Sharp FO-4700 S H A R P, MATERIAL SAFETY DATA SHEET 1/2, Product Identification, Ingredients

S H A R P

Date Revised:

Date Issued :May. 28, 1999

MATERIAL SAFETY DATA SHEET (1/2)

MSDS No. B-1020

Section 1. Product Identification

Product : FO-47ND / DUNT-455BSCZZ (Toner Cartridge)

Section 2. Supplier's Name and Address

Sharp Corporation

22-22 Nagaike-cho, Abeno-ku, Osaka, Japan

Local suppliers are listed below. Please contact the nearest supplier for additional information.

(Country)	(Name and Telephone Number)
U.S.A.	Sharp Electronics Corporation
	Telephone number for information: 1-800-237-4277
	Emergency telephone number : 1-800-255-3924
Canada	Sharp Electronics of Canada Ltd.
	Telephone number for information: 905-890-2100
	Emergency telephone number : 1-800-255-3924

Section 3. Ingredients

Ingredients	CAS No.	Proportion		OSHA PEL	ACGIH TLV	Other Limits
Polyester resin	(NJ TSRN 361615-5042-P)	>90%		Not listed	Not listed	None
Carbon black	1333-86-4	1	- 5%	3.5 m g/m 3	3.5 m g/m 3	TWA(Austl) : 3 m g/m 3
Polyolefin wax	9003-07-0	1	- 5%	Not listed	Not listed	None
Polyolefin wax	25722-45-6	(TO TAL O F BO TH)		Not listed	Not listed	None
O rganic pigm ent	(NJ TSRN 361615-5025-P)	1	- 5%	Not listed	Not listed	None

Section 4. Hazardous Identification (Emergency Overview)

Toner is a fine, black powder possessing no immediate hazard. There are no anticipated carcinogenic effects from exposure based on animal tests performed using toner. When used as intended according to instructions, studies do not indicate any symptoms of fibrosis will occur.

Section 5.Health Hazard Data

Route(s) of Entry :		Inhalation?	Skin?	Ingestion?
		Yes	Yes(Eye contact)	Yes
Health Hazard :
Inhalation, LC50(g/m3 /4h) :		>0.74(Rats)* (This was the highest attainable concentration.)
Ingestion (oral),	LD50(mg/kg) :	>5000 (Rats) *
Dermal, LD50 (mg/kg) :		>2000 (Rats) *
Eye irritation :		Not an irritant (rabbits) *
Skin irritation :		Not an irritant (rabbits) *
Skin sensitizer :		No data available
Mutagenicity :		Negative * (AMES test)
		(* = Based on data for other products with similar ingredients)
Carcinogenicity :	In 1996 the IARC reevaluated carbon black as a G roup 2B carcinogen (possible human carcinogen).
	This classification is given to chem icals for which there is inadequate hum anevidence, but sufficient ani-

mal evidence on which to base an opinion of carcinogenicity. Theclassification is based upon the devel- opment of lung tum ors in rats receiving chronic inhalationexposures to free carbon black at levels that induce particle overload of the lung. Studiesperform ed in anim al m odels other than rats did not show any association between carbon black and lung tum ors. M oreover, a two-year cancer bioassay using a typical toner preparation containing carbon black dem onstrated no association between toner exposure and tum or developm ent in rats.

Chronic Effect : Prolonged inhalation of excessive dust m ay cause lung damage. It is attributed to “lung overloading”, a generic response to excessive am ounts of any dust retained in the lungs for a prolonged interval. Use of this product as intended does result in inhalation of excessive dust. In a study in rats by chronic inhala- tion exposure to a typical toner, a m ild to moderate degree of lung fibrosis was observed in 92% of rats in the high concentration (16m g/m 3 ) exposure group, and a minimal to m ild degree of fibrosis was noted in 22% of the anim als in the m iddle (4m g/m 3 ) exposure group. But no pulm onary change was reported in the lowest (1m g/m 3 ) exposure group, the m ost relevant level to potential hum an exposures.

176