LD50 LC50 Mixture:NONE SPECIFIED BY MANUFACTURER.
Routes of Entry: Inhalation:YES Skin:NO Ingestion:NO
Reports of Carcinogenicity:NTP:NO IARC:NO OSHA:NO
Health Hazards Acute and Chronic:NO CRYSTALLINE SIO2 HAS BEEN DETECTED
BY X-RAY DIFFRACTION. PROD CONSIDERED BIOLOGICALLY INERT. HOWEVER,
PARTICLES OF INGS MAY CAUSE MECH IRRIT OF EYES, SKIN, NASAL
PASSAGES. RECOMMEND USING LIMITS FO R CRYSTALLINE SILICA (QUARTZ)
WHERE DUST IS EVOLVED BY PROCESSING. ACUTE:IRRITATION FROM INHAL OF
DUST.(EFTS OF OVEREXP)
Explanation of Carcinogenicity:NOT RELEVANT
Effects of Overexposure:HLTH HAZ:PROD IS NORMALLY A SOLID. DUST MAY
IRRIT NASAL PASSAGES/EYES. FIBERS MAY CAUSE ITCHING OF SKIN.
CHRONIC:SILICOSIS IS POSSIBLE EFT OF LONG-TERM EXPOS TO CRYSTALLINE
SILICA DUST. SYMPTOMS ARE S HORTNESS OF BREATH, DRY COUGH,
CHARACTERISTIC X-RAYS.
Medical Cond Aggravated by Exposure:ANYONE W/HISTORY OF BREATHING
DIFFICULTY SHOULD AVOID EXPOSURE TO DUST. DUST MAY BE PRESENT
INSIDE PACKAGING.
======================= First Aid Measures =======================
First Aid:NONE USUALLY REQD/ANTICIPATED. EYE:FLUSH W/WATER FOR AT LST
15 MINUTES. SKIN:IF IRRIT OCCURS, WASH W/SOAP & WATER. CHANGE OF
OUTER CLOTHING MAY BE NEC. INHAL:REMOVE TO FRESH AIR. SUPPORT
BREATHING (GI VE ARTF RESP/O*2) . INGEST:NOT APPLICABLE. SILICA IS
PERMITTED IN FOOD & IS A COMMON AIR CONTAMINANT.
===================== Fire Fighting Measures =====================
Extinguishing Media:USE MEDIA SUITABLE FOR SURROUNDING FIRE .
NONFLAMMABLE.
Fire Fighting Procedures:NONE
Unusual Fire/Explosion Hazard:NONE
Spill Release Procedures:MATERIAL USUALLY SUPPLIED IN SOLID FORM. ANY
DUST CREATED BY GRINDING, ETC, SHOULD BE TREATED AS A NUISANCE
DUST.
Neutralizing Agent:NONE SPECIFIED BY MANUFACTURER.
====================== Handling and Storage ======================
Handling and Storage Precautions:HAZARDOUS DUSTS PRODUCED WHEN
MACHINED, FILED OR GROUND. AMORPHOUS SILICA DUST CAN AFFECT LUNGS
IF INHALED IN EXCESSIVE AMOUNTS.
Other Precautions:NONE SPECIFIED BY MANUFACTURER.
Respiratory Protection:NONE REQUIRED FOR HANDLING SOLID MATERIAL.
PROTECTIVE MEASURES DURING MAINTENANCE OF CONTAMINATED EQUIPMENT:
NIOSH/MSHA APPROVED DUST/MIST RESPIRATOR REQUIRED IN CASE OF DUST
COLLECTOR FAILURE OR DURI NG MAINTENANCE.
Ventilation:LOCAL & AREA DUST CONTROL EQUIP IS NEC WHERE MACHINING
OPERATIONS ARE CARRIED OUT. NO CONTROLS NEC FOR HNDLG SOLID MATL.
Eye Protection:CHEMICAL WORKERS GOGGLES .
Other Protective Equipment:RUBBER GLOVES W/COTTON LINERS REC TO PREVENT
CONTAM OF PRODUCT. THESE ARE NOT FOR PERSONAL PROTECTION.
Work Hygienic Practices:NONE SPECIFIED BY MANUFACTURER.
Supplemental Safety and Health
NONE SPECIFIED BY MANUFACTURER.
Waste Disposal Methods:APPROVED LANDFILL SITE. NO CONTAINER
REQUIREMENT. DISPOSE OF ALL WASTES I/A/W FEDERAL, STATE & LOCAL
REGULATIONS.
Disclaimer (provided with this information by the compiling agencies):
This information is formulated for use by elements of the Department
of Defense. The United States of America in no manner whatsoever,
expressly or implied, warrants this information to be accurate and
disclaims all liability for its use. Any person utilizing this
document should seek competent professional advice to verify and
assume responsibility for the suitability of this information to their
particular situation.