SDS

NORBORD OSB BOARD Page 4 of 11
Version: 1.3 Revision Date: 07/21/2016
STEL-TWA
1
(Total Dust)
10 mg/m
3
10 mg/m
3
TWAEV
(Certain Hardwoods
Total Dust)
1 mg/m
3
Cured Phenol Formaldehyde
Adhesive Resin Solid.
(less than 0.01% of free
formaldehyde)
None Established None Established
None
Established
None Established
Cured Polymeric
Diphenylmethane Diisocyanate
(PMDI) Adhesive
(Once pressed these wood
panels do not contain free or
unreacted MDI)
None Established None Established
None
Established
None Established
Formaldehyde
2
TWA/Ceiling
0.3 ppm
PEL
0.75 ppm
STEL
2.0 ppm
(See 29CFR1910.1048)
TWAEV/Ceiling
2.0 ppm
STEV
1 ppm
Ceiling
1.5 ppm
Heat Reflecting Foil (Solarbord
Only)
None Established None Established
None
Established
None Established
Slack Wax (as Paraffin Wax
Fume)
TW
A
2 mg/m
3
Not Regulated
TWAEV
2 mg/m
3
TWAEV
2 mg/m
3
Zinc Borate (as inorganic
compounds)
TWA
(Inhalable Dust)
2 mg/m
3
PEL-TWA
(Total Dust as PNOR)
15 mg/m
3
TWAEV
(Total Dust as
PNOR)
10 mg/m
3
TWAEV
2 mg/m
3
1
In AFI ‐ CIO v. OSHA, 965 F. 2d 962 (11th Cir. 1992), the court overturned OSHA’s 1989 Air Contaminants Rule, including the
specific PELs for wood dust that OSHA had established at that time. The 1989 PELs were: TWA ‐ 5.0 mg/m
3
; STEL(15 MIN.) ‐
10.0 mg/m
3
(all soft and hard woods, except Western Red Cedar); Western Red Cedar; TWA ‐ 2.5 mg/m
3
.
Wood dust is now officially regulated as an organic dust under the Particulates Not Otherwise Regulated (PNOR) or Inert or
Nuisance Dust Categories at PELs noted under Section 8 of this MSDS. However, a number of states have incorporated
provisions of the 1989 Standard in their state plans. Additionally, OSHA indicated that it may cite companies under the
OSH Act General Duty Clause under appropriate circumstances for non‐compliance with the 1989 PELs.
2
The OSHA ‘Action Level’ for Formaldehyde is 0.5 ppm based on an 8-hour TWA under 29 CFR 1910.1048. This level is not
achieved under normal occupational exposures to these products. The British-Colombia formaldehyde Occupational Health and
Safety Regulation’s 8-hour TWA is 0.3 ppm. The formaldehyde 8-hour TWA exposure limits under the British-Columbia, Alberta,
Quebec and Ontario Occupational Health and Safety Act have the "As Low As Reasonably Achievable" (ALARA) designation.
Engineering Controls
For reducing exposure to below recommended exposure limits, methods include
mechanical ventilation using diluting or control of process, and process conditions
or personal enclosure. System design should consider nature of contaminants and
any explosive characteristics. Eyewash stations are recommended.
Personal Protection
Eyes Not required if no transformation is performed on the product.
AVOID CONTACT WITH EYES.
Use safety glasses with side shields or dust resistant safety goggles if manual or
mechanical cutting or abrasion processes is performed on the product.
Body
Not required if no transformation is performed on the product.
AVOID CONTACT WITH SKIN.
Coveralls or long-sleeved shirt is recommended if manual or mechanical cutting or
abrasion processes is performed on the product.
Remove and wash dust contaminated clothing before reuse.
Respiratory
Not required if no transformation is performed on the product.
AVOID BREATHING DUST.
When engineering controls and work practices are not effective in controlling
exposure to recommended exposure limits, wear suitable respiratory protection. If
respirator required, use an appropriate NIOSH/MSHA approved dust respirator
N95 or higher.