Material Safety Data Sheet
H2-F (Bifenthrin) Treated TJI Joist
Weyerhaeuser Company Emergency Phone: (02) 4964-0888
21 Martin Drive Fax: (02) 4964-0891
Tomago NSW 2322
Statement of Hazardous Nature: In its intact state this product is not classified as a hazardous substance
according to the criteria of Worksafe Australia.
Wood dust that may be generated by sawing or otherwise processing this product is classified as a hazardous
substance according to the criteria of Worksafe Australia.
Important Notice: This Material Safety Data Sheet (MSDS) is issued by Trus Joist, A Weyerhaeuser Business, in
accordance with Worksafe Australia guidelines. As such, the information contained within this document must not be
altered, deleted or added to. Trus Joist will issue an updated MSDS when there is a change in product specifications
and/or Worksafe regulations or guidelines. Trus Joist will not accept any responsibility for any changes made to its
MSDS in content by any other person or organization.
1. Product Identification
Product Name H2-F (Bifenthrin) Treated TJI庐 Joist
Other Synonyms 鈥淗2-F Treated I-beam鈥?, 鈥淗2-F Treated I-joist鈥?, 鈥淭reated I-beam鈥?,
鈥淭reated I-joist鈥?
Manufacturer鈥檚 Product Code TJI庐 /70 , TJI庐 /90
UN Number None allocated
Dangerous Goods Class None allocated
Subsidiary Risk None allocated
Hazchem Code None allocated
Poisons Schedule None allocated
Major Recommended Use H2-F (Bifenthrin) Treated TJI庐-joists are predominantly used in
floor and roof systems of residential construction South of the
Tropic of Capricorn
Physical Description/ Properties The product is blue in color (code requirement signifying treatment
used and allowable geography for use). The blue may fade over
time, especially with exposure to UV light.
Appearance Wood flange and plywood web material is bonded together using
an adhesive to create a wooden I-joist. Once the manufacturing
process is complete, adhesives used to manufacture the plywood
(Phenol-formaldehyde) and the I-joist (MDI) are fully cured. No
detectable levels of isocyanate or formaldehyde are present in the
product as purchased. H2-F (Bifenthrin) treated TJI庐 Joists will
appear blue in color and bear an ink stamp describing treatment
location, type and allowable end use.
Treated TJI庐 Joists may have a slight sweet smell, which will
Odour
dissipate soon after treatment. When sawn, Treated TJI庐 Joists
may have the odour of the wood species used in the raw
materials.
Boiling Point (oC) Not applicable
Melting Point (oC) Not applicable
Vapour Pressure Not applicable
Flash Point Not applicable
Flammability Limits in Air Not flammable under normal conditions of use. See 鈥淔ire and
Explosion Hazard鈥? section
Specific Gravity (water =1) Variable; depends on wood species and moisture
pH (1% aqueous solution) Not Applicable
Variable; typically 204鈥?260o C
Auto Ignition Temperature
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Ingredients:
Substance/Chemical CAS No. Proportion by Weight (%)
Wood None 90-99
Resin Solids: Phenol- 9016-87-9 1鈥?9
formaldehyde1
EPI - Emulsion polymer None <2
isocyanate (MDI) adhesive2
Bifenthrin3 82657-04-3 <1
1
This product contains less than 0.05% free formaldehyde when manufactured.
2
This ingredient contains synthetic rubber emulsion and isocyanate. During the manufacturing process, the raw material is
converted to urea and a urethane polymer. No detectable levels of isocyanate (MDI) are present in the product as purchased.
庐
3
Bifenthrin is the active ingredient in a water-based insecticide solution used to treat TJI Joist for protection against subterranean
termite and borer damage. Bifenthrin is a synthetic pyrethroid insecticide and is contained in Treated TJI庐 Joist at a target level of
0.02% m/m.
2. Health Hazard Information
Health Effects:
庐
Treated TJI Joists in their manufactured form are not classified as hazardous. The primary health hazard posed by
these products is thought to be due to exposure to wood dust created by sawing or otherwise machining the product. A
comparatively minor health hazard is posed by the insecticide, Bifenthrin, with which these products are treated.
Handling Treated TJI庐 Joists may result in splinters. See 鈥淧recautions for Use鈥? section for methods to mitigate health
effects.
The following health effects are based on current research and knowledge of Bifenthrin and wood dust created by
sawing or otherwise processing wood fiber.
Acute Health Effects:
Swallowed: Swallowing wood dust may result in abdominal discomfort.
Eye: Wood dust may be irritating to the eyes causing discomfort and redness.
Skin: Wood dust may irritate skin. Allergic contact dermatitis may occur. Bifenthrin may produce skin
irritation in sensitive individuals, but should be transient.
Inhaled: Wood dust may irritate the throat and lungs. Asthma may occur.
Chronic Effects:
Repeated inhalation of elevated levels of wood dust, depending on the species, may cause allergic contact dermatitis
and respiratory sensitization. Prolonged exposure to wood dust has been reported by some observers to be
associated with nasal cancer. However, if the work practices noted in this MSDS are followed, and exposure to
airborne dusts is kept low, no acute or chronic health effects are anticipated.
Wood dust is classified as a Group 1 carcinogen by IARC. Group 1 carcinogens are carcinogenic to humans, or there
is 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.
Long-term studies on Bifenthrin showed that it was non-carcinogenic and that it did not cause reproductive toxicity or
teratogenicity (malformations in the developing fetus).
First Aid:
Ingested 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. Get medical help if irritation persists.
Skin Contact In sensitized individuals, wood dust of certain species can elicit allergic contact dermatitis,
as well as mechanical irritation resulting in erythema and hives. Bifenthrin may produce skin
irritation in sensitive individuals, but should be transient. Remove any contaminated clothing
and wash skin thoroughly with soap and water. Get medical help if rash, irritation, or
dermatitis persists. If concerned, contact a doctor or the nearest Poisons Information
Centre.
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Inhaled Wood dust may cause unpleasant obstruction in the nasal passages, resulting in dryness of
nose, dry cough, sneezing, or headaches. Remove to fresh air. Get medical help if
persistent irritation, severe coughing, or breathing difficulty occurs.
Advice to Doctor Treat symptomatically
3. Precautions for Use
Exposure Standards
鈥? 鈥?
Wood Dust 5 mg/m3 time weighted average (TWA) measured as inspirable particulate
鈥?
(softwood) 10 mg/m3 short term exposure limit (STEL)
鈥? sensitizing to skin and respiratory tract
鈥? 鈥?
Bifenthrin No exposure limit has been assigned to Bifenthrin by NOHSC Australia
All work with Treated TJI庐 Joists must be carried out in such a way as to minimize exposure
Engineering Controls
to wood dust. Under factory conditions, sawing, drilling, or sanding of Treated TJI庐 Joists
should be done with equipment fitted with local exhaust ventilation devices capable of
removing dust at the source. Measures should be taken to eliminate the build up of static
electricity.
Avoid breathing sawdust from Treated TJI庐 Joists. Wear a P1 or P2 respirator suitable for
Respiratory Protection
particulate and conforming with Australian Standards AS/NZS 1715 and AS/NZS 1716 when
exposed to dust. These standards should be followed in the selection, fit testing, use, and
storage and maintenance of the respirators.
Skin Protection Wear industrial impervious gloves (AS 2161) especially when handling product still wet after
treatment, loose comfortable clothing and boots. Long-sleeved shirts and long trousers are
recommended to prevent skin irritation. Wash skin with mild soap and water after working
with Treated TJI庐 joists. Check regularly for holes and cracks in gloves and replace if
necessary. Launder work clothes regularly and separately from other clothing.
Eye Protection Non-fogging goggles or safety glasses (AS/NZS 1337) should be worn if there is a risk of
wood dust getting into eyes.
Flammability Not flammable under normal conditions of use, but is combustible and will sustain a fire.
4. Safe Handling Information
鈥?
Precautions to Be Taken No special handling precautions are required for products in purchased form. Avoid
in Handling and Storage repeated or prolonged breathing of wood dust.
鈥? The phenol-formaldehyde adhesive used to manufacture the plywood contained in
this product may release very small quantities of formaldehyde in gaseous form.
Under foreseeable conditions of use, these products release less than 0.050 ppm in
standard large-chamber test conditions.
鈥? MDI adhesive releases no formaldehyde. Store in well-ventilated, cool, dry place
away from open flame.
鈥?
Spills and Disposal If disposed of or discarded in its purchased form, incineration is preferable. Dry land
disposal is an acceptable alternate means of disposal. It is, however, the user鈥檚
responsibility to follow applicable regulations.
鈥? Wood dust generated from machining Treated TJI庐 Joists 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.
鈥? Do not allow treated wood to enter drains, streams or other waterways. Although
unlikely to leach out of wood, Bifenthrin is toxic to aquatic organisms.
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Fire and Explosion Hazard:
Ignitability Index 14
Spread of Flame Index 7
Heat Evolved Index 7
3 鈥? Burning or smoldering Treated TJI庐 Joists can generate carbon dioxide and other
Smoke Developed Index
pyrolisis products typical of burning wood. Depending on moisture content and more
importantly, particle diameter, wood dust may explode in the presence of an ignition
source. An airborne dust concentration of 40 g/m3 (40,000 mg/m3) is often used as the
LEL for wood dusts. Use water or dry chemical fire extinguishers or sand to extinguish
fires.
Smoking Smoking should be restricted in storage and work areas.
5. Contact Information
Trus Joist 鈥? A Weyerhaeuser business
Mailing address: 21 Martin Drive, Tomago NSW 2322
Phone: (02) 4964-0888
Fax: (02) 4964-0891
6. Additional Information
Date Prepared: 06/25/2004
Prepared By: Corporate Environment Health and Safety
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 whether this information is suitable for their applications
and to follow safety precautions as necessary. The user has the responsibility to make sure that this sheet is the most
up-to-date issue.
Definition of Acronyms:
CAS# Chemical Abstracts Service Registry Number
LEL Lower Explosive Limit
IARC International Agency for Research on Cancer
NIOSH National Institute for Occupational Safety and Health
OSHA Occupational Safety and Health Administration
PEL Permissible Exposure Limit
STEL Short-Term Exposure Limit (15 minutes)
TLV Threshold Limit Value
TWA Time-Weighted Average (8 hours)
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