SDS
8. Exposure Control Measures/Personal Protection (cont’d.)
OTHER PROTECTIVE CLOTHING OR EQUIPMENT – Outer garments which cover the arms may be
desirable in extremely dusty areas.
WORK/HYGIENE PRACTICES – Follow good hygienic and housekeeping practices. Clean up areas
where wood dust settles to avoid excessive accumulation of this combustible material. Minimize
compressed air blowdown or other practices that generate high airborne-dust concentrations.
9. Physical/Chemical Properties
Appearance: Light to dark colored, granular solid, saw dust, wood chips, logs and untreated lumber (all
species and grades). Color and odor are dependent on the wood species and time since any wood
dust was generated.
Odor/Odor Threshold(s):
NAV
pH:
NAP
Melting/Freezing Point:
NAP
Boiling Point (@ 760 mm Hg) and Range:
NAP
Flash Point:
NAP
Evaporation Rate:
NAP
Flammability:
NAV
Lower/Upper Explosive Limits:
40,000 mg of dust per cubic meter of air is often used as
the LEL for wood dusts.
Vapor Pressure (mm Hg):
NAP
Vapor Density (air = 1; 1 atm):
NAP
Relative Density:
NAP
Solubility:
<0.1
Partition Coefficient (n-octonal/water):
NAP
Autoignition Temperature:
Variable [typically 400°-500°F (204°-260°C)]
Decomposition Temperature:
NAV
Viscosity:
NAP
Other Properties:
NAP
10. Stability and Reactivity
Reactivity: NAP
Hazardous Polymerization:
May occur Will not occur
Stability: Unstable Stable
Conditions to Avoid: Avoid all sources of ignition.
Incompatibility (Materials to Avoid): Avoid contact with oxidizing agents and drying oils.
Hazardous Decomposition or By-Products: Thermal decomposition (i.e. smoldering, burning) can
release carbon monoxide, oxides of nitrogen, carbon dioxide, terpenes and polycyclic aromatic
hydrocarbons. Natural decomposition of organic materials such as wood may produce toxic gases
and an oxygen deficient atmosphere in enclosed or poorly ventilated areas. Spontaneous and rapid
hazardous decomposition will not occur.
Sensitivity to Static Discharge: Airborne wood dust may be ignited by a static discharge depending on
airborne concentrations, particle size and moisture content.
Weyerhaeuser SDS WC S335-12 (M)
Page 5 of 9 Rev. 09/11/2015