BDH INC.                                    
              M A T E R I A L   S A F E T Y   D A T A   S H E E T              
                                                                               
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            SECTION I CHEMICAL PRODUCT AND COMPANY IDENTIFICATION              
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  MANUFACTURER:                                                                
                                                                               
    BDH INC.                     INFORMATION PHONE NO.: 416-255-8521           
    350 EVANS AVENUE             HOURS: MON. TO FRI. (0830 - 1630)             
    TORONTO, ONTARIO             CHEMTREC TRANSPORTATION EMERGENCY CENTER      
    CANADA, M8Z 1K5              (CHEMTREC) 24-HOUR...1-800-424-9300           
 PRODUCT NAME: BUFFER, PH 7.00, YELLOW                                         
 CATALOGUE NUMBER(S): 34170-130, 34170-148, 34170-157, 34170-175, B-2055-03, B-
 2055-04, B-2055-06, B-2055-08, 34170-158, 34170-196                           
 CHEMICAL NAME/OTHER NAME: BUFFER, PH 7.00, YELLOW                             
 CHEMICAL FORMULA: H2O, C12H9O, KH2PO4, NA2HPO4, C16H9N4NA3O9S2                
 CHEMICAL FAMILY: MIXTURE                                                      
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                SECTION II COMPOSITION/INFORMATION ON INGREDIENTS              
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 CHEMICAL NAME            CAS NO.       OSHA PEL        ACGIH TLV        %(W/V)
                                                                               
                                                                               
 DOWICIDE A               132-27-4         -                -            0.05  
 POTASSIUM DIHYDROGEN    7778-77-0         -                -            0.35  
 PHOSPHATE                                                                     
 DI-SODIUM HYDROGEN      7558-79-4         -                -            0.58  
 PHOSPHATE                                                                     
 TARTRAZINE              1934-21-0         -                -          0.0006  
 WATER                   7732-18-5         -                -                  
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                     SECTION III HAZARDS IDENTIFICATION                        
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 APPEARANCE: CLEAR, YELLOW LIQUID                                              
                                                                               
 ****************************** EMERGENCY OVERVIEW ****************************
                                                                               
 *                  HANDLE IN ACCORDANCE WITH GOOD LABORATORY/                *
                                                                               
 *                   INDUSTRIAL HYGIENE AND SAFETY PRACTICES                  *
                                                                               
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                  POTENTIAL HEALTH EFFECTS (ACUTE & CHRONIC)               
                                                                               
                                                                               
                                                                               
 (REFER TO LAST PAGE FOR DISCLAIMER)                 34170-130   PAGE:    1    
                                                                               
                                                                               
                                                                               
                                                                               
                                                                               
 SYMPTOMS OF EXPOSURE: NO INFORMATION AVAILABLE                                
 MEDICAL CONDITION AGGRAVATED BY EXPOSURE: NONE IDENTIFIED                     
 ROUTES OF ENTRY: INHALATION, INGESTION                                        
 CARCINOGENICITY: DOWICIDE A IS LISTED AS A POSSIBLE CARCINOGEN BY IARC        
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                         SECTION IV FIRST AID MEASURES                         
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        EYE: IN CASE OF EYE CONTACT, FLUSH WITH PLENTY OF WATER FOR AT LEAST   
 15              MINUTES WHILE HOLDING THE EYELIDS OPEN. HAVE EYES EXAMINED BY 
                   MEDICAL PERSONNEL.                                          
                                                                               
       SKIN: IN CASE OF SKIN CONTACT, WASH WITH SOAP AND WATER. GET MEDICAL    
               ATTENTION IF IRRITATION DEVELOPS OR PERSISTS.                   
                                                                               
  INGESTION: IF SWALLOWED, DO NOT INDUCE VOMITING. GIVE VICTIM A GLASS OF      
 WATER              OR MILK. CALL A PHYSICIAN IMMEDIATELY. NEVER GIVE ANYTHING 
 BY                                                                            
             MOUTH TO AN UNCONSCIOUS PERSON.                                   
                                                                               
 INHALATION: IF INHALED, REMOVE TO FRESH AIR.                                  
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                     SECTION V FIRE FIGHTING MEASURES                          
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 FLAMMABILITY CLASSIFICATION: NONCOMBUSTIBLE                                   
 EXTINGUISHING MEDIA: USE ANY SUITABLE FOR ADJACENT MATERIAL                   
 FLASH POINT(F)/METHOD: NOT APPLICABLE                                         
 FIRE & EXPLOSION HAZARD: NONE IDENTIFIED                                  
 UPPER FLAMMABLE LIMIT (%): NOT APPLICABLE                                     
 LOWER FLAMMABLE LIMIT (%): NOT APPLICABLE                                     
 AUTOIGNITION TEMPERATURE: NOT APPLICABLE                                      
 FIREFIGHTING PROCEDURES: FIREFIGHTERS SHOULD WEAR A SELF CONTAINED BREATHING  
 APPARATUS.                                                                    
 HAZARDOUS COMBUSTION PRODUCTS: COX                                            
 SENSITIVITY TO STATIC DISCHARGE: NO                                           
 SENSITIVITY TO MECHANICAL IMPACT: NO                                          
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                      SECTION VI ACCIDENTAL RELEASE MEASURES                   
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 LEAK OR SPILL CLEANUP: EVACUATE THE AREA OF ALL UNNECESSARY PERSONNEL. WEAR   
 SUITABLE PROTECTIVE EQUIPMENT LISTED IN EXPOSURE CONTROLS/PERSONAL PROTECTION.
  CONTAIN THE RELEASE AND ELIMINATE IT'S SOURCE, IF THIS CAN BE DONE WITHOUT   
 RISK. TAKE UP AND CONTAINERIZE FOR PROPER DISPOSAL AS DESCRIBED UNDER DIS     
 POSAL.COMPLY WITH FEDERAL, STATE, AND LOCAL REGULATIONS ON REPORTING RELEASES.
                                                                               
 REFER TO REGULATORY INFORMATION FOR REPORTABLE QUANTITY AND OTHER REGULATORY  
 DATA.                                                                         
                                                                               
                                                                               
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                         SECTION VII HANDLING & STORAGE                    
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 HANDLING & STORAGE: STORE IN A COOL, DRY AREA.                            
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                SECTION VIII EXPOSURE CONTROLS/PERSONAL PROTECTION             
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 ENGINEERING CONTROLS: NONE SPECIFIED                                          
                                                                               
                        PERSONAL PROTECTIVE EQUIPMENT                          
                                                                               
 GLOVES: NEOPRENE, PVC OR EQUIVALENT                                           
 RESPIRATORY PROTECTION: NONE SPECIFIED                                        
 EYE PROTECTION: SAFETY GLASSES                                                
 CLOTHING: NONE SPECIFIED                                                      
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                   SECTION IX PHYSICAL & CHEMICAL PROPERTIES               
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 PHYSICAL STATE: LIQUID                                                        
 APPEARANCE: CLEAR, YELLOW LIQUID                                              
 ODOR: ODORLESS                                                                
 ODOR THRESHOLD: NOT APPLICABLE                                                
 VAPOR PRESSURE: NOT AVAILABLE                                                 
 VAPOR DENSITY: NOT AVAILABLE                                                  
 SPECIFIC GRAVITY: APPROX. 1                                                   
 BOILING POINT (F): APPROX. 212                                                
 MELTING POINT (F): APPROX 32O                                                 
 EVAPORATION RATE: NOT AVAILABLE                                               
 PH: 7.00                                                                      
 SOLUBILITY IN WATER: SOLUBLE                                                  
 OCTANOL/WATER PARTITION COEFFICIENT: NOT AVAILABLE                            
 PER CENT VOLATILE BY VOL (%): 99                                              
 MOLECULAR WEIGHT: THIS PRODUCT IS A MIXTURE                                   
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                       SECTION X STABILITY & REACTIVITY                    
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 CHEMICAL STABILITY: NORMALLY STABLE                                           
 CONDITIONS TO AVOID: HEAT                                                     
 MATERIALS TO AVOID: OXIDIZERS                                                 
 HAZARDOUS POLYMERIZATION: DOES NOT OCCUR                                      
 HAZARDOUS DECOMPOSITION PRODUCTS: NONE                                        
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                    SECTION XI TOXICOLOGICAL INFORMATION                       
                                                                               
                                                                               
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 EFFECTS OF ACUTE EXPOSURE: NO INFORMATION AVAILABLE                           
 EFFECTS OF CHRONIC EXPOSURE: NO INFORMATION AVAILABLE                         
 LD50: 656 MG/KG (ORAL-RAT) [DOWICIDE A]                                       
 LC50: NOT AVAILABLE                                                           
 IRRITANCY (DRAIZE TEST RESULTS): NO INFORMATION AVAILABLE                     
 CARCINOGENICITY: DOWICIDE A IS LISTED AS A POSSIBLE CARCINOGEN                
 TERATOGENICITY: NO INFORMATION AVAILABLE                                      
 MUTAGENICITY: NO INFORMATION AVAILABLE                                        
 REPRODUCTIVE EFFECTS: NO INFORMATION AVAILABLE                                
 SENSITIZATION TO PRODUCT: NO INFORMATION AVAILABLE                            
 TARGET ORGANS: NONE IDENTIFIED                                                
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                     SECTION XII DISPOSAL CONSIDERATIONS                       
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 EPA WASTE NUMBER(S): THIS MATERIAL DOES NOT HAVE AN EPA WASTE NUMBER.         
 ALWAYS CONTACT A PERMITTED WASTE DIPOSER (TSD) TO ASSURE COMPLIANCE WITH ALL  
 CURRENT LOCAL, STATE AND FEDERAL REGULATIONS                                  
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                     SECTION XIII TRANSPORT INFORMATION                        
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 DOT SHIPPING NAME: NOT REGULATED                                              
 DOT NUMBER (UN): NOT REGULATED                                                
 PACKING GROUP: NOT REGULATED                                                  
 HAZARD CLASS: NOT REGULATED                                                   
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                    SECTION XIV REGULATORY INFORMATION                         
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 TSCA INVENTORY (YES/NO): YES, THIS MATERIAL IS A MIXTURE.THE CAS NUMBERS OF   
 ALL COMPONENTS ARE LISTED ON THE TSCA INVENTORY.                              
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 COMPONENT                SARA EHS (302)  SARA EHS TPQ (LBS)   CERCLA RQ (LBS) 
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 WATER                           -               -                    -        
 DOWICIDE A                      -               -                    -        
 POTASSIUM DIHYDROGEN PHOSPHATE  -               -                    -        
 DI-SODIUM HYDROGEN PHOSPHATE    -               -                    -        
 TARTRAZINE                      -               -                    -        
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 COMPONENT               OSHA FLOOR LIST    SARA 313    DEMINIMIS (SARA 313)(%)
                                                                               
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 (REFER TO LAST PAGE FOR DISCLAIMER)                 34170-130   PAGE:    4    
                                                                               
                                                                               
                                                                               
                                                                               
                                                                               
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 WATER                           -               -                    -        
 DOWICIDE A                      -               -                    -        
 POTASSIUM DI-HYDROGEN PHOSPHATE -               -                    -        
 DI-SODIUM HYDROGEN PHOSPHATE    -               -                    -        
 TARTRAZINE                      -               -                    -        
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                          SECTION XV OTHER INFORMATION                         
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 -                           NFPA HAZARD RATINGS (0-4)                         
                                                                               
 HEALTH: 0                     FLAMMABILITY: 0                    REACTIVITY:  
 0                                                                             
                                                                               
 NFPA SPECIAL WARNINGS: NONE                                                   
 PREPARATION DATE: AUGUST 24, 1993                                             
 REVISION HISTORY: AUGUST 24, 1993; APRIL 5, 1994; MAY 5, 1994; JULY 8, 1994   
 COMMENTS: NONE                                                                
                                                                               
                                                                               
          PREPARED BY: TECHNICAL AFFAIRS DEPARTMENT, BDH INC.,                 
                       TORONTO, ONTARIO, CANADA                                
                       (416) 255-8521                                          
                                                                               
                                                                               
                                                                               
                                                                               
                                                                               
                                                                               
                                                                               
                                                                               
                                                                               
                                                                               
                                                                               
                                                                               
                                                                               
                                                                               
                                                                               
                                                                               
                                                                               
                                                                               
                                                                               
                                                                               
                                                                               
                                                                               
                                                                               
                                                                               
                                                                               
                                                                               
 THE STATEMENTS CONTAINED HEREIN ARE OFFERED FOR INFORMATIONAL PURPOSES ONLY   
 AND ARE BASED UPON TECHNICAL DATA THAT BDH INC BELIEVES TO BE ACCURATE.       
 IT IS INTENDED FOR USE ONLY BY PERSONS HAVING THE NECESSARY TECHNICAL SKILLS  
 AND AT THEIR OWN DISCRETION AND RISK. SINCE CONDITIONS AND MANNER OF USE ARE  
 OUTSIDE OUR CONTROL, WE MAKE NO WARRANTY,EXPRESS OR IMPLIED OF                
 MERCHANTABILITY,FITNESS OR OTHERWISE.                                         
                                                                               
 COPYRIGHT BDH, 1997                               34170-130   PAGE:    5