Material Safety Data Sheet

SECTION I - Material Identity


Item Name............................... STRAIT-LINE YELLOW MARKING CHALK
Part Number/Trade Name.................. STRAIT-LINE MARKING CHALK YELLOW MSDS SERIAL:BLQZN
National Stock Number................... 9999LAB138A
CAGE Code............................... 1JU00
Part Number Indicator................... A
MSDS Number............................. 10289
HAZ Code................................ B

SECTION II - Manufacturer's Information


Manufacturer Name....................... IRWIN CO
Emergency Phone......................... 513-382-3811

MSDS Preparer's Information


Date MSDS Prepared/Revised.............. NONE
Active Indicator........................ N

Alternate Vendors


SECTION III - Physical/Chemical Characteristics


Specification Number.................... N/K
Boiling Point........................... N/K
Container Pressure Code................. 4
Temperature Code........................ 8
Product State Code...................... U

SECTION IV - Fire and Explosion Hazard Data


Flash Point Method...................... UNK

SECTION V - Reactivity Data


Stability............................... YES
Stability Conditions to Avoid........... N/K
Materials to Avoid...................... FLUORINE
Hazardous Decomposition Products........ CO*2
LD50 - LD50 Mixture..................... ORAL LD50 (RAT) 6450 MG/KG * SEE SUPP

SECTION VI - Health Hazard Data


Route of Entry: Skin.................... NO
Route of Entry: Inhalation.............. YES
Health Hazards - Acute and Chronic...... INHALATION: RESPIRATORY IRRITATION. EYES: IRRITATION
Carcinogenity: NTP...................... NO
Carcinogenity: IARC..................... NO
Carcinogenity: OSHA..................... NO
Symptoms of Overexposure................ SEE HEALTH HAZARDS
Medical Cond. Aggrevated by Exposure.... CHRONIC RESPIRATORY DISEASES

SECTION VII - Precautions for Safe Handling and Use


SECTION VIII - Control Measures


Respiratory Protection.................. USE NIOSH APPROVED RESPIRATOR FOR DUSTS & WHEN >TLV
Ventilation............................. ADEQUATE TO CONTROL DUSTING AND TO KEEP 
Protective Gloves....................... NOT NORMALLY REQUIRED
Eye Protection.......................... GLASSES OR GOGGLES
Supplemental Health/Safety Data......... LD50 DATA IS FOR CALCIUM CARBONATE

SECTION IX - Label Data


Protect Eye............................. YES
Protect Skin............................ NO
Protect Respiratory..................... NO
Chronic Indicator....................... NO
Contact Code............................ MODERATE
Fire Code............................... UNKNOWN
Health Code............................. UNKNOWN
React Code.............................. UNKNOWN

SECTION X - Transportation Data


SECTION XI - Site Specific/Reporting Information


SECTION XII - Ingredients/Identity Information


Ingredient #............................ 00
Ingredient Name......................... CALCIUM CARBONATE (MARBLE)(LIMESTONE)
CAS Number.............................. 1317653
NIOSH Number............................ EV9580000
Proprietary............................. NO
Percent................................. 80
ACGIH TLV............................... 10MG/M3 TDUST;9192
Ingredient #............................ 02
Ingredient Name......................... IRON OXIDE
CAS Number.............................. 1309371
NIOSH Number............................ NO7400000
Proprietary............................. NO
Percent................................. 20
ACGIH TLV............................... 5MG/M3(FE),B2;9192