E I DUPONT -- DELRIN ACETAL RESIN, 550SA NC010 
MATERIAL SAFETY DATA SHEET
NSN: 801000N015404
Manufacturer's CAGE: 18873 
Part No. Indicator: A 
Part Number/Trade Name: DELRIN ACETAL RESIN, 550SA NC010 
===========================================================================
                            General Information
===========================================================================
Company's Name: E. I. DUPONT DE NEMOURS & CO INC 
Company's Street: 1007 MARKET STREET 
Company's City: WILMINGTON 
Company's State: DE 
Company's Country: US 
Company's Zip Code: 19898 
Company's Emerg Ph #: 800-441-3637;800-424-9300(CHEMTREC) 
Company's Info Ph #: 800-441-7515 
Record No. For Safety Entry: 001 
Tot Safety Entries This Stk#: 001 
Status: SMJ 
Date MSDS Prepared: 21DEC88 
Safety Data Review Date: 24MAY95 
MSDS Preparer's Name: J B ARMITAGE 
Preparer's Company: SAME 
MSDS Serial Number: BKQCY 
Hazard Characteristic Code: N1 
===========================================================================
                     Ingredients/Identity Information
===========================================================================
Proprietary: NO 
Ingredient: POLYOXYMETHYLENE, POLYACETAL
Ingredient Sequence Number: 01 
CAS Number: 9002-81-7 
OSHA PEL: NOT APPLICABLE 
ACGIH TLV: NOT APPLICABLE 
-------------------------------------
Proprietary: NO 
Ingredient: ADDITIVES; ANTIOXIDANTS, LUBRICANTS AND STABILIZERS.
Ingredient Sequence Number: 02 
OSHA PEL: NOT APPLICABLE 
ACGIH TLV: NOT APPLICABLE 
===========================================================================
                     Physical/Chemical Characteristics
===========================================================================
Appearance And Odor: GRANULES OR POWDER WITH SLIGHT FORMALDEHYDE ODOR.
Melting Point: 342F,172C 
Specific Gravity: 1.42 
Solubility In Water: INSOLUBLE 
Percent Volatiles By Volume: N/A 
===========================================================================
                      Fire and Explosion Hazard Data
===========================================================================
Flash Point: 612F,322C 
Extinguishing Media: WATER, CO*2, FOAM, DRY CHEMICAL.
Special Fire Fighting Proc: USE NIOSH/MSHA APPROVED SCBA AND FULL
PROTECTIVE EQUIPMENT (FP N) FOR PROTECTION FROM FUMES OF FORMALDEHYDE.
Unusual Fire And Expl Hazrds: BURNS WITH A COLORLESS FLAME. DELRIN DUST
CLOUD IGNITION TERMPERATURE 440C.
===========================================================================
                              Reactivity Data
===========================================================================
Cond To Avoid (Stability): HEATING ABOVE 230C - FORMS FORMALDEHYDE.
Materials To Avoid: STRONG ACIDS AND BASES (DECOMPOSES FORMING
FORMALDEHYDE). STRONG OXIDIZING AGENTS.
Hazardous Decomp Products: CO & FORMALDEHYDE. FORMALDEHYDE IS CLASSIFIED
AS AN ANIMAL CARCIN, & HAS AN OSHA PERMISSIBLE EXPOS LIMIT OF (SUPP DATA)
Conditions To Avoid (Poly): NONE SPECIFIED BY MANUFACTURER.
===========================================================================
                            Health Hazard Data
===========================================================================
LD50-LC50 Mixture: NONE SPECIFIED BY MANUFACTURER. 
Route Of Entry - Inhalation: NO 
Route Of Entry - Skin: NO 
Route Of Entry - Ingestion: NO 
Health Haz Acute And Chronic: (ACUTE) INGEST: NOT A PROBABLE ROUTE OF
EXPOSURE. SKIN: NOT TOXIC. HOT POLYMER WILL CAUSE THERMAL BURNS. EYE: MECH
IRRIT. INHAL: FORMALDEHYDE IS HIGHLY IRRIT TO EYES & UPPER RESP TRACT.
(CHRONIC) FORMALDEHYDE RELEASE IN SM QTY DURING MELT PROCESSING IS
CLASSIFIED AS AN ANIMAL CARCINOGEN.
Carcinogenicity - NTP: NO 
Carcinogenicity - IARC: NO 
Carcinogenicity - OSHA: NO 
Explanation Carcinogenicity: NOT RELEVANT
Signs/Symptoms Of Overexp: SEE HEALTH HAZARDS.
Med Cond Aggravated By Exp: INDIVIDUALS WITH PREEXISTING DISEASES OF THE
LUNGS MAY HAVE INCREASED SUSCEPTIBILITY TO THE TOXICITY OF EXCESSIVE
EXPOSURE TO FORMALDEHYDE.
Emergency/First Aid Proc: IF EXPOSED TO FUMES FROM OVERHEATING OR
COMBUSTION, MOVE TO FRESH AIR. CONSULT A PHYSICIAN IF SYMPTOMS PERSIST.
FLUSH EYES WITH PLENTY OF WATER FOR AT LEAST 15 MINUTES. CONSULT A
PHYSICIAN IF SYMPTOMS PERSIST. IF MOLTEN POLYMER CONTACTS SKIN, COOL
RAPIDLY WITH COLD WATER. DO NOT ATTEMPT TO PEEL POLYMER FROM SKIN. OBTAIN
MEDICAL ATTN FOR THERMAL BURN.
===========================================================================
                   Precautions for Safe Handling and Use
===========================================================================
Steps If Matl Released/Spill: SWEEP UP TO PREVENT A SLIPPING HAZARD.
Neutralizing Agent: NONE SPECIFIED BY MANUFACTURER.
Waste Disposal Method: INCINERATION OR LANDFILL IN COMPLIANCE WITH
FEDERAL, STATE AND LOCAL REGULATIONS.
Precautions-Handling/Storing: DRY STORAGE. KEEP CNTNRS CLSD TO PVNT
CONTAM. OPEN CNTNRS ONLY IN WELL-VENT AREA. READ "SAFETY PREC TO OBSERVE
WHEN HANDLING MOLTEN (SEE OTHER PREC)
Other Precautions: HNDLG/STOR PREC: DELRIN ACETAL RESIN" E-49703 AND
"SAFETY PREC" IN MOLDING MANUAL E-09143, BEFORE USING DELRIN. AVOID
PROLONGED HEATING ABOVE MELTING POINT (178C).
===========================================================================
                             Control Measures
===========================================================================
Respiratory Protection: NIOSH/MSHA APPROVED RESPIRATOR APPROPRIATE FOR
EXPOSURE OF CONCERN (FP N) IF LOCAL EXHAUST VENTILATION DOES NOT KEEP
FORMALDEHYDE CONC BELOW 1 PPM.
Ventilation: LOCAL EXHAUST AT PROCESSING EQUIPMENT.
Protective Gloves: PROTECTIVE GLOVES. 
Eye Protection: CHEMICAL WORKERS GOGGLES (FP N). 
Other Protective Equipment: LONG SLEEVE COTTON SHIRT AND LONG PANTS.
Work Hygienic Practices: NONE SPECIFIED BY MANUFACTURER.
Suppl. Safety & Health Data: FL PT METH: ASTM 1929-62. HAZ DECOMP PRODS: 1
PPM (8-HR TWA), AND A SHORT TERM EXPOSURE LIMIT OF 2 PPM (15 MINUTE).
===========================================================================
                            Transportation Data
===========================================================================
Trans Data Review Date:   91274 
DOT PSN Code: ZZZ 
DOT Proper Shipping Name: NOT REGULATED BY THIS MODE OF TRANSPORTATION
IMO PSN Code: ZZZ 
IMO Proper Shipping Name: NOT REGULATED FOR THIS MODE OF TRANSPORTATION
IATA PSN Code: ZZZ 
IATA Proper Shipping Name: NOT REGULATED BY THIS MODE OF TRANSPORTATION
AFI PSN Code: ZZZ 
AFI Prop. Shipping Name: NOT REGULATED BY THIS MODE OF TRANSPORTATION
Additional Trans Data: NOT REGULATED FOR TRANSPORTATION
===========================================================================
                               Disposal Data
===========================================================================
===========================================================================
                                Label Data
===========================================================================
Label Required: YES 
Technical Review Date: 20MAY91 
Label Date: 20MAY91 
Label Status: G 
Common Name: DELRIN ACETAL RESIN, 550SA NC010 
Signal Word: CAUTION! 
Acute Health Hazard-Slight: X 
Contact Hazard-Slight: X 
Fire Hazard-Slight: X 
Reactivity Hazard-None: X 
Special Hazard Precautions: ACUTE: CAUSES RESPIRATORY TRACT IRRITATION.
AVOID BREATHING POWDER. KEEP CONTAINER CLOSED. USE WITH ADEQUATE
VENTILATION. CAUSES EYE IRRITATION. AVOID CONTACT WITH EYES. WASH
THOROUGHLY AFTER HANDLING. COMBUSTIBLE. KEEP AWAY FROM HEAT AND FLAME.
CHRONIC:HEATING ABOVE 230C CAUSES THE FORMATION OF FORMALDEHYDE. REFER TO
MSDS.
Protect Eye: Y 
Protect Skin: Y 
Protect Respiratory: Y 
Label Name: E I DUPONT DE NEMOURS & CO INC 
Label Street: 1007 MARKET STREET 
Label City: WILMINGTON 
Label State: DE 
Label Zip Code: 19898 
Label Country: US 
Label Emergency Number: 800-441-3637;800-424-9300(CHEMTREC)