SAUNDERS BROTHERS			FOREST INDUSTRIES
256 MAIN STREET				FAIR STREET
GREENWOOD, ME   04255			FRYEBURG, ME  04037

SECTION I - PRODUCT IDENTIFICATIONS

PRODUCT   NAME AND SYNONYMS:  Wood dust, Sawdust.

CAS NAME AND NUMBER:  N/A

CHEMICAL FAMILY:  All soft and hard woods, except Western Red Cedar.

CHEMICAL FORMULA:  N/A


SECTION II - HAZARDOUS INGREDIENTS AND PELs

COMPONENT	% (WT OR VOL)	OSHA TWA 		OSHA STEL

Wood dust.			100%		5 mg/m3		10 mg/m3

Wood dust,			100%		2.5mg/m3		      N/A
Western Red Cedar

DEFINITIONS

PEL:  Permissible Exposure Limits.

WT:  Weight

VOL:  Volume.

OSHA:  Occupational Safety and Health Administration

TWA:  Time Weighted Average.

STEL:  Short term exposure limit.

Mg/m3:  Milligrams of substance per cubic meter of air.

PEL DATA FROM:  Air Contaminants - Permissible Exposure Limits
			(Title 29 Code of Federal regulations Part 1910.1000)


SECTIONS III - PHYSICAL PROPERTIES

APPEARANCE AND ODOR:  light yellow to buff colored granular or finely powered 
Solid.  Odor is dependent on the source, species and the aging.

MOLECULAR WEIGHT:  N/A     BOILING POINT:  N/A    MELTING POINT:  N/A

VAPOR PRESSURE:  N/A	           	SPECIFIC GRAVITY (WATER = 1):  N/A

VAPOR DENSITY (AIR = 1): N/A  	        PERCENT VOLATILE (BY WEIGHT):  N/A

SOLUBILITY IN WATER:  Insoluble.     EVAPORATION RATE:  N/A


SECTION IV - FIRE AND EXPLOSION DATA

FLASH POINT:  N/A

FIRE AND EXPLOSION HAZARD:  The finely divided wood dust presents a dangerous fire and explosion hazard when exposed to heat or flame.  Partially burned dust is especially hazardous if dispersed in air.  The larger dusts present a moderate to dangerous fire and explosion when exposed to heat or flame.

FIRE EXTINGUISHING MEDIA:  Determined by surrounding fire.  Use a water spray to wet down wood dust to reduce likelihood of ignition or dispersion of dust into the air.  Remove burned or we dust to a open area after fire is out.  Avoid breathing hazardous vapors keep upwind.


SECTION V - REACTIVITY DATA

REACTIVITY:  Stable under normal temperatures and pressures.

INCOMPATIBILITIES:  Strong oxidizers, firm and explosion hazard.

DECOMPOSITION:  Thermal-oxidative degradation of wood produces irritation and toxic fumes and gases.

POLYMERIZTION:  Hazardous polymerization has not been reported to occur under normal temperatures and pressures.

CONITIONS TO AVOID:  Wood dust is extremely combustible.  Keep in a cool, dry place away from ignition sources.




SECTION VI - HEALTH HAZARD INFORMATION

EFFECTS OF OVEREXPOSURE:  Avoid prolonged or repeated breathing of wood dust in the air.  Repeated overexposure to wood dust can produce allergenic responses in sensitive individuals.  Avoid repeated or prolonged contact with the skin, which can also cause allergenic responses.  If allergy, such as dermatitis, asthma or bronchitis develop, it may be necessary to remove the sensitized worker from further exposure to wood dust.

PROBABLE ROUTES OF EXPOSURE:  Inhalation, skin contact.

EMERGENCY AND FIRST AID PROCEDURES

INHALATION:  Remove to fresh air.  If persistent irritations, sever coughing, breathing difficulties, or rash occur, get medical advice before returning to work where wood dust is present.

EYE CONTACT:  Flush with water to remove dust particles from the eye.  If irritation persists, get medical attention.

SKIN CONTACT:  If a rash, or persistent irritation or dermatitis occurs, get medical advice before returning to work where wood dust is present.


SECTION VII - TOXICITY DATA

TOXICITY:  Undetermined human carcinogen, (under study).  An excess risk of nasal adenocarcinoma has been reported in furniture and cabinet making industry.  This excess risk occurs mainly in workers exposed to wood dusts.  Some studies have suggested that the incidence of nasal cancers and Hodgkin's disease may be increased in workers in the lumber and sawmill (including logging), carpentry and joinery trades and the pulp and paper industries.  Wood dust is an eye and mucous membrane irritant and a skin sensitizer


SECTION VIII - SPECIAL PROTECTION INFORMATION

PERSONAL PROTECTIVE EQUIPMENT

PROTECTIVE GLOVE:  Recommended to reduce skin contact, except where moving machinery parts may expose fingers to hazards.

EYE PROTECTION:  Safety glasses or goggles.



RESPIRATORY PROTECTION:  Approved dust respirators will be required in all areas that exceed OSHA'S permissible exposure limits.  Respirators will also be available to anyone in lower exposure level areas.

OTHER PROTECTIVE EQUIPMENT

VENTILATION:  provide local exhaust to comply with Threshold Limit Values.


SECTION IX - SPILL AND LEAK PROCEDURES

STEPS TO BE TAKEN IN CASE MATERIAL IS RELEASED OR SPILLED:  Sweep up or vacuum up spills fro recovery or disposal.  Recommend you avoid blowing off equipment of machinery, as this will increase the exposure limit in the area.


SECTION X - SPECIAL PRECAUTIONS AND COMMENTS

PRECAUTIONS TO BE TAKEN IN HANDLING AND STORING:  Avoid hot, humid storage or where wood dust has come in contact with drying oils, paint solvents or cleaning thinners (spontaneous heating is possible).  Partially burned or scorched wood dust can be hazardous to store.

Avoid generation of explosive levels of wood dust in the air.

Follow good housekeeping practices; clean up areas where wood dust settles to avoid excessive accumulation of this combustible material.

Follow good hygienic practices.  Wash frequently, wear clean work clothing.








	MATERIAL SAFETY DATA SHEET 

	WOOD DUST	                                 Page 1 of 4