe disposal.
Large spillageTransfer to a labeled, sealable container for product recovery or safe disposal.

Other information: See Section 13 for information on disposal.


7.1 Handling

– Safety precautions
Local and general ventilation: Use localized gas extraction over the processing area
Measures to prevent aerosol, dust and fire: Avoid creation or accumulation of dusts. Extinguish any naked flames. Remove ignition sources. Avoid sparks. Do not smoke. Take precautionary measures against static discharges. Earth all equipment.
Measures to protect the environment:
 Avoid to release the unused product into the environment but dispose in accordance with the local – national regulations.
Specific requirements: Do not breathe vapour. Do not breathe fumes or vapours from heated product. Handling temperatures: Ambient.

7.2 Storage

Safety conditions
Specific engineering requirements for storage rooms or vessels:Storage rooms should be kept cool to reduce pentane release, and be equipped with a suitable ventilation system which will prevent accumulation of pentane. In addition safety gas detectors and notifiers should be used to alert on pentane/air explosive mixtures build up. The electrical system of the area should prevent sparks. Equipment to be installed in potentially explosive atmospheres should comply to the requirements of ATEX Directive 94/9/EC

Incompatible materials : Avoid storing or handling in conjunction with UN Class 1 explosives.

Storage conditions: To avoid the built-up of static electric charge, and also the formation of an explosive pentane-air mixture, containers should be fully emptied after processing. Reseal plastic liners. Keep containers tightly closed and in a cool, well-ventilated area. Keep away from direct sunlight and other sources of heat or ignition. Keep away from rain, moisture and freezing conditions. Bulk: Keep under inert gas. Open top tanks should be covered with an open rigid grid.
Product transfer:Take precautionary measures against static discharges. Earth all equipment. Ventilate freight containers for one hour before unloading. Line velocity should not exceed 8m/s during normal pumping operations. 
Special electrical equipment:
 Install spark free electrical equipment.
Prevention of static electricity: Take precautionary measures against static discharges.
Quantity limits : Not Available
Type of material used in the packaging/containers:
The product is usually put on the market in cardboard octagonal containers (octabins), in big bags or bulk. It is recommended not to double stack octabins.
Other suitable containers: steel drums.


7.3 Specific use(s)

Recommendations: Not Available


Engineering control measures: Use only in well ventilated areas.

8.1. Exposure limit values

Product ingredients(see also section 2):
The following are limits for the expanding agent and possible hazardous decomposition products (see section 10); during the conversion process (expansion) the product evolves pentane and traces of the monomer.

 Occupational Exposure limit values(*)







ACGIH 2002

20 ppm

40 ppm



ACGIH 2002

600 ppm

Note: *Or statutory limit values in the country concerned.
Recommended monitoring procedures: As required by the rules and regulations of each country.


Adopted exposure biological indices

Substance (biological indices)


Sampling time B.E.I. Note
Styrene (Urinary mandelic acid)

ACGIH 2002

End of shift 800 mg/g creatinine Ns
Prior to next shift 300 mg/g creatinine Ns
Styrene (Ac. phenylglyoxylic)

ACGIH 2002

End of shift 240 mg/g creatinine Ns
Prior to next shift 100 mg/g creatinine
Styrene in blood

ACGIH 2002

End of shift 0,55 mg/L Sq
Prior to next shift 0,02 mg/L Sq

B = background; Nq = non-quantitative; Ns = non-specific; Sq = Semi-quantitative.

Recommended monitoring procedures: As required by the rules and regulations of each country.

8.2. Exposure control

Occupational exposure controls

Respiratory protection: An approved dust mask should be worn if dust is generated during processing or handling..
Hand protection:
Type of glove material: suitable safety gloves.
Breakthrough time of the glove material : refer to gloves producer’s specifications.
 Eye protection: Wear safety goggles.
Skin protection: Specific hygiene measures: standard issue work clothes. Safety shoes or boots
Other : Wear suitable protective clothing. Antistatic safety shoes or antistatic boots.
Environmental exposure controls: EC and local provision on Volatile Organic Compounds (VOC), are to be fulfilled when they are applicable to the EPS industry.


Physical state: Solid
Form: Small spherical beads
Colour: White
Flash point: <-50°C (Pentane)
Explosion limit-upper: 7.8%(v/v) (Pentane)
Explosion limit-lower: 1.3%(v/v) (Pentane)
Auto-ignition temperature: 285°C (Pentane)
Density (beads) 1020-1050 kg/m3 at 20°C
Vapour density (air=1) 2,5 (Pentane)
Solubility in water: Insoluble
Solubility in other solvents: Soluble in aromatics, halogenated solvents and ketones.
Bulk density: circa 600 kg/m3 at 20 °C
Softening point: 70-75 °C (beads expand with evolution of pentane)
Partition coefficient: n-octanol /water: Not Available.


  • Conditions to avoid : Heat, flames and sparks. Strong direct sunlight for prolonged periods.
  • Materials to avoid : Not Available
  • Hazardous decomposition products

Styrene monomer, carbon monoxide (in case of fire or during hot wire cutting).
Release rate of pentane increases with temperature. Beads expand with rapid evolution of pentane at 70 75°C. The product decompose above 200°C.



Basis for assessment: Information given is based on knowledge of the ingredients and the toxicology of similar substances.

Dangerous  health effects from exposure to product: Effect of possible exposure to pentane. High exposures of pentane vapours can cause drowsiness and dizziness.

 see section 4.

Information on different routes of exposure

Acute toxicity-oral: LD50 expected to be above 2000mg/kg

Acute toxicity-dermal: LD50 expected to be above 2000mg/kg

Acute toxicity-inhalation. LC50 expected to be >5mg/l

Eye irritation: May cause irritation

Skin irritation: May cause irritation

Skin sensitisation: Not a skin sensitiser

Inhalation : the product may cause user’s exposure to pentane vapours.

Immediate, delayed and chronic effects from short and long-term exposure: None  reported in the published literature for the preparation.

Sensitisation, Carcinogenicity, Mutagenicity, Reproductive toxicity: None  reported in the published literature for the product.

Narcosis : exposure to high pentane doses may cause narcosis.


Basis for assessment: Information given is based on knowledge of the ingredients and the toxicology of similar substances.

12.1 Ecotoxicity:

• Air:
When released into the air, pentane is expected to be readily degraded by reaction with photo chemically produced hydroxyl radicals, with half-life between 1 and 10 days.
• Aquatic:
When released into water, pentane may biodegrade to a moderate extent, and is expected to quickly evaporate while is expected to have a half-life of less than 1 day. Pentane has an estimated bio concentration factor (BCF) of less than 100 and a log octanol-water partition coefficient greater than 3.0. Pentane is not expected to significantly bio accumulate.

• Soil (micro- and macro-organisms): Not Available

• Inhibitory effects on the activity of micro-organisms and impact on sewage treatment plants: Not Available

12.2 Mobility: Known or expected distribution to environmental compartments: Expandable polystyrene sinks in fresh water, may float or sink in sea water.

12.3 Degradability- Biodegradation: Not inherently biodegradable (polymer); readily biodegradable (pentane).

12.4 Bio accumulative potential: The product and its main components are not expected to bio accumulate .Other adverse effects:

  • Ozone depletion potential: pentane is not classified as an ozone depleting chemical.
  • Photochemical ozone creation potential, Global warning potential: N.A.
  • Sewage treatment: Practically non-toxic, EC50>100mg/l, to organisms in sewage treatment plants (estimated).
  • Other information: Small particles may have physical effects on aquatic and terrestrial organisms. Use according to good working practices and avoid enviromental release.


Description and information on safe handling of surplus or waste
Surplus, unused, old beads may still contain residual pentane. Therefore it has to be treated using all the safety measures in place for the fresh material. Refer to Section 7 before handling the product or containers.

Appropriate methods of disposal of preparation: Incineration, recycling, land filling : Recover or recycle if possible. Otherwise incineration with residence time of 2 seconds above 1200°C, wet scrubbing facilities or licensed landfill.

Appropriate methods of disposal of contaminated packaging: Refer to Section 7.  Remove all packaging for recovery or waste disposal.

Relevant European Community provisions relating to waste : EC Directive 94/62.

National or regional provisions in force : Implementation of EC regulations and directives. Local provisions.


UN Number (sea, road, air transport): 2211

UN Class/Packing Group: 9/III

UN Proper Shipping Name: POLYMERIC BEADS, EXPANDABLE, evolving flammable vapour

IMO Class/Packing Group: 9/III

IMO Hazard SymbolMiscellaneous dangerous substances and articles

IMO Marine Pollutant: No

IMO Proper Shipping name. POLYMERIC BEADS, EXPANDABLE, evolving flammable vapour

ADR/RID Class/Item: 9 / III

ADR/RID Hazard Symbol: Miscellaneous dangerous substances and articles

ADR/RID Kemler Number: 90/2211

ADR/RID Proper Shipping Name: POLYMERIC BEADS, EXPANDABLE, evolving flammable vapours

IATA/ICAO Class/Packing Group: 9/III

IATA/ICAO Hazard Symbol: Miscellaneous dangerous substances and articles

IATA/ICAO Proper shipping name: POLYMERIC BEADS, EXPANDABLE, evolving flammable vapor

Other information: Packages must be marked ”Keep away from sources of ignition.”

CEFIC TEC®:        90GM3-III

Special precautions:

Transport or conveyance within the production premises: refer to the internal procedure and to the information provide by this document (see section 7).
Transport or conveyance outside the production premises:Comply to the regulations of transport of dangerous goods and the producer’s recommendation on safe loading, transporting, unloading of the material.


Information on classification and labelling:

The product is classified according to EC Directive 1999/45 as R18 (see below), R52/53: “Harmful for aquatic organisms, may cause long term adverse effects in the aquatic environment”. The product contains Pentane (see section 2) which is embedded in the polymer beads and is released very slowly by the product under advised handling and storage conditions. Therefore the product is not to be regarded as harmful for the environment in the form in which it is placed on the market (EC Directive 1999/45 of 03.05.1999, art. 12 paragraph 2).

Information shown on the label:

Designation or trade name : xxxxxxxxxx  Expandable polystyrene beads

Company responsible for placing the preparation on the E.U. market

 (xxxxxxxxx) xxxxxxxxxxxxxxxxxxxxxxxx

Chemical name of the substance/s:  EXPANDABLE POLYSTYRENE  containing PENTANE

Hazard symbol/s : UN Class 9 miscellaneous hazard label

Indication/s of Hazard : UN Class 9 miscellaneous hazard label

Risk phrase/s (R) :
R18: In use, may form flammable/explosive vapour-air mixture.
R52/53:“Harmful to aquatic organisms, may cause long-term adverse
effects in the aquatic environment”

Safety advice (S) :
S3: „Keep in a cool place”.
S7/9: „Keep container tightly closed, in a well ventilated place.”
S16: „Keep away from sources of ignition – no smoking.”

National Relevant Regulations : See national specific regulation.


Information of importance for the health and safety of the user and the protection of the  environment:

Full text of any R phrases referred to under heading 2 and 3:

R12:      Extremely flammable.
R18:      In use, may form flammable/explosive vapour-air mixture.
R50/53:  Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic
R51/53: Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic
R52/53: Harmful to aquatic organisms, may cause long-term adverse effects in the aquatic
R65:      Harmful: may cause lung damage if swallowed.
R66:      Repeated exposure may cause skin dryness or cracking.
R67:      Vapours may cause drowsiness and dizziness.

Training advice:

Suitable training on safety in handling, storing and converting the product should be given to the employees based on all the existing information.
A DVD on EPS Fire Safety is available from Plastics Europe in 18 European languages.
Please contact your EPS  bead supplier for a copy.

Recommended restrictions on use:

The product is intended for professional use only.

Further information:

EINECS (EC): *ingredients listed
MITI (Japan): * ingredients listed
TSCA (USA): * ingredients listed
AICS (Australia): * ingredients listed
DSL (Canada): * ingredients listed
[* subject to specific check]

Disclaimer: Information provided is based on our current knowledge and is intended to describe the product for the purposes of health, safety and environmental requirements only. It should not therefore be construed as guaranteeing any specific property of the product.

1st edition Jan 1994
Revision date: 30 March 1999
Revision date: 15 April 2002
Revision date: 08 October 2003
Revision date: 15 May 2006
Revision date: 04 July 2007
Revision date: 13 March 2008
Revision date: 27 January 2009
Revision date: 16 June 2010