International Chemical Safety Cards PORTLAND CEMENT ICSC: 1425 Hydraulic cement ICSC #    1425 CAS #     65997-15-1 RTECS # VV8770000 October 17, 2001 Peer reviewe TYPES OF HAZARD/ EXPOSURE ACUTE HAZARDS/ SYMPTOMS PREVENTION FIRST AID/ FIRE FIGHTING FIRE Not combustible. In case of fire in the surroundings: use appropriate extinguishing media. EXPLOSION EXPOSURE STRICT HYGIENE!  •INHALATION Cough. Sore throat. Avoid inhalation of dust . Fresh air, rest.  •SKIN Dry skin. Redness. See Notes. Protective gloves. Protective clothing. Rinse and then wash skin with water and soap.  •EYES Redness. Pain. Severe deep burns. Safety goggles. First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.  •INGESTION Burning sensation. Abdominal pain. Do not eat, drink, or smoke during work. Do NOT induce vomiting. Refer for medical attention. SPILLAGE DISPOSAL STORAGE PACKAGING & LABELLING Sweep spilled substance into containers. Do NOT wash away into sewer. (Extra personal protection: P1 filter respirator for inert particles.) Dry. Well closed. Separated from strong acids. R: S: SEE IMPORTANT INFORMATION ON BACK ICSC: 1425 Prepared in the context of cooperation between the International Programme on Chemical Safety & the Commission of the European Communities (C) IPCS CEC 1994. No modifications to the International version have been made except to add the OSHA PELs, NIOSH RELs and NIOSH IDLH values.

International Chemical Safety Cards PORTLAND CEMENT ICSC: 1425 I M P O R T A N T D A T A PHYSICAL STATE; APPEARANCE: LIGHT GREY OR WHITE POWDER . PHYSICAL DANGERS: CHEMICAL DANGERS: Reacts with acids , aluminium metals and ammonium salts. Reacts slowly with water forming hardened hydrated compounds, releasing heat and producing a strong alkaline solution. OCCUPATIONAL EXPOSURE LIMITS: TLV: (particulate matter containing no asbestos and <1% crystalline silica) 10 mg/m³ (ACGIH 2001). MAK: I, 5 mg/m³ (DFG 2000). ROUTES OF EXPOSURE: The substance can be absorbed into the body by inhalation. INHALATION RISK: A nuisance-causing concentration of airborne particles can be reached quickly when dispersed. EFFECTS OF SHORT-TERM EXPOSURE: The substance is irritating to the skin and the respiratory tract . The substance is corrosive to the eyes. EFFECTS OF LONG-TERM OR REPEATED EXPOSURE: Repeated or prolonged contact with skin may cause dermatitis. Repeated or prolonged contact may cause skin sensitization. PHYSICAL PROPERTIES Melting point: >1000°C Density: 2.7-3.2 g/cm3 Solubility in water: reaction ENVIRONMENTAL DATA N O T E S The product is primarily a mixture of calcium silicates, aluminates, ferrites and calcium sulfate. An added stabilizer or inhibitor can influence the toxicological properties of this substance, consult an expert. Sensitization observed with cement is mainly due to the presence of hexavalent chromium. Some Portland cements may be free of hexavalent chromium. In the presence of moisture, skin burns may occur 12 to 48 hours after exposure; there may be no pain at the time of exposure. ADDITIONAL INFORMATION ICSC: 1425 PORTLAND CEMENT (C) IPCS, CEC, 1994

IMPORTANT LEGAL NOTICE: Neither NIOSH, the CEC or the IPCS nor any person acting on behalf of NIOSH, the CEC or the IPCS is responsible for the use which might be made of this information. This card contains the collective views of the IPCS Peer Review Committee and may not reflect in all cases all the detailed requirements included in national legislation on the subject. The user should verify compliance of the cards with the relevant legislation in the country of use. The only modifications made to produce the U.S. version is inclusion of the OSHA PELs, NIOSH RELs and NIOSH IDLH values.