MATERIAL SAFETY DATA SHEET - Weyerhaeuser

1 MATERIAL SAFETY data SHEET1. Product and Company IdentificationMaterial nameWOOD PRODUCTS (UF BONDED)Product useBuilding Materials - DecorativeChemical descriptionMedium Density Fiberboard (MDF) and hardboard paneling bonded with urea-formaldehyde listSee Product List found in Section 16 Manufacturer informationGeorgia-Pacific Wood Products LLC133 Peachtree Street, NEAtlanta, GA 3030 MSDS Request Information - Emergency Hazards IdentificationEmergency overviewSawing, sanding or machining wood or wood products can generate dust. Wood dust may igniteor form explosive mixture with air in the presence of an ignition source. Wood dust and/orformaldehyde may be irritating to eyes, skin and/or respiratory health effectsEyesContact with eyes may cause irritation and/or with skin may cause and formaldehyde vapors may cause respiratory tract to MATERIAL form and application, ingestion is considered unlikely.

2 May result in irritation of thedigestive organsEyes, skin, gastrointestinal tract, and respiratory systemComponentsCAS #Percent3. Composition / Information on IngredientsNot Assigned60 - 100 WOOD/WOOD DUST50-00-00 - commentsSome lumber products may be sprayed with sap stain control First Aid MeasuresFirst aid proceduresEye contactIn case of contact, immediately flush eyes with large amounts of water, continuing to flush for 15minutes. Do not rub the eyes. Get medical attention contactIf irritation develops, wash with soap and water. Get medical attention if irritation from area of exposure. If the affected person is not breathing, apply artificial persistent irritation, severe coughing or breathing difficulty occurs, seek medical wood or wood dust is swallowed, get immediate medical attention or advice -- Do not Fire Fighting MeasuresExtinguishing mediaSuitable extinguishingmediaUse methods for the surrounding fightingequipment/instructionsFirefighte rs should wear full protective clothing including self contained breathing burned dust is especially hazardous if dispersed into the air.

3 Wet down to reducelikelihood of ignition or dispersion. Remove burned or wet dust to open, secure area after fire dataSensitivity to staticdischargeNot name: WOOD PRODUCTS (UF BONDED)ID: GP-30 Effective date: 10-19-2012 MSDS GP NORTH AMERICA1 / 6 Sensitivity to mechanicalimpactNot combustionproductsHazardous decomposition products may include irritating fumes or gases including carbonmonoxide, aldehydes or organic Accidental Release MeasuresPersonal precautionsWear appropriate protective equipment and clothing during clean-up. Ensure adequateventilation. Avoid inhalation of dust during clean for cleaning upVacuum or wet sweep small wood pieces and dust; place in appropriate container for larger pieces by an appropriate method. Reduce airborne dust by use of wet methods andprevent scattering by moistening with Handling and StorageHandlingDust can form an explosive mixture in air.

4 Provide appropriate exhaust ventilation at machineryand at places where dust can be generated. Use personal protective equipment as frequent or prolonged inhalation of wood dust. Avoid contact with skin, eyes and hands thoroughly after handling. Keep formation of airborne dusts to a minimum. Keepaway from heat and sources of flat, supported and protected from direct contact with the ground. Keep in a well-ventilatedplace away from incompatible materials. Store in a cool dry Exposure Controls / Personal ProtectionOccupational exposure limitsUS. ACGIH Threshold Limit ValuesComponentsValueTypeFormFORMALDEHYD E(50-00-0) ppmWOOD/WOOD DUST (NotAssigned) mg/m3 Inhalable mg/m3(Inhalable) - OSHAC omponentsValueTypeFormFORMALDEHYDE(50-00 -0)STEL2 ppm(29 CFR ) ppmWOOD/WOOD DUST (NotAssigned)STEL10 mg/m3(Vacated)TWA5 mg/m3(Total dust) (Vacated)Exposure guidelinesGeorgia-Pacific Wood Products LLC voluntarily elects to adhere to exposure limits contained inOSHA's 1989 Air Contaminants Standard although certain limits were vacated in 1992.

5 Thepresent OSHA exposure limits governing wood dust is 15 mg/m3 (Total Dust) and 5 mg/m3(Respirable Fraction).Engineering controlsDue to the explosive potential of dust when suspended in air, precautions should be taken whensawing, sanding, or machining wood or wood products to prevent sparks or other ignition sourcesin ventilation equipment. Local exhaust ventilation is recommended when sawing, sanding, ormachining this product. General dilution ventilation is recommended in processing and storageareas. Use wet methods, if appropriate, to reduce generation of protective equipmentEye / face protectionSafety glasses or goggles are recommended when using this product. Ensure compliance withOSHA's PPE standard (29 CFR and .133) for eye and face protectionImpervious protective clothing and gloves recommended to prevent drying or irritation of compliance with OSHA's PPE standards (29 CFR (general) and 138 (handprotection)).

6 SAFETY shower/eye wash fountain is recommended in the workplace area (29 (c)).Respiratory protectionA NIOSH approved dust mask or filtering facepiece is recommended in poorly ventilated areas orwhen permissible exposure limits may be exceeded. Respirators should be selected by and usedunder the direction of a trained health and SAFETY professional following requirements found inOSHA's respirator standard (29 CFR ) and ANSI's standard for respiratory protection( ). MATERIAL name: WOOD PRODUCTS (UF BONDED)ID: GP-30 Effective date: 10-19-2012 MSDS GP NORTH AMERICA2 / 69. Physical & Chemical PropertiesAppearanceRigid boardColorVariousFormSolid woodOdorResinous woodOdor thresholdNot availablepHNot applicableFreezing pointNot applicableBoiling pointNot applicableFlash pointNot applicableEvaporation rateNot applicableFlammabilityCombustibleFlammab ility limits in air, upper,% by volumeNot availableFlammability limits in air, lower,% by volume40 g/cm3 for wood dustVapor pressureNot applicableVapor densityNot applicableSpecific gravityVariablePartition coefficient(n-octanol/water)Not applicableSolubility (water)InsolubleAuto-ignition - 500 F ( - 260 C) for wood10.

7 Chemical Stability & Reactivity InformationChemical stabilityStable at normal of reactivityNone materialsStrong acids, alkalies, oxidizing agents and drying decompositionproductsThermal decomposition may emit irritating fumes or gases of carbon monoxide, carbon dioxide,aldehydes, or organic of hazardousreactionsWill not Toxicological InformationToxicological informationNo toxicological data available for this product. Toxicological information for components of thisproduct is listed DUST. Wood dust may cause dryness, irritation, coughing or sinusitis. IARC and NTPclassify wood dust as a carcinogen due to cancers of the upper respiratory Exposure to formaldehyde may cause temporary irritation to the nose andthroat and may lead to respiratory disorders. Pre-existing respiratory disorders may also beaggravated by exposure. Studies have reported that persons with asthma responded nodifferently than healthy individuals at concentrations as high as 3 and NTP classify formaldehyde as a carcinogen due to cancers of the upper respiratorysystem and leukemia.

8 OSHA regulates formaldehyde as a potential carcinogen for exposures ator exceeding information (Ingredients)FORMALDEHYDE (CAS # 50-00-0)Toxicology data - Selected LD50s and LC50sInhalation LC50 Rat: mg/l/4hOral LD50 Rat: 100 mg/kgRoutes of exposureSkin contact. Eye contact. SensitizerFORMALDEHYDE (CAS 50-00-0)US ACGIH Threshold Limit Values: SensitiserMaterial name: WOOD PRODUCTS (UF BONDED)ID: GP-30 Effective date: 10-19-2012 MSDS GP NORTH AMERICA3 / 6 WOOD/WOOD DUST (CAS Not Assigned)US ACGIH Threshold Limit Values: SensitiserChronic effectsHazardous by OSHA/WHMIS by OSHA/WHMIS CarcinogensFORMALDEHYDE (CAS 50-00-0)US ACGIH Threshold Limit Values: A2 carcinogenWOOD/WOOD DUST (CAS Not Assigned)US ACGIH Threshold Limit Values: A1 carcinogenUS ACGIH Threshold Limit Values: A2 carcinogenIARC Monographs Overall Evaluation of CarcinogenicityFORMALDEHYDE (CAS 50-00-0)1 Volume 88, Volume 100 FWOOD/WOOD DUST (CAS Not Assigned)1 Volume 62, Volume 100 CUS NTP Report on Carcinogens: Anticipated carcinogenFORMALDEHYDE (CAS 50-00-0)US NTP Report on Carcinogens: Anticipated carcinogenUS NTP Report on Carcinogens.

9 Known carcinogenWOOD/WOOD DUST (CAS Not Assigned)US NTP Report on Carcinogens: Known carcinogenUS OSHA Specifically Regulated Substances: Potential cancer hazardFORMALDEHYDE (CAS 50-00-0)US OSHA Specifically Regulated Substances: Potential cancerhazardUS OSHA Specifically Regulated Substances: ReferenceFORMALDEHYDE (CAS 50-00-0)29 CFR expected to be hazardous by OSHA/WHMIS effectsNot expected to be hazardous by OSHA/WHMIS expected to be hazardous by OSHA/WHMIS materialsNot Ecological InformationComponentsTest ResultsEC50 Daphnia: 2 mg/L HoursFORMALDEHYDE (50-00-0)LC50 Fish: mg/L Hours13. Disposal ConsiderationsDisposal instructionsUnder RCRA, it is the responsibility of the user of the product to determine, at the time ofdisposal, whether the product meets RCRA criteria for hazardous waste. Dispose of materialaccording to Local, State, Federal, and Provincial Environmental Transport InformationDOTNot regulated as dangerous regulated as dangerous Regulatory InformationSuperfund Amendments and Reauthorization Act of 1986 (SARA)Hazard categoriesImmediate Hazard - YesDelayed Hazard - YesFire Hazard - YesPressure Hazard - NoReactivity Hazard - NoSection 302 extremelyhazardous substanceNoSection 311 hazardouschemicalYesSection 313 hazardouschemicalYesMaterial name: WOOD PRODUCTS (UF BONDED)ID: GP-30 Effective date: 10-19-2012 MSDS GP NORTH AMERICA4 / 6US federal regulationsOSHA.

10 Wood products are not hazardous under the criteria of the Federal OSHA HazardCommunication Standard 29 CFR However, formaldehyde emissions and wood dustgenerated from sawing, sanding or machining wood and wood products is considered hazardousand is regulated under the Hazardous Communication Standard 29 CFR The Department of Housing and Urban Development (HUD) regulation 24 CFR 3280provides for third-party certification of particleboard and hardwood plywood manufactured withurea-formaldehyde resin for formaldehyde emissions. In all cases, certification is made inaccordance with ASTM E1333-96, Large Scale Test Method for Determining FormaldehydeEmissions from Wood Products. Georgia Pacific Wood Products, LLC does not manufacturerparticleboard or hardwood plywood bonded with urea formaldehyde. Urea formaldehyde bondedthin MDF paneling manufactured by Georgia Pacific Wood Products, LLC is not covered in theHUD regulation 24 CFR 3280.