Material Safety Data Sheet
TJ 鈥? Insulated Header
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: October 10, 2005
1. Product Identification
Product Manufacturing Location(s)
TJ庐-Insulated Header USA: Brainerd, MN
Synonyms: Header
2. Hazardous Ingredients/Identity Information
Name CAS# Percent Agency Exposure Limits Comments
PEL-TWA 15 mg/m3
Wood None 89-91 OSHA Total dust
PEL-TWA 5 mg/m3
OSHA Respirable dust
fraction
TLV-TWA 0.5 mg/m3
ACGIH Inhalable, Western
red cedar
TLV-TWA 1 mg/m3
ACGIH Inhalable, All other
species
PEL-TWA 5 mg/m3
A
Recommended Softwood or
hardwood total dust
A
Recommended
PEL-STEL 10 mg/m3 Softwood or
hardwood total dust
A
Recommended
PEL-TWA 2.5 mg/m3 Western red cedar
total dust
Polymeric 9016-87-9 3-5 OSHA None None
diphenyl- ACGIH None
methane
diisocyanate B,C,D
Polystyrene B 9003-53-6 3-4 OSHA None None
ACGIH None
Paraffin wax B PEL-TWA 2 mg/m3
8002-74-2 <1 OSHA Paraffin wax fume
TLV-TWA 2 mg/m3
ACGIH Paraffin wax fume
A
Weyerhaeuser recommended exposure limit based on 1989 OSHA PELs. In 1992, the U.S. Court of Appeals for the Eleventh
Circuit Court overturned OSHA鈥檚 1989 Air Contaminants Rule, which included specific PELs for wood dust established by OSHA at
that time. Wood dust is now officially regulated as an organic dust in a category know as 鈥淧articulates Not Otherwise Regulated鈥?
(PNOR), or Nuisance Dust. However, a number of states have incorporated the OSHA PELs from the 1989 standard in their state
plans. Additionally, OSHA has announced that it may cite companies under the OSHA Act general duty clause under appropriate
circumstances for noncompliance with the 1989 PELs.
B
The VOC content of adhesives and sealants used are equal or less than the current VOC content limits of South Coast Air Quality
Management District (SCAQMD) Rule #1168, AND all sealants used as fillers meet or exceed the requirements of the Bay Area Air
Quality Management District Regulation 8, Rule 51.
C
This product contains no urea-formaldehyde resins.
D
This information is provided for the adhesive as an ingredient. There is no detectable MDI polymer in the product as purchased.
Weyerhaeuser MSDS WC 345-03
Page 1 of 7 Rev. 10/10/2005
3. Hazard Identification
Appearance and Odor: TJ庐-Insulated Header consists of one layer polystyrene foam glued with a hot
melt moisture-cured adhesive between two plies of TimberStrand庐LSL. The product has a slightly
aromatic/wood odor. The wood component may consist of aspen, birch, maple, and/or sycamore.
Primary Health Hazards: The primary health hazard posed by these products is thought to be due to
exposure to wood dust.
Primary Route(s) of Exposure:
Ingestion:
鈱? Skin: Dust
鈱? Inhalation: Dust
鈱? Eye: Dust
Medical Conditions Generally Aggravated by Exposure: Wood dust may aggravate pre-existing
respiratory conditions or allergies.
Signs and Symptoms of Exposure:
Acute Health Hazards: Wood dust can cause eye irritation. Certain species of wood dust can elicit
allergic contact dermatitis in sensitized individuals. Wood dust may cause respiratory irritation, nasal
dryness, coughing, sneezing, and wheezing as a result of inhalation.
Chronic Health Hazards: Wood dust, depending on the species, may cause allergic contact dermatitis
and respiratory sensitization with prolonged, repetitive contact or exposure to elevated dust levels.
Prolonged exposure to certain wood dust has been reported to be associated with nasal cancer.
Carcinogenicity Listing:
鈱? NTP: Wood dust, Known to be a Human Carcinogen
鈱? IARC Monographs: Wood dust, Group 1; Methylene bisphenyl diisocyanate, Group 3;
Polystyrene, Group 3.
OSHA Regulated: Not listed
NTP:
Wood Dust
According to its Tenth Report on Carcinogens, NTP states, 鈥淲ood dust is known to be a human
carcinogen based on sufficient evidence of carcinogenicity from studies in humans. An association
between wood dust exposure and cancer of the nose has been observed in many case reports,
cohort studies, and case-control studies that specifically addressed nasal cancer. Strong and
consistent associations with cancer of the nasal cavities and paranasal sinuses were observed both
in studies of people whose occupations are associated with wood dust exposure and in studies that
directly estimated wood dust exposure.鈥?
IARC:
Wood Dust
Group 1 (Carcinogenic to humans; sufficient evidence of carcinogenicity). This classification is primarily
based on studies showing an association between occupational exposure to wood dust and
adenocarcinoma of the nasal cavities and paranasal sinuses. IARC did not find sufficient evidence of
an association between occupational exposure to wood dust and cancers of the oropharynx,
hypopharynx, lung, lymphatic and hematopoietic systems, stomach, colon or rectum.
Group 3 (Unclassifiable as to carcinogenicity to humans). This category is based on exposure
circumstances for which the evidence of carcinogenicity is inadequate in humans and inadequate or
limited in experimental animals.
4. Emergency and First-Aid Procedures
Ingestion: Not applicable under normal use.
Eye Contact: Wood dust may cause mechanical irritation. Treat dust in eye as foreign object. Flush
with water to remove dust particles. Seek medical attention if irritation persists.
Skin Contact: In sensitized individuals, wood dust of certain species can elicit allergic contact dermatitis
and mechanical irritation resulting in erythema and hives. Seek medical attention if rash, irritation or
dermatitis persists.
Weyerhaeuser MSDS WC 345-03
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4. Emergency and First-Aid Procedures (cont鈥檇.)
Skin Absorption: Not known to occur under normal use.
Inhalation: Wood dust may cause unpleasant obstruction in the nasal passages, resulting in dryness of
nose, dry cough, sneezing and headaches. Move to fresh air and seek medical attention if irritation is
persistent, or if severe coughing or breathing difficulty occurs.
Note to Physician: None
5. Fire and Explosion Data
Flash Point (Method Used): NAP
LFL = NAP UFL = NAP
Flammable Limits:
Extinguishing Media: Water, carbon dioxide or sand
Autoignition Temperature: Variable [typically 400-500掳F (204-260潞C)]
Special Firefighting Procedures: None
Unusual Fire and Explosion Hazards: Depending on moisture content, and more importantly, particle
size, wood dust may explode in the presence of an ignition source. An airborne concentration of 40
grams (40,000 mg) of dust per cubic meter of air is often used as the LEL for wood dust.
Health = 1 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. Wood dust generated from sawing, sanding, drilling or routing of the product may be vacuumed
or shoveled for recovery or disposal. Avoid dusty conditions and provide good ventilation. Use
NIOSH-approved respirator and goggles where ventilation is not possible and the allowable exposure
limits may be exceeded.
7. Handling and Storage
Precautions to be Taken In Handling and Storage: No special handling precautions are required for
product in purchased form. Avoid repeated or prolonged breathing of wood dust. Store in well-
ventilated, cool, dry place away from open flame.
8. Exposure Control Measures, Personal Protection
Personal Protective Equipment:
RESPIRATORY PROTECTION 鈥? Not applicable for product in purchased form. A NIOSH-approved
respirator is recommend if allowable exposure limits may be exceeded when machining the product.
PROTECTIVE GLOVES 鈥? Not required. However, cloth, canvas, or leather gloves are recommended to
minimize potential splinters or mechanical irritation from handling product.
EYE PROTECTION鈥? Not applicable for product in purchased form. Goggles or safety glasses with side
shields are recommended when machining the product.
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? Follow good hygienic and housekeeping practices. Clean up areas
where dust settles to avoid excessive accumulation of this combustible material. Minimize blowdown
and other practices that generate high airborne-dust concentrations.
Weyerhaeuser MSDS WC 345-03
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8. Exposure Control Measures, Personal Protection (cont鈥檇.)
Ventilation:
LOCAL EXHAUST 鈥? Provide local exhaust as needed when machining the product so that exposure
limits are not exceeded.
MECHANICAL (GENERAL) 鈥? Provide general ventilation in processing and storage areas so that
exposure limits are not exceeded.
SPECIAL 鈥? None
OTHER 鈥? None
9. Physical/Chemical Properties
Physical Description: TJ庐-Insulated Header consists of one layer polystyrene foam glued with a hot
melt moisture-cured adhesive between two plies of TimberStrand庐 LSL. The product has a slightly
aromatic/wood odor. The wood component may consist of aspen, birch, maple, and/or sycamore.
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:
<0.1
Solubility in Water (% by weight):
Variable; depends on wood species and moisture
Specific Gravity (H2O = 1):
NAP
Vapor Density (air = 1; 1 atm):
NAP
Vapor Pressure (mm Hg):
NAP
Viscosity:
0
% Volatile by Volume [@ 70掳F (21掳C)]:
10. Stability and Reactivity
鈱? Stable
Stability: Unstable
Conditions to Avoid: Avoid open flame. Product may ignite at temperatures over 400潞F (204潞C).
Incompatibility (Materials to Avoid): Avoid contact with oxidizing agents, strong acids and bases.
Hazardous Decomposition or By-Products: Thermal decomposition products include carbon
monoxide, carbon dioxide, aliphatic aldehydes, resin acids, terpenes, polycyclic aromatic
hydrocarbons and nitrogen-containing gases.
鈱? Will not occur
Hazardous Polymerization: May occur
Sensitivity to Mechanical Impact: NAP
Sensitivity to Static Discharge: NAP
Weyerhaeuser MSDS WC 345-03
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11. Toxicological Information
Toxicity Data: None available for product in purchased form.
Components: Individual component information is listed below if available.
Wood dust (softwood or hardwood)
OSHA Hazard Rating = 3.3; moderately toxic with probable oral lethal dose to humans being 0.5-5 g/kg
(about 1 pound for a 70 kg or 150 pound person.) Source: OSHA Regulated Hazardous
Substances, Government Institutes, Inc., February 1990.
Wood dust 鈥? generated from sawing, sanding or machining the product 鈥? may cause nasal dryness,
irritation, coughing and sinusitis. NTP and IARC classify wood dust as a human carcinogen (IARC
Group 1). This classification is based primarily on increased risk in the occurrence of
adenocarcinomas of the nasal cavities and paranasal sinuses associated with exposure to wood
dust. The evaluation did not find sufficient evidence to associate cancers of the oropharynx,
hypopharynx, lung, lymphatic and hematopoietic systems, stomach, colon or rectum with exposure to
wood dust.
Methylene bisphenyl diisocyanate (MDI): TCLO inhalation in humans = 130 ppb
Polystyrene: LC50 inhalation in mice = 120 mg/m3. TDLO implant in rats = 19 mg/kg.
Target Organs: None
12. Ecological Information
Environmental Fate: No information available at this time.
Environmental Toxicity: No information available at this time.
13. Disposal Considerations
Waste Disposal Method: Dry land disposal is acceptable in most states. However, if disposed or
discarded in its purchased form, incineration is preferable. It is the user鈥檚 responsibility to determine
at the time of disposal whether your product meets RCRA criteria for hazardous waste. Follow
applicable federal, state and local regulations.
14. Transport Information
Mode: (Air, Land, water) Not regulated as a hazardous material by the DOT. Not listed as a hazardous
material in TDG regulations. Not listed as a Hazardous material by IATA regulations, or IMDG Code.
NAP
Proper Shipping Name:
NAP
Hazard Class:
NAP
UN/NA ID Number:
NAP
Packing Group:
NAP
Information Reported for Product/Size:
15. Regulatory Information
TSCA: The following ingredients are listed on the TSCA inventory:
Polymeric diphenylmethane diisocyanate (CAS# 9016-87-9)
Paraffin wax (CAS# 8002-74-2)
Polystyrene (CAS# 9003-53-6)
Methylene bisphenyl diisocyanate (CAS# 101-68-8)
CERCLA: NAP
Weyerhaeuser MSDS WC 345-03
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15. Regulatory Information (cont鈥檇.)
DSL: The following ingredients are listed on the DSL inventory:
Polymeric diphenylmethane diisocyanate (CAS# 9016-87-9)
Paraffin wax (CAS# 8002-74-2)
Polystyrene (CAS# 9003-53-6)
Methylene bisphenyl diisocyanate (CAS# 101-68-8)
OSHA: NAP
STATE RIGHT-TO-KNOW:
New Jersey 鈭? Methylene bisphenyl diisocyanate, CAS#101-68-8 appears on New Jersey鈥檚 Environmental
Hazardous Substance List.
Pennsylvania 鈭? Paraffin wax, CAS# 8002-74-2 and wood dust appear on Pennsylvania鈥檚 Appendix A 鈥?
Hazardous Substance Lists.
SARA 313 Information: This product as purchased does not contain chemicals subject to SARA Title III
Section 313 supplier notification requirements.
SARA 311/312 Hazard Category: This product as purchased has been reviewed according to the EPA
鈥淗azard Categories鈥? promulgated under SARA Title III Sections 311 and 312 and is considered,
under applicable definitions, to meet the following categories:
An immediate (acute) health hazard No
A delayed (chronic) health hazard No
A fire hazard No
A reactivity hazard No
A sudden release hazard No
FDA: NAP
WHMIS Classification: Not a controlled product in its purchased form. Methylene bisphenyl
diisocyanate, CAS# 101-68-8 鈥? WHMIS Class D2B
16. Additional Information
Date Prepared: 09/10/2003
Date Revised: 10/10/2005
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 this information
is suitable for their applications and to follow safety precautions as may be necessary. The user has
the responsibility to make sure that this sheet is the most up-to-date issue.
Definition of Common Terms:
ACGIH = American Conference of Governmental Industrial Hygienists
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
EPA = U.S. Environmental Protection Agency
IARC = International Agency for Research on Cancer
IATA = International Air Transport Association
IMDG = International Maritime Dangerous Goods
Weyerhaeuser MSDS WC 345-03
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16. Additional Information (cont鈥檇.)
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
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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