Material Safety Data Sheet
Microllam Laminated Veneer Lumber (LVL) and/or
Parallam Parallel Strand Lumber (PSL)
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: January 4, 2008
1. Product Identification
Product Manufacturing Location(s)
USA: Albany, OR; Buckhannon, WV;
Microllam庐 Laminated Veneer Lumber (LVL)
Castleberry, AL; Eugene, OR; Nachitoches, LA;
Simsboro, LA; Stayton, OR.
USA: Buckhannon, WV; Colbert, GA.
Parallam庐 Parallel Strand Lumber (PSL)
Canada: Vancouver, BC.
Open-Web Trusses USA: Chino, CA; Delaware, OH; Hillsboro, OR.
Synonyms: Header, Phenol Formaldehyde/Resorcinol Formaldehyde Bonded Product.
2. Hazardous Ingredients/Identity Information
Name CAS# Percent Agency Exposure Limits Comments
PEL-TWA 15 mg/m3
Wood None 90-99 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
A
PEL-TWA 5 mg/m3
Recommended Softwood or
hardwood total dust
A
PEL-STEL 10 mg/m3
Recommended Softwood or
hardwood total dust
A
PEL-TWA 2.5 mg/m3
Recommended Western red cedar
total dust
Phenol None 1-9 OSHA PEL-TWA 0.75 ppm Free gaseous
formaldehyde formaldehyde
or Phenol- OSHA PEL-STEL 2 ppm Free gaseous
resorcinol formaldehyde
ACGIH TLV-Ceiling 0.3 ppm Free gaseous
formaldehyde
resin solids B, C formaldehyde
Paraffin wax B 2 mg/m3
8002-74-2 0-2 OSHA PEL-TWA Paraffin wax fume
2 mg/m3
ACGIH TLV-TWA Paraffin wax fume
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2. Hazardous Ingredients/Identity Information (cont鈥檇.)
A
Weyerhaeuser recommended exposure limits 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 known 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 OSH 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
These products contain less than 0.05% free formaldehyde and contain no urea-formaldehyde resins. Phenol formaldehyde resin
is used in face/surface material and/or center/core material.
3. Hazard Identification
Appearance and Odor: Laminated product with a slightly aromatic resinous odor and natural wood
color. The wood component of these products may consist of aspen, douglas fir, western hemlock,
southern yellow pine or yellow poplar.
Primary Health Hazards: The primary health hazard posed by these products is thought to be due to
inhalation of 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, 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 wood dust has been reported by some observers to be associated with nasal
cancer.
Carcinogenicity Listing:
鈱? NTP: Wood dust, Known to be a Human Carcinogen. Formaldehyde gas, Reasonably
Anticipated to be a Human Carcinogen.
鈱? IARC Monographs: Wood dust, Group 1 鈥? Carcinogenic to humans. Formaldehyde, Group 1 鈥?
Carcinogenic to humans.
鈱? OSHA Regulated: Formaldehyde gas, potential carcinogen for exposures exceeding 0.5 ppm.
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?
Formaldehyde
According to its Tenth Report on Carcinogens, NTP states, 鈥淔ormaldehyde (gas) is reasonably
anticipated to be a human carcinogen based on limited evidence of carcinogenicity in humans and
sufficient evidence of carcinogenicity in experimental animals (IARC 1982, 1987, 1995).鈥?
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3. Hazard Identification (cont鈥檇.)
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.
Formaldehyde
Group 1 (Carcinogenic to humans; sufficient evidence of carcinogenicity). A working group of IARC has
determined that there is sufficient evidence that formaldehyde causes nasopharyngeal cancer in
humans, a rare cancer in developed countries.
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 help if irritation persists.
Skin Contact: Wood dust of certain species can elicit allergic contact dermatitis in sensitized individuals,
as well as mechanical irritation resulting in erythema and hives. Seek medical help if rash, irritation
or dermatitis persists.
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. Remove to fresh air. Seek medical help if persistent
irritation, severe coughing or breathing difficulty occurs. Provide medical personnel a copy of this
Material Safety Data Sheet.
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, sand
Autoignition Temperature: Variable [typically 400掳-500掳F (204掳-260掳C)].
Special Firefighting Procedures: None
Unusual Fire and Explosion Hazards: Depending on moisture content and more importantly, particle
diameter, wood dust may explode in the presence of an ignition source. A concentration of 40 grams
(40,000 mg) of dust per cubic meter of air is often used as the LEL for wood dusts.
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 products in purchased
form. Wood dust generated from sawing, sanding, drilling, or routing of these products 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.
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7. Handling and Storage
Precautions to be Taken In Handling and Storage: No special handling precautions are required for
products in purchased form. Avoid repeated or prolonged breathing of wood dust. These products
may release very small quantities of formaldehyde in gaseous form. Under foreseeable conditions of
use, these products release less than 0.050 ppm of formaldehyde gas in standard large chamber test
conditions. Store in well-ventilated, cool, dry place away from heat, flames, 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 required. 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. Goggles or safety glasses are
recommended when machining this 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 wood dust settles to avoid excessive accumulation of this combustible material. Minimize
blowdown or other practices that generate high airborne-dust concentrations.
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
OTHER 鈥? None
9. Physical/Chemical Properties
Physical Description: Laminated product with a slightly aromatic resinous odor and natural wood color.
The wood component of these products may consist of aspen, douglas fir, western hemlock,
southern yellow pine or yellow poplar.
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:
% Volatile by Volume [@ 70oF (21oC)]: 0
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10. Stability and Reactivity
鈱? Stable
Stability: Unstable
Conditions to Avoid: Avoid open flame. Product may ignite at temperatures in excess of 400掳F
(204掳C).
Incompatibility (Materials to Avoid): Avoid contact with oxidizing agents.
Hazardous Decomposition or By-Products: Thermal decomposition products include carbon
monoxide, carbon dioxide, aliphatic aldehydes, rosin acids, terpenes, and polycyclic aromatic
hydrocarbons.
鈱? Will not occur
Hazardous Polymerization: May occur
Sensitivity to Mechanical Impact: NAP
Sensitivity to Static Discharge: NAP
11. Toxicological Information
Toxicity Data: None available for product in purchased form. Individual component information is listed
below if available.
Components:
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). 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 hematopoletic systems, stomach, colon
or rectum with exposure to wood dust. Source: OSHA Regulated Hazardous Substances,
Government Institutes, Inc., February 1990.
Formaldehyde
These products may release very small quantities of formaldehyde in gaseous form. Under foreseeable
conditions of use, these products release less than 0.050 ppm of formaldehyde gas in standard large
chamber test conditions.
OSHA Hazard Rating = 3 for local and systemic acute and chronic exposure; highly toxic, irritation
studies: human skin, 150 ug/3 days, intermittent exposure produced mild results; human eye; 1
ppm/6 minutes produced mild results. Toxicity studies: human inhalation TCLO of 8 ppm reported,
but response not specified; human inhalation TCLO of 17 mg/m3 for 30 minutes produced eye and
pulmonary results; human inhalation TCLO of 300 ug/m3 produced nose and central nervous system
results; LC5O of (rat, inhalation) = 1,000 mg/m3, 30 minutes; LC5O (mice, inhalation) = 400 mg/m3, 2
hours.
Exposure to gaseous formaldehyde may cause temporary irritation to the nose and throat as well as lead
to respiratory disorders. However, in a thorough review of sensory/respiratory irritation studies of
formaldehyde from the standpoint of occupational exposure, an expert panel has observed exposure
up to concentrations of 0.3 ppm failed to produce irritation. With regard to respiratory disorders,
studies had concluded the threshold for long-term chronic pulmonary effects is between 0.4 and 3
ppm and for chronic obstructive pulmonary disease is 2 ppm. Pre-existing respiratory disorders may
be aggravated by exposure.
Epidemiology studies of workers exposed to formaldehyde have failed to consistently identify an
association between formaldehyde exposure and cancer. In animal studies, rats and mice exposed
to high levels of formaldehyde developed nasal cancer while hamsters did not. These exposure
levels are far above those levels normally found in the workplace. Formaldehyde is listed by IARC as
Carcinogenic to Humans (Group 1). A working group of IARC has determined that there is sufficient
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11. Toxicological Information (cont鈥檇.)
evidence that formaldehyde causes nasopharyngeal cancer in humans, a rare cancer in developed
countries. NTP included formaldehyde in the annual report on carcinogens. OSHA regulated
formaldehyde as a potential carcinogen for exposures exceeding 0.5 ppm.
Source: OSHA Regulated Hazardous Substances, Government Institutes, Inc., February 1990; Registry
of Toxic Effects of Chemical Substances (RTECS), National Institute for Occupational Safety and
Health (provided by Canadian Centre for Occupational Health and Safety, CCINFO May 1995.
Target Organs: None for product in purchased form.
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: If disposed of or discarded in its purchased form, incineration is preferable.
Dry land disposal is acceptable in most states. It is, however, 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 U.S. Department of
Transportation. Not listed as a hazardous material in Canadian Transportation of Dangerous Goods
(TDG) regulations.
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 on the TSCA inventory.
Formaldehyde (CAS# 50-00-0)
Paraffin wax (CAS# 8002-74-2)
CERCLA: The following ingredient is on the SARA Section 302 EHS, 304 EHS and CERCLA Lists:
Formaldehyde (CAS# 50-00-0)
DSL: The following ingredients are on the Canadian Domestic Substance List (DSL) inventory.
Formaldehyde (CAS# 50-00-0)
Paraffin wax (CAS# 8002-74-2)
OSHA: Wood products are not hazardous under the criteria of the federal OSHA Hazard Communication
Standard 29 CFR 1910.1200. However, formaldehyde emissions from this product and wood dust
generated by sawing, sanding or machining this product may be hazardous.
STATE RIGHT-TO-KNOW: This product is known to contain substances subject to the disclosure
requirements of:
California Prop 65 鈥? This product contains the following ingredient known to the State of California to
cause cancer:
Formaldehyde gas (CAS#50-00-0). Weyerhaeuser has evaluated formaldehyde emission rates from
its products and has found these rates to be below the 鈥渘o significant risk level鈥? that would require
product warnings.
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15. Regulatory Information (cont鈥檇.)
New Jersey 鈥? This product contains the following ingredient listed on New Jersey鈥檚 Environmental
Hazardous Substance List: Formaldehyde (CAS# 50-00-0)
Pennsylvania 鈥? This product contains the following ingredients listed on Pennsylvania鈥檚 Hazardous
Substance Lists:
Formaldehyde (CAS# 50-00-0)
Paraffin Wax (CAS# 8002-74-2)
Wood Dust
Minnesota 鈥? NAP
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:
An immediate (acute) health hazard: Yes
A delayed (chronic) health hazard: Yes
A fire hazard: No
A reactivity hazard: No
A sudden release hazard: No
FDA: NAP
WHMIS Ingredient Disclosure List: Formaldehyde (CAS# 50-00-0)
16. Additional Information
Date Prepared: 7/27/89
Date Revised: 01/04/2008
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
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
HMIS = Hazardous Materials Identification System
IARC = International Agency for Research on Cancer
IATA = International Air Transport Association
IMDG = International Maritime Dangerous Goods
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
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16. Additional Information (cont鈥檇.)
LFL = Lower Flammable Limit
MSHA = Mine Safety and Health Administration
NAP = Not Applicable
NAV = Not Available
NIOSH = National Institute for Occupational Safety and Health
NFPA = National Fire Protection Association
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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