AMERICAN STONE-MIX INC -- TOP N BOND  -- 5610-00N070694
<pre>=====================  Product Identification  =====================

Product ID:TOP N BOND
MSDS Date:03/04/1991
FSC:5610
NIIN:00N070694
=== Responsible Party ===
Company Name:AMERICAN STONE-MIX INC
Address:8320 BELLONA AVENUE
City:TOWSON
State:MD
ZIP:21204-2012
Country:US
Info Phone Num:301-296-6770
Emergency Phone Num:301-296-6770
Preparer's Name:ED P WEILL
CAGE:AMERI
=== Contractor Identification ===
Company Name:AMERICAN STONE-MIX INC
Address:8320 BELLONA AVENUE
Box:City:TOWSON
State:MD
ZIP:21204-2012
Country:US
Phone:301-296-6770
CAGE:AMERI

=============  Composition/Information on Ingredients  =============

Ingred Name:PORTLAND CEMENT
CAS:65997-15-1
RTECS #:VV8770000
Fraction by Wt: 10-33%
OSHA PEL:50 MPPCF
ACGIH TLV:10 MG/M3 TDUST

Ingred Name:SILICA, CRYSTALLINE - QUARTZ
CAS:14808-60-7
RTECS #:VV7330000
Fraction by Wt: 67-90%
OSHA PEL:SEE TABLE Z-3
ACGIH TLV:0.1 MG/M3 RDUST

Ingred Name:OTHER PREC: DUSTY. DO NOT BEAT DUST FROM CLTHG. MFR RECS
    SMKNG BE PROHIBITED IN ALL AREAS WHERE RESPS MUST BE (ING 4)
RTECS #:9999999ZZ

Ingred Name:ING 3: USED. WARN EMPLOYEES BY POSTING & OTHER MEANS OF HAZ
    & OSHA PREC TO BE USED. PROVIDE TRAINING FOR (ING 5)
RTECS #:9999999ZZ

Ingred Name:ING 4: YOUR EMPLOYEES ABOUT THE OSHA PRECAUTIONS.
RTECS #:9999999ZZ

Ingred Name:RESP PROT: RESP, EXCEPT SINGLE-USE/QUARTER-MASK RESP. ANY
    FUME RESP/HIGH EFFICIENCY PARTICULATE FILTER RESP. ANY (ING 7)
RTECS #:9999999ZZ

Ingred Name:ING 6: SUPP-AIR RESP. ANY SCBA. 50X0.1MG/M3/LESS: HIGH
    EFFICIENCY PARTICULATE FILTER RESP W/FULL FACEPIECE. ANY (ING 8)
RTECS #:9999999ZZ

Ingred Name:ING 7: SUPP-AIR RESP W/FULL FACEPIECE, HELMET/HOOD. ANY
    SCBA W/FULL FACEPIECE; 500X0.1MG/M3: POWERED AIR- (ING 9)
RTECS #:9999999ZZ

Ingred Name:ING 8: PURIFYING RESP W/HIGH EFFICIENCY PARTICULATE FILTER.
    TYPE C SUPP-AIR RESP OPERATED IN PRESS/CONTINUOUS (ING 10)
RTECS #:9999999ZZ

Ingred Name:ING 9: FLOW MODE; >500X0.1MG/M3/FOR ENTRY ESCAPE FROM
    UNKNOWN CONCS: SCBA W/FACEPIECE OPERATED IN PRESS DEMAND (ING 11)
RTECS #:9999999ZZ

Ingred Name:ING 10: & OTHER POS PRESS MODE. COMBINATION RESP WHICH INCL
    TYPE C SUPP-AIR RESP W/FULL FACEPIECE OPERATED IN (ING 12)
RTECS #:9999999ZZ

Ingred Name:ING 11:PRESS-DEMAND/OTHER POS PRESS/CONTINUOUS FLOW MODE &
    AUXILIARY SCBA OPERATED IN PRESS-DEMAND/OTHER POS PRESS MODE.
RTECS #:9999999ZZ

Ingred Name:OTHER PROT EQUIP: GENERATES EXCESS NOISE LEVELS.
    SANDBLASTERS REQUIRE SPEC PROT EQUIP & SFTY PREC. WEAR APPROP (ING
    14)
RTECS #:9999999ZZ

Ingred Name:ING 13: WORK CLOTHING TO MINIMIZE SKIN CONTACT AND SKIN
    ABRASION.
RTECS #:9999999ZZ

Ingred Name:HYGIENE PRACT: & EATEN IN SEPARATE LUNCH ROOMS. DO NOT EAT,
    DRINK OR SMOKE IN WORK AREAS WHERE EXPOSURE TO (ING 16)
RTECS #:9999999ZZ

Ingred Name:ING 15: SILICA DUST MAY BE EXCESSIVE.
RTECS #:9999999ZZ

=====================  Hazards Identification  =====================

LD50 LC50 Mixture:NONE SPECIFIED BY MANUFACTURER.
Routes of Entry: Inhalation:YES  Skin:YES  Ingestion:YES
Reports of Carcinogenicity:NTP:YES    IARC:YES	  OSHA:NO
Health Hazards Acute and Chronic:ACUTE: SKIN: MAY CAUSE IRRIT DUE TO
    HIGH PH. INGEST: HIGH PH MAY CAUSE IRRIT. INHAL: HLTH HAZ CAN OCCUR
    FROM EXCESS INHAL OF SILICA DUST. CRYSTALLINE SILICA IN LUNG CAN
    PRDCE PNEUMOCONIOSIS, COMMONLY  CALLED SILICOSIS, WHICH IS A
    CHRONIC SLOWLY DEVEL DISEASE. HIGH PH CAN CAUSE IRRIT. SILICOSIS
    ADULT (EFTS OF OVEREXP)
Explanation of Carcinogenicity:SILICA, CRYSTALLINE-QUARTZ: IARC MONO,
    SUPP, VOL 7, PG 341, 1987: GROUP 2A. NTP 7TH ANNUAL RPT ON CARCINS,
    (SUP DAT)
Effects of Overexposure:HLTH HAZ: DISEASE (PNEUMOCONIOSIS) OF LUNGS
    RSLTG FROM OVEREXP TO FREE SIO*2 DUST, USUALLY BEGINS INSIDIOUSLY
    W/SYMPS OF COUGHING, DYSPEPSIA, WHEEZING & RPTD NON-SPEC CHEST
    DISEASES. SIGNS & SYMPS OF	EXPOS: DYSPNEA (CAUSED BY MANY LUNG
    SCARS THAT DEVELOP FROM SILICA DUST), PAIN IN CHEST, DRCRD VITAL
    CAPACITY & COUGH.
Medical Cond Aggravated by Exposure:CHRONIC LUNG SCARRING LEADS TO
    PROGRESSIVE MASSIVE FIBROSIS THAT IS OFTEN ACCOMPANIED BY INCRD
    SUSCEPTIBILITY TO RISK OF IMPAIRED HLTH DUE TO COMBINATION OF
    SMOKING & SILICA DUST EXPOSURE.

=======================  First Aid Measures  =======================

First Aid:IF KNOWN ACUTE EXPOS/INCIDENT OCCURS, IMMED CALL MD/NEAREST
    MED FACILITY. INHAL:IMMED REMOVE FROM CONTAM AREA. FOR EXTREME RESP
    DISTRESS ADMIN OXYGEN. SKIN:REMOVE AFFECTED CLTHG & WASH SKIN AREA
    EXPOS ED. INGEST:REFER TO MD. DO NOT INDUCE VOMIT DUE TO ASPHY
    RISK. EYE: SAND MAY BE IRRIT TO EYES OF SENSITIVE/ALLERGIC PERS.
    WASH EYES CAREFULLY & GENTLY W/WARM WATER FOR AT LEAST 15 MIN &
    SEEK MED ATTN.

=====================  Fire Fighting Measures  =====================

Flash Point:NONE
Extinguishing Media:USE MEDIA SUITABLE FOR SURROUNDING FIRE .
Fire Fighting Procedures:WEAR NIOSH/MSHA APPROVED SCBA & FULL
    PROTECTIVE EQUIPMENT . MATERIAL IS NOT COMBUSTIBLE.
Unusual Fire/Explosion Hazard:NONE.

==================  Accidental Release Measures  ==================

Spill Release Procedures:CLEAN UP WITH DUSTLESS METHOD (USE VACUUM OR
    WET SWEEPING). PROVIDE VENTILATION.
Neutralizing Agent:NONE SPECIFIED BY MANUFACTURER.

======================	Handling and Storage  ======================

Handling and Storage Precautions:USE DUSTLESS SYS FOR STOR, HNDLG &
    CLEAN UP SO THAT AIRBORNE DUST DOES NOT EXCEED PEL. KEEP AREA WELL
    VENT. USE GOOD HOUSEKEEPING TECHNIQUES.
Other Precautions:USE ADEQ VENT & DUST COLLECTION. DO NOT PERMIT DUST
    TO COLLECT ON WALLS, FLOORS, SILLS, LEDGES, MACHINERY/EQUIP.
    MAINTAIN, CLEAN & TEST RESPS I/A/W OSHA REGS. MAINTAIN & TEST VENT
    & DUST COLLECTION EQ UIP. WASH CLTHG WHICH HAS BECOME (ING 3)

=============  Exposure Controls/Personal Protection  =============

Respiratory Protection:ANSI Z88.2 SPECIFICATIONS/OSHA STD # 1910.134.
    NIOSH/MSHA APPRVD PARTICULATE FILTER RESP. AIR SUPP HOODS FOR
    BLASTERS. FOR CRYSTALLINE SILICA (ALL NIOSH/MSHA APPRVD RESPS):
    5X0.1MG/M3/LESS: ANY DUST R ESP; 10X0.1MG/M3/LESS: ANY DUST (ING 6)
Ventilation:LOC & MECH (GEN) EXHSTS AS APPROP. ENGINEERING CTLS (E.G.,
    MECH EXHST) SHOULD BE IN PLACE IN ORDER TO ENSURE (SUP DAT)
Protective Gloves:IMPERVIOUS GLOVES .
Eye Protection:ANSI APPRVD CHEM WORKERS GOGGS .
Other Protective Equipment:ANSI APPRVD EMER EYEWASH & DELUGE SHOWER .
    HEARING PROTECTORS WHENEVER ABRASIVE BLASTING OPERATION (ING 13)
Work Hygienic Practices:WASH SKIN AT EACH SHIFT CHANGE. BEFORE EATING,
    HANDS & FACE SHOULD BE WASHED. ALL FOOD & LUNCHES SHOULD BE KEPT
    (ING 15)
Supplemental Safety and Health
PH:11.0-12.5. MATLS TO AVOID:ALKALIS. WILL COMBINE CHEMICALLY W/MANY
    METALLIC OXIDES UPON HEATING AT HIGH TEMPS. WILL REACT W/WATER TO
    FORM SOLID MASS. HAZ DECOMP PRODS:WHICH HAVE GREATER HLTH HAZ THA N
    QUARTZ. EXPLAN OF CARCIN:1994: ANTIC TO BE CARCIN. VENT:EMPLOYEE
    EXPOS TO RESP SILICA & RESP DUST DOES NOT EXCEED PEL.

==================  Physical/Chemical Properties  ==================

Boiling Pt:B.P. Text:4046F,2230C
Melt/Freeze Pt:M.P/F.P Text:3110F,1710C
Spec Gravity:2.65 (H*2O=1)
pH:SUPDAT
Evaporation Rate &amp; Reference:NONE (BUTYL ACETATE=1)
Solubility in Water:NONE
Appearance and Odor:GREY, ODORLESS

=================  Stability and Reactivity Data  =================

Stability Indicator/Materials to Avoid:YES
REACTS W/HYDROFLUORIC ACID TO GENERATE VOLAT, CORR GAS, SIF*4(SILICON
    TETRAFLUORIDE). MAY BE ATTACKED BY STRONG(SUP DAT)
Stability Condition to Avoid:NONE SPECIFIED BY MANUFACTURER.
Hazardous Decomposition Products:WHEN EXPOS TO HIGH TEMPS, MANY CHANGE
    CRYSTALLINE STRUCTURE TO FORM TRIDYMITE (>870C)/CRYSTOBALITE
    (>1470) (SUP DAT)

====================  Disposal Considerations  ====================

Waste Disposal Methods:FOLLOW STATE AND LOCAL REGULATIONS FOR SOLID
    WASTE. DISPOSE OF IN ACCORDANCE W/LOCAL, STATE & FEDERAL
    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.