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GASCO. <br /> MATERIAL SAFETY DATA SHEET - CALIBRATION CHECK GAS <br /> MSDS NO: 248 Version:3 Date: August, 2010 <br /> 1. Chemical Product and Company Identification <br /> Gasco Affiliates, LLC <br /> 320 Scarlett Blvd. <br /> Oldsmar, FL 34677 <br /> TELEPHONE NUMBER: (800)910-0051 24-HOUR EMERGENCY NUMBER: 1-800-424-9300 <br /> FAX NUMBER: (866)755-8920 <br /> E-MAIL: info@gascogas.com <br /> PRODUCT NAME: ISOBUTYLENE(1 PPM—0.9%)IN AIR <br /> CHEMICAL NAME: Isobutylene in air <br /> COMMON NAMES/SYNONYMS: None <br /> TDG(Canada)CLASSIFICATION: 2.2 <br /> WHIMIS CLASSIFICATION:A <br /> 2. COMPOSITION/INFORMATION ON INGREDIENTS <br /> INGREDIENT %VOLUME PEL-OSHA LV-ACGIH LDso or LC50 <br /> Route/Species <br /> Isobutylene 0.0001-0.9 N/A N/A N/A <br /> FORMULA:C4H8 <br /> Air 99.0 to N/A N/A N/A <br /> FORMULA: Mixture 99.9999 <br /> 3. HAZARDS IDENTIFICATION <br /> EMERGENCY OVERVIEW <br /> Release of this product may produce oxygen-deficient atmospheres(especially in confined spaces or other poorly ventilated <br /> environments); individuals in such atmospheres may be asphyxiated. Isobutylene may cause drowsiness and other central nervous <br /> system effects in high concentrations; however,due to the low concentration of this gas mixture,this is unlikely to occur. <br /> ROUTE OF ENTRY: <br /> Skin Contact Skin Absorption Eye Contact Inhalation Ingestion <br /> No No No Yes No <br /> HEALTH EFFECTS: <br /> Exposure Limits Irritant Sensitization Reproductive Hazard Mutagen <br /> Yes No No No No <br /> Carcinogenicity:--NTP: No IARC: No OSHA: No <br /> EYE EFFECTS: <br /> N/A. <br /> SKIN EFFECTS: <br /> N/A. <br /> 1 <br />