MATERIAL SAFETY DATA SHEET



  SECTION 1- CHEMICAL PRODUCT AND COMPANY INDENTIFICATION







PRODUCT NAME: Kensington Duster II Compressed Gas Duster (X91504D)



SUPPLIER:             KENSINGTON TECHNOLOGY GROUP

                      333 Twin Dolphin

                      Redwood Shores, CA 94065



                      FOR MEDICAL OR FIRST AID EMERGENCY CALL INFOTRAC

                       1-800-535-5053 or 1-352-323-3500

                      24 HOURS PER DAY; 7 DAYS PER WEEK





MANUFACTURER: EMC Packaging Inc.

              550 James Street

              Lakewood, NJ 08701







       SECTION 2 � COMPOSITION/INFORMATION ON INGREDIENTS



ITEM -------------- CHEMICAL NAME -------------- CAS NUMBER --------------WT/WT % LESS THAN



 01           ETHANE, 1, 1-DIFLUORO                   75-37-6               100.0%



                                            EXPOSURE LIMITS



                   ACGIH                              OSHA                COMPANY

ITEM        TLV-TWA     TLV-STEL               PEL-TWA    PEL-CEILING     TLV-TWA    SKIN



 01         NO INFO           NO INFO          NO INFO          NO INFO   1000 ppm    NO



 (See Section 16 for abbreviation legend)

                 SECTION 3 � HAZARDS INDENTIFICATION





*** EMERGENCY OVERVIEW***: KEEP FROM REACH OF CHILDREN. DO NOT PUNCTURE,

INCINERATE, OR PLACE AEROSOL PRODUCT CONTAINERS IN COMPACTORS. CONTAINERS

OF THIS MATERIAL MAY BE HAZARDOUS WHEN EMPTIED SINCE CONTAINERS RETAIN

PRODUCT RESIDUES (VAPOR, LIQUID, AND/OR SOLID). ALL HAZARD PRECAUTIONS GIVEN

MUST BE OBSERVED. DO NOT FLAME CUT, BRAZE, OR USE WELDING TORCH.

INTENTIONAL MISUSE BY DELIBERATELY CONCENTRATING AND INHALING THIS

PRODUCT MAY BE HARMFUL OR FATAL.



EFFECTS OF OVEREXPOSURE � EYE CONTACT: MAY CAUSE IRRITATION, REDNESS,

TEA RING, BLURRED VISION.



EFFECTS OF OVEREXPOSURE � SKIN CONTACT: CONTACT WITH LIQUID FROM THIS

PRODUCT MAY CAUSE FROSTBITE. PROLONGED OR REPEATED CONTACT CAN CAUSE

MODERATE IRRITATION DEFATTING, DERMATITIS.



EFFECTS OF OVEREXPOSURE � INHALATION: EXCESSIVE INHALATION OF VAPORS CAN

CAUSE NASAL AND RESPIRATORY IRRITATION, DIZZINESS, WEAKNESS, FATIGUE,

NAUSEA, HEADACHE, POSSIBLE UNCONSCIOUSNESS, AND EVEN ASPHYXIATION.

POSSIBLE CARDIAC ARRHYTHMIAS AT HIGH CONCENTRATIONS



EFFECTS OF OVEREXPOSURE � INGESTION: THIS IS NOT AN ANTICIPATED ROUTE OF

ENTRY.



EFFECTS OF OVEREXPOSURE � CHRONIC HAZARDS: No Information.



PRIMARY ROUTE (S) OF ENTRY: SKIN CONTACT, INHALATION, EYE CONTACT







                     SECTION 4 � FIRST AID MEASURES





FIRST AID � EYE CONTACT: FLUSH WITH LARGE AMOUNTS OF WATER, LIFTING UPPER

AND LOWER LIDS OCCASIONALLY, GET MEDICAL ATTENTION.



FIRST AID � SKIN CONTACT: FLUSH THOROUGHLY WITH WATER TO WARM SKIN, TREAT

FOR FROSTBITE IF NECESSARY.



FIRST AID � INHALATION: REMOVE INDIVIDUAL TO FRESH AIR. IF BREATHING IS

DIFFICULT, ADMINISTER OXYGEN. GIVE ARTIFICIAL RESPIRATION IF BREATHING HAS

STOPPED. KEEP PERSON WARM AND QUIET. GET MEDICAL ATTENTION.



FIRST AID � INGESTION: THIS IS NOT AN ANTICIPATED ROUTE OF ENTRY.

                   SECTION 5 � FIRE FIGHTING MEASURES





FLASH POINT: -58 F                    LOWER EXPLOSIVE LIMIT:   3.9%

(PENSKY-MARTENS C.C.)                 UPPER EXPLOSIVE LIMIT: 16.9%



AUTOIGNITION TEMPERATURE: N.D.



EXTINGUISHING MEDIA: CO2, DRY CHEMICAL, WATERFOG



UNUSUAL FIRE AND EXPLOSION HAZARDS: VAPORS ARE HEAVIER THAN AIR AND

TRAVEL ALONG THE GROUND OR MAY BE MOVED BY VENTILATION AND IGNITED BY

IGNITION SOURCES AT LOCATIONS DISTANT FROM MATERIAL HANDLING POINT. FOR

AEROSOL PRODUCTS � EXPOSURE TO TEMPERATURES OVER 130F MAY CAUSE

CONTAINERS TO BURST, RELEASING HIGHLY FLAMMABLE GAS.



SPECIAL FIREFIGHTING PROCEDURES: WEAR SELF-CONTAINED BREATHING APPARATUS

WITH A FULL FACEPIECE OPERATED IN PRESSURE-DEMAND OR OTHER POSITIVE

PRESSURE MODE WHEN FIGHTING FIRES. KEEP FIRE EXPOSED CONTAINERS COOL WITH

WATER FOG.







               SECTION 6 � ACCIDENTAL RELEASE MEASURES





STEPS TO BE TAKEN IN CASE MATERIAL IS RELEASED OR SPILLED: ELIMINATE SOURCES

OF IGNITION AND VENTILATE AREA. PERSONS NOT PROPERLY EQUIPPED SHOULD BE

EXCLUDED FROM A REA. STOP SPILL AT SOURCE IF POSSIBLE. AVOID INHALATION OF

VAPORS. AVOID CONTACT WITH LIQUID. THIS PRODUCT CONSISTS OF MATERIALS

WHICH ARE GASES AT ROOM TEMPERATURE. IN THE EVENT OF AN ACCIDENTAL

RELEASE, THE CONTENTS OF THIS PRODUCT WILL EVAPORATE. IF UNEMPTIED

AEROSOLS ARE TO BE DISPOSED OF, DO SO IN ACCORDANCE WITH ALL LOCAL, STATE

AND FEDERAL REGULATIONS.







                    SECTION 7 � HANDLING AND STORAGE





HANDLING: No Information.



STORAGE: DO NOT STORE ABOVE 120F. DO NOT STORE IN DIRECT SUNLIGHT.

        SECTION 8 � EXPOSURE CONTROLS/PERSONAL PROTECTION



ENGINEERING CONTROLS: PROVIDE SUFFICIENT MECHANICAL VENTILATION (GENERAL

AND/OR LOCAL EXHAUST) VENTILATION TO MAINTAIN EXPOSURE BELOW TLV (S).



RESPIRATORY PROTECTION: IF WORK PLACE EXPOSURE LIMITS OF PRODUCT OR ANY

COMPONENT IS EXCEEDED, USE A NIOSH/MSHA APPROVED RESPIRATOR. CONSULT YOUR

SAFTEY EQUIPMENT SUPPLIER FOR RECOMMENDATIONS.



SKIN PROTECTION: NOT NECESSARY UNDER NORMAL CONDITIONS. WEAR INSULATED

RUBBER GLOVES IF THERE IS ANTICIPATED EXPOSURE TO LIQUID PRODUCT.



EYE PROTECTION: SAFETY GLASSES ARE RECOMMENDED TO PROTECT AGAINST FLYING

DIRT AND OTHER OBJECTS DISPLACED BY AIR DUSTER.



OTHER PROTECTIVE EQUIPMENT: NONE KNOWN



HYGIENIC PRACTICES: WASH HANDS BEFORE EATING OR SMOKING. SMOKE IN

DESIGNATED AREAS ONLY. REMOVE AND LAUNDER CLOTHING IF CONTAMINATED.







              SECTION 9 � PHYSICAL AND CHEMICAL PROPERTIES





BOILING RANGE    : -13 to -13 F             VAPOR DENSITY     : Is heavier than air

ODOR             : SLIGHT ETHER-LIKE ODOR   THRESHOLD         : N.D.

APPEARANCE       : COLORLESS GAS            EVAPORATION RATE: Is faster than Butyl

SOLUBILITY IN H2O: NEGLIGIBLE                                   Acetate

FREEZE POINT     : N.D.                      SPECIFIC GRAVITY : 0.9006

VAPOR PRESSURE : N.D.                        pH @ 0.0%        : N.A.

PHYSICAL STATE : LIQ. IN CAN                 VISCOSITY        : N.D.

COEFFICIENT OF WATER/OIL DISTRIBUTION: N.D.



(See Section 16 for abbreviation legend)







                     SECTION 10 � STABILITY AND REACTIVITY





CONDITIONS TO AVOID: HEAT, SPARKS, WELDING ARCS, OPEN FLAME, STATIC

ELECTRICITY, OR OTHER SOURCE OF IGNITION.



INCOMPATIBILITY: ALKALI, ALKALINE EARTH METALS.



HAZARDOUS DECOMPOSITION PRODUCTS: HYDROFLUORIC ACID AND POSSIBLY

CARBONYL FLUORIDE. CARBON MONOXIDE AND CARBON DIOXIDE



HAZARDOUS POLYMERIZATION: Will not occur under normal conditions.



STABILITY: This product is stable under normal storage conditions.

                    SECTION 11 � TOXICOLOGICAL PROPERTIES



No product or component toxicological information is available.







                     SECTION 12 � ECOLOGICAL INFORMATION



ECOLOGICAL INFORMATION: No Information.





                      SECTION 13 � DISPOSAL CONSIDERATIONS



DISPOSAL METHOD: No Information.





                  SECTION 14 � TRANSPORTATION INFORMATION



DOT Proper Shipping Name           1,1 � Difluoroethane

Hazard Class                       2.1

Identification Number              UN 1030

Packing Group                      Not Applicable



This product is packaged under DOT Exemption Number DOT-E 11516 and is FORBIDDEN on

passenger aircraft and passenger rail.





                     SECTION 15 � REGULATORY INFORMATION



U.S. FEDERAL REGULATIONS: AS FOLLOWS �



OSHA: Hazardous by definition of Hazard Communication Standard (29 CFR 1910.1200)



CERCLA � SARA HAZARD CATEGORY: This product has been reviewed according to the EPA

‘Hazard Categories� promulgated under Sections 311 and 312 of the Superfund Amendment and

Reauthorization Act of 1986 (SARA Title III) and is considered, under applicable definitions, to meet the

following categories:



SARA SECTION 313: This product contains the following substances subject to the reporting requirements

of Section 313 of Title III of the Superfund Amendments and Reauthorization Act of 1986 and 40 CFR Part

372:



=========CHEMICAL NAME========= CAS NUMBER ==========WT/WT % IS LESS THAN

No SARA Section 313 components exist in this product.



TOXIC SUBSTANCES CONTROL ACT: This product contains the following chemical substances subject

to the reporting requirements of TSCA 12(B) if exported from the United States:

=========CHEMICAL NAME========= CAS NUMBER

No information is available.



U.S. STATE REGULATIONS: AS FOLLOWS �



CALIFORNIA PROPOSITION 65: WARNING: The chemical (s) noted below and contained in this

product, are known to the state of California to cause cancer, birth defects or other reproductive harm:



=========CHEMICAL NAME========= CAS NUMBER ========== WT/WT % IS LESS THAN

No Proposition 65 chemicals exist in this product at levels above 1 ppm.



INTERNATIONAL REGULATIONS: AS FOLLOWS �



CANADIAN WHMIS: This MSDS has been prepared in compliance with Controlled Product Regulations

except for use of the 16 headings.



CANADIAN WHMIS CLASS: No information available.







                           SECTION 16 � OTHER INFORMATION





HMIS RATINGS � HEALTH: 2                FLAMMABILITY: 4              REACTIVITY: 1



PREVIOUS MSDS REVISION DATE: 3/1/06



REASON FOR REVISION: PERIODIC REVISION



VOC CONTENT: 0.0% BY WEIGHT, 0 GRAMS/LITER TOTAL PRODUCT, 0 GRAMS/LITER LESS

             WATER AND EXEMPT, 0.00 LBS/GAL



LEGEND: N.A. � Not Applicable

        N.E. � Not Established

        N.D. � Not Determined







                                            DISCLAIMER



The information contained on this MSDS has been checked and should be accurate. However, it is the

responsibility of the user to comply with all Federal, State, and Local laws and regulations. The

environmental information and hazardous materials identification system have been included by Aerofil

Technology, in order to provide additional health and hazard classification information. The ratings

recommended are based upon the criteria supplied by the developers of these rating systems, together with

Aerofil Technology’s interpretation of the available data. Proper personal protective equipment varies

widely with conditions of use and anticipated exposure. We recommend that a supervisor or other qualified

person determine proper PPE for intended use.