Material Safety Data Sheet
Copper-Azole Pressure-Treated Parallam 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 Prepared Date: October 10, 2005
1. Product Identification
Product Manufacturing Location(s)
Copper-Azole Pressure-Treated Wood and Lumber USA: Colbert, GA
Synonyms: Copper-Azole Treated Laminated Lumber, Copper-Azole Treated Wood
2. Hazardous Ingredients/Identity Information
Name CAS# Percent Agency Exposure Limits Comments
PEL-TWA 15 mg/m3
Wood None >85 OSHA Total dust
PEL-TWA 5 mg/m3
(softwood) OSHA Respirable dust fraction
TLV-TWA 0.5 mg/m3
ACGIH Inhalable, Western red
cedar
1 mg/m3
ACGIH TLV-TWA Inhalable, All other
species
A
5 mg/m3
PEL-TWA Softwood or hardwood
Recommended
total dust
A
PEL-STEL 10 mg/m3 Softwood or hardwood
Recommended
total dust
Phenol None <12 - 15 OSHA PEL-TWA 0.75 ppm Free gaseous
formaldehyde formaldehyde
resin solids B, C OSHA PEL-STEL 2 ppm Free gaseous
formaldehyde
ACGIH TLV-Ceiling 0.3 ppm Free gaseous
formaldehyde
PEL-TWA 1 mg/m3
Basic Copper 12069-69-1 <2 OSHA Dusts and mists
Carbonate (as Cu)
TLV-TWA 1 mg/m3
ACGIH Dusts and mists
(as Cu)
Tebuconazole 107534-96-3 <1 None None None
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.
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3. Hazard Identification
Appearance and Odor: Copper-Azole Pressure-Treated Parallam PSL is green in color consisting of
southern yellow pine with a woody odor.
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:
Skin: Dust
Inhalation: Dust
Eye: Dust
Medical Conditions Generally Aggravated by Exposure: Wood dust may aggravate pre-existing
respiratory conditions or allergies.
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 wood dust has been reported by some observers to be associated with nasal
cancer.
Carcinogenicity Listing:
NTP: Wood dust and Formaldehyde
IARC Monographs: Wood dust and Formaldehyde
OSHA Regulated: Formaldehyde gas
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?
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.
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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-500oF (204o-260oC)].
Special Firefighting Procedures: Use water to wet down wood dust to reduce the likelihood of ignition
or dispersion of dust into the air. Remove burned, charred or wet dust to open, secure area after fire
is extinguished.
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. An airborne 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 product in purchased
form. Wood dust 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 allowable exposure limits may be exceeded.
7. Handling and Storage
Precautions to be Taken In Handling and Storage: Avoid repeated or prolonged breathing of wood
dust. Avoid eye contact and repeated or prolonged contact with skin. Change protective clothing and
gloves when signs of contamination appear. 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 in standard large chamber test conditions. When storing product,
the material should be kept off the ground. Store in a cool, dry place and away from heat, flames,
sparks and other sources of ignition.
8. Exposure Control Measures, Personal Protection
Personal Protective Equipment:
RESPIRATORY PROTECTION 鈥? A NIOSH-approved respirator is recommended when machining,
sanding and/or sawing this product or when allowable exposure limits may be exceeded.
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8. Exposure Control Measures, Personal Protection (cont鈥檇.)
PROTECTIVE GLOVES 鈥? Leather gloves are recommended to minimize potential mechanical irritation
from handling dry product. Rubber gloves are recommended when handling wet product.
EYE PROTECTION 鈥? Not applicable for product in purchased form. Goggles or safety glasses are
recommended when machining this product and in areas with high dust levels.
OTHER PROTECTIVE CLOTHING OR EQUIPMENT 鈥? Outer garments may be desirable in extremely
dusty areas. If preservatives and/or wood dust accumulate on clothes, launder before reuse. Wash
work clothes separately from other household clothing.
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. Wash hands
thoroughly with soap and water before eating, drinking, toileting or using tobacco products and avoid
direct hand to mouth contact with soiled hands.
Ventilation:
LOCAL EXHAUST 鈥? Provide local exhaust ventilation 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? Self-contained breathing apparatus (SCBA) recommended when fighting fire.
OTHER 鈥? NAP
9. Physical/Chemical Properties
Physical Description: Copper-Azole Pressure-Treated Parallam PSL is green in color consisting of
southern yellow pine with a woody odor.
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:
NAP
Odor Threshold:
NAP
pH:
Insoluble
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 [@ 70掳 F (21掳C)]: NAP
10. Stability and Reactivity
Stability: Unstable Stable
Conditions to Avoid: Avoid open flame. Product may ignite at temperatures in excess of 400oF
(204oC).
Incompatibility (Materials to Avoid): Avoid contact with strong acids and oxidizing agents.
Hazardous Decomposition or By-Products: Thermal decomposition products include oxides of
carbon, nitrogen and copper as well as aliphatic aldehydes, resin acids, terpenes, and polycyclic
aromatic hydrocarbons. Copper (metal) residue may remain in the ash if the wood is burned.
Hazardous Polymerization: May occur Will not occur
Sensitivity to Mechanical Impact: NAP
Sensitivity to Static Discharge: NAP
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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 for wood dust = 3.3; that is, moderately toxic with a probable oral lethal dose to
human beings 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.
Formaldehyde
OSHA Hazard Rating = 3 for local and systemic acute and chronic exposures; 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; LC50 (rat, inhalation) = 1,000 mg/m3, 30 minutes; LC50 (mice, inhalation) = 400 mg/m3, 2
hours. 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).
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 have 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 classified by
IARC as carcinogenic to humans (Group 1). 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. NTP included formaldehyde in the annual report on carcinogens. OSHA
regulates formaldehyde as a potential carcinogen for exposures exceeding 0.5 ppm.
Copper-Azole
Oral LD50 (male rat): 741 - 760 mg/kg. Oral LD50 (female rat): 650 鈥? 651 mg/kg. Dermal LD50 (rat):
>2020 mg/kg. Ames Test: negative. Source: Tanalith E Copper-based Wood Preservative [Copper-
Azole concentrate] MSDS published by Koppers Arch Wood Protection (Aust) Pty Limited.
A human health risk assessment evaluated copper-azole exposure potential in occupational (adult
builders) and residential/playground (adult handlers and children) populations and concluded that 鈥渘o
adverse health effects are expected鈥? and that 鈥渘one of the exposures to azole [tebuconazole] or
copper evaluated pose a potential health risk鈥?. Cancer risks were not assessed in this study
because, according to the U.S. Environmental Protection Agency, neither tebuconazole or copper is
a known or probable human carcinogen. Source: Executive Summary 鈥? Assessment of Potential
Human Health Risks Associated with Exposure to Copper Tebuconazole-Treated Wood. July 10,
2003. Gradient Corporation.
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11. Toxicological Information (cont鈥檇.)
Basic Copper Carbonate
Oral LD50 (bird, domestic): 900 mg/kg. Oral LD50 (rabbit): 159 mg/kg. Oral LD50 (rat): 1,350 mg/kg.
Oral LDLo (duck): 900 mg/kg. Oral LDLo (pigeon): 1,000 mg/kg. Source: National Institutes of
Health, U.S. National Library of Medicine, Specialized Information Services.
Tebuconazole
Oral LD50 (bird, domestic): 1,000 mg/kg. Oral LD50 (rabbit): 1,000 mg/kg. Oral LD50 (rat): 3,352
mg/kg. Dermal LD50 (rat): 5,000 mg/kg. Source: National Institutes of Health, U.S. National Library
of Medicine, Specialized Information Services. Tebuconazole is listed by the U.S. Environmental
Protection Agency as a Group C 鈥? Possible Human Carcinogen. Source: U.S. EPA, Office of
Pesticide Programs. List of Chemicals Evaluated for Carcinogenic Potential (5/10/2002). OPP,
Washington, DC.
Target Organs: None
12. Ecological Information
Environmental Fate: No information available at this time.
Environmental Toxicity: Copper-Azole treated wood is non-phytotoxic.
Source: Tanalith E Treated Timber MSDS published by Koppers Arch Wood Protection (Aust) Pty
Limited.
13. Disposal Considerations
Waste Disposal Method: If disposed of or discarded in its purchased form, ordinary trash collection or
burial is acceptable in most states. Do not burn treated wood in open fires, stoves, fireplaces, or
residential boilers because toxic chemicals may be produced in the smoke and ash. Treated wood
from commercial or industrial use (for example, construction sites) may be burned only in commercial
or industrial incinerators or boilers in accordance with federal, state, and local regulations. Do not
use treated wood as a compost or mulch. This product is typically not considered a hazardous
waste, but State-run waste programs may be more stringent. Check with your local or state
regulators prior to disposal.
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 ingredient is on the TSCA inventory:
Formaldehyde (CAS# 50-00-0)
CERCLA: The following ingredient is on the SARA Section 302 and 304 EHS and CERCLA Lists:
Formaldehyde (CAS# 50-00-0)
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15. Regulatory Information (cont鈥檇.)
DSL: The following ingredient is on the Canadian Domestic Substance List (DSL) inventory:
Formaldehyde (CAS# 50-00-0)
Basic Copper Carbonate (CAS# 12069-69-1)
OSHA: Wood products are not hazardous under the criteria of the federal OSHA Hazard Communication
Standard 29 CFR 1910.1200. However, wood dust generated by sawing, sanding or machining this
product may be hazardous. Workplace exposure to formaldehyde is specifically regulated under 29
CFR, 1910.1048.
STATE RIGHT-TO-KNOW:
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 鈥渟ignificant risk level鈥? that would require product
warnings.
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)
Wood Dust (CAS# NAP)
Minnesota 鈥? Minnesota Statutes, 1984, Sections 144.495 and 325F.181 do not apply to this product.
These statues apply only to plywood, particleboard and MDF and other products manufactured with urea-
formaldehyde resins.
SARA 313 Information: To the best of our knowledge, 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
"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)
Basic Copper Carbonate (CAS# 12069-69-1)
16. Additional Information
Date Prepared: 12/30/2004
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 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.
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16. Additional Information (cont鈥檇.)
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
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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