Material Safety Data Sheet
Modified Fiber (MF)
Weyerhaeuser Company Emergency Phone: (253) 924-5000
PO Box 9777 Additional Information: (253) 924-3865
Federal Way, WA 98063-9777 CHEMTREC: (800) 424-9300
http://www.weyerhaeuser.com/environment/msds/default.asp Revised Date: March 2, 2007
1. Product Identification
Product Manufacturing Location(s)
CMC519, CMC520 USA: Columbus Modified Fiber; Columbus, MS
Synonyms: None
2. Hazardous Ingredients/Identity Information
Name CAS# Percent Agency Exposure Limits Comments
PEL-TWA 15 mg/m3
Pulp 65996-61-4 >80 OSHA Total dust
PEL-TWA 5 mg/m3
(cellulose) OSHA Respirable dust
TLV-TWA 10 mg/m3
ACGIH Total dust
Specialty None <11 OSHA None None
Additive* ACGIH None
Water 7732-18-5 9 OSHA None None
ACGIH None
* Trade secret
3. Hazard Identification
Appearance and Odor: The product is an off-white pulp in bale form.
Primary Health Hazards: The primary health hazard posed by this product is thought to be due to
exposure to dust.
Primary Route(s) of Exposure:
Ingestion:
Skin:
鈱? Inhalation: Dust
鈱? Eye: Dust
Medical Conditions Generally Aggravated by Exposure: Cellulose dust may aggravate pre-existing
respiratory conditions or allergies.
Chronic Health Hazards: Paper (cellulose) dust is a biologically inert dust that has little or no effect on
the lungs and does not produce significant organic disease or toxic effect when allowable exposure
limits are met.
Carcinogenicity Listing:
NTP: Not listed
IARC Monographs: Not listed
OSHA Regulated: Not listed
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4. Emergency and First-Aid Procedures
Ingestion: Not applicable for product in purchased form.
Eye Contact: Dust may mechanically irritate the eyes, resulting in redness or watering. Treat dust in
eye as foreign object. Flush with water to remove dust particles. Get medical help if irritation
persists.
Skin Contact: Not applicable for product in purchased form.
Skin Absorption: Not applicable for product in purchased form.
Inhalation: Excessive dust concentrations may cause unpleasant obstruction in the nasal passages.
Remove to fresh air. Get medical help if persistent irritation, severe coughing, or breathing difficulty
occurs.
Note to Physician: None
5. Fire and Explosion Data
Flash Point (Method Used): NAP
See below under 鈥淯nusual Fire and NAP
Flammable Limits: LFL = UFL =
Explosion Hazards"
Extinguishing Media: Water
Autoignition Temperature: 450oF (232oC)
Special Firefighting Procedures: None
Unusual Fire and Explosion Hazards: Depending on moisture content, particle diameter, and rate of
heating, cellulose dust may explode in the presence of an ignition source. An airborne concentration
of 30,000 mg/m3 is often used as the LEL for cellulose pulp.
Health = 0 Fire = 1 Reactivity = 0
NFPA Rating (Scale 0-4):
6. Accidental Release Measures
Steps to be Taken In Case Material Is Released or Spilled: Not applicable for product in purchased
form. Sweep or vacuum for recovery or disposal. Use NIOSH approved dust respirator and goggles
where ventilation is not possible and exposure limits may be exceeded.
Other Precautions: Minimize compressed air blowdown or other practices that generate high dust
levels.
7. Handling and Storage
Precautions to be Taken In Handling and Storage: No special handling precautions are required.
Keep in cool, dry place away from open flame, sparks and other sources of ignition.
8. Exposure Control Measures, Personal Protection
Personal Protective Equipment:
RESPIRATORY PROTECTION 鈥? Not applicable for product in purchased form. A NIOSH approved dust
respirator is recommended when allowable exposure limits may be exceeded.
PROTECTIVE GLOVES 鈥? Not applicable for product in purchased form. However, cloth, canvas, or
leather gloves are recommended to minimize potential mechanical irritation from handling product.
EYE PROTECTION 鈥? Not applicable for product in purchased form. However, goggles or safety glasses
are recommended if the product is used in such a way as to generate high dust levels.
OTHER PROTECTIVE CLOTHING OR EQUIPMENT 鈥? Not applicable for product in purchased form.
Outer garments may be desirable in extremely dusty areas.
WORK/HYGIENE PRACTICES 鈥? Not applicable for product in purchased form.
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8. Exposure Control Measures, Personal Protection (cont鈥檇.)
Ventilation:
LOCAL EXHAUST 鈥? Provide local exhaust as needed so that exposure limits are met.
MECHANICAL (GENERAL) 鈥? Provide general ventilation in processing and storage areas so that
exposure limits are met.
SPECIAL 鈥? None
9. Physical/Chemical Properties
Physical Description: The product is an off-white pulp in bale form.
NAP
Boiling Point (@ 760 mm Hg):
NAP
Evaporation Rate (Butyl Acetate = 1):
NAP
Freezing Point:
NAP
Melting Point:
NAP
Molecular Formula:
NAP
Molecular Weight:
NAP
Oil-water Distribution Coefficient:
NAV
Odor threshold:
NAP
pH:
< 1.0
Solubility in Water (% by weight):
0.6
Specific Gravity (H2O = 1):
NAP
Vapor Density (air = 1; 1 atm):
NAP
Vapor Pressure (mm Hg):
NAP
Viscosity:
% Volatile by Volume [@ 70oF (21oC)]: NAP
10. Stability and Reactivity
鈱? Stable
Stability: Unstable
Conditions to Avoid: NAP
Incompatibility (Materials to Avoid): Avoid open flame, sparks and other sources of ignition.
Hazardous Decomposition or By-Products: Combustion products include carbon monoxide, carbon
dioxide and fine particulate in the form of smoke
鈱? Will not occur
Hazardous Polymerization: May occur
Sensitivity to Mechanical Impact: NAP
Sensitivity to Static Discharge: NAP
11. Toxicological Information
Components:
Toxicity Data: Product in purchased form:
Acute Toxicity: LD50 (rats, oral) >5000mg/kg
Human Skin Irritation: Non-irritating. Does not cause sensitization.
Chronic Toxicity: No evidence of mutagenic, reproductive or carcinogenic effects.
Cellulose: LC50 (rats, inhalation) = 5,800 mg/m3/4 hours.
Source: Registry of Toxic Effects of Chemical Substances (RTECS), National Institute for Occupational
Safety and Health.
Target Organs: Eyes, respiratory system.
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12. Ecological Information
Environmental Fate: No information available at this time. Material naturally biodegrades when
exposed to the environment.
Environmental Toxicity: No information available at this time. A Biodegradation product promotes soil
fertility and plant growth. No toxic components are used in the manufacture of these materials.
13. Disposal Considerations
Waste Disposal Method: Recycling centers are available in nearly every major and most small cities
within the US and Canada that can take waste paper at no charge. Deposit in a landfill or incinerate
in accordance with federal, state, and local regulations. Cellulose is not listed under any sections of
the Resource Conservation and Recovery Act (RCRA) or Canadian National Pollution Release
Inventory (NPRI). Follow all applicable federal, state, provincial and local regulations. It is, however,
the user's responsibility to determine at the time of disposal whether your product meets RCRA
criteria for hazardous waste.
14. Transport Information
Mode: (Air, Land, water) Not regulated as a hazardous material by the U.S. Department of
Transportation. Not listed as a hazardous material in Canadian Transportation of Dangerous Goods
(TDG) regulations. Not listed as a hazardous material for IATA, and IMDG.
NAP
Proper Shipping Name:
NAP
Hazard Class:
NAP
UN/NA ID Number:
NAP
Hazard Zone:
NAP
Packing Group:
15. Regulatory Information
TSCA: All ingredients are on the TSCA inventory.
CERCLA: NAP
DSL: All ingredients are listed under the Canadian Domestic Substance List.
EINECS: All ingredients are listed on the European Inventory of Existing Commercial Chemical
Substances or European List of Notified Chemical substances.
ENCS: Cellulose (pulp) is not listed or is exempt from the Japanese Existing and New Chemical
Substances List as regulated by the Ministry of International Trade and Industry.
AICS: All ingredients are listed on the Australian Inventory of Chemical Substances.
KECL: All ingredients are listed on the South Korean Existing Chemicals List
OSHA: OSHA Hazard Communication Standard [29 CFR 1910.1200].
STATE RIGHT-TO-KNOW:
California Prop 65 鈥? This product does not contain any substances listed under California Prop. 65.
New Jersey 鈥? This product does not contain any substances listed by the State of New Jersey.
Pennsylvania 鈥? This product contains cellulose, a substance listed by the State of Pennsylvania
SARA 313 Information: To the best of our knowledge, this product contains no chemical subject to
SARA Title III Section 313 supplier notification requirements.
SARA 311/312 Hazard Category: This product has been reviewed according to the EPA "Hazard
Categories" promulgated under SARA Title III Sections 311 and 312 and is considered, under
applicable definitions, to meet the following categories:
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15. Regulatory Information (cont鈥檇.)
An immediate (acute) health hazard No
A delayed (chronic) health hazard No
A corrosive hazard No
A reactivity hazard No
A fire hazard No
A sudden release hazard No
FDA: Ingredients used in manufacturing this product are either generally recognized as safe (GRAS),
and/or approved for use as an indirect food additive. This product is also approved for use as a
protective garment for incontinence.
WHMIS Classification: Not a controlled product.
16. Additional Information
Date Prepared: 12/10/85
Date Revised: 03/02/2007
Prepared By: Weyerhaeuser Company Corporate Environment, Health & Safety
Weyerhaeuser MSDS available on: http://www.weyerhaeuser.com/environment/msds/default.asp
User鈥檚 Responsibility: The information contained in this Material Safety Data Sheet is based on the
experience of occupational health and safety professionals and comes from sources believed to be
accurate or otherwise technically correct. It is the user鈥檚 responsibility to determine if the product is
suitable for its proposed application(s) and to follow necessary safety precautions. The user has the
responsibility to make sure that this MSDS is the most up-to-date issue.
Definition of Common Terms:
ACGIH = American Conference of Governmental Industrial Hygienists
AICS = Australian Inventory of Chemical Substances
C = Ceiling Limit
CAS# = Chemical Abstracts System Number
DOT = U. S. Department of Transportation
DSL = Domestic Substance List
EC50 = Effective concentration that inhibits the endpoint to 50% of control population
EINECS = European Inventory of Existing Commercial Chemical Substances or European List of
Notified Chemical Substances
ENCS = Japanese Existing and New Chemical Substances List
EPA = U.S. Environmental Protection Agency
IARC = International Agency for Research on Cancer
IATA = International Air Transport Association
IMDG = International Maritime Dangerous Goods
KECL = South Korean Existing Chemicals List
LC50 = Concentration in air resulting in death to 50% of experimental animals
LCLo = Lowest concentration in air resulting in death
LD50 = Administered dose resulting in death to 50% of experimental animals
LDLo = Lowest dose resulting in death
LEL = Lower Explosive Limit
LFL = Lower Flammable Limit
MSHA = Mine Safety and Health Administration
NAP = Not Applicable
NAV = Not Available
NIOSH = National Institute for Occupational Safety and Health
NPRI = Canadian National Pollution Release Inventory
NTP = National Toxicology Program
OSHA = Occupational Safety and Health Administration
PEL = Permissible Exposure Limit
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16. Additional Information (cont鈥檇.)
RCRA = Resource Conservation and Recovery Act
STEL = Short-Term Exposure Limit (15 minutes)
STP = Standard Temperature and Pressure
TCLo = Lowest concentration in air resulting in a toxic effect
TDG = Canadian Transportation of Dangerous Goods
TDLo = Lowest dose resulting in a toxic effect
TLV = Threshold Limit Value
TSCA = Toxic Substance Control Act
TWA = Time-Weighted Average (8 hours)
UFL = Upper Flammable Limit
WHMIS = Workplace Hazardous Materials Information System
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