SDS

No. A-017-8 Kurastone Safety Data Sheet Revised on 8/25/2015
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[7. HANDLING AND STORAGE PRECAUTIONS]
Handling: ・Wear protective gloves (work gloves, etc.) when handling the product.
・Provide local exhaust measures when cutting the material and use cutting equipment with anti-
dust function. Also wear proper protective equipment (anti-dust mask, protective goggles, etc.)
so as not to inhale powder dust or let it enter your eyes.
・Do not wet the product.
・Rinse your face, hands, mouth, etc., with water after handling the product.
・Clean dust with HEPA filter equipped vacuum. Do not dry sweep or use compressed air.
Storage: Store the product away from water.
[8. MEASURES FOR PREVENTION OF EXPOSURE]
See below if powder dust generates from cutting or otherwise processing the product.
Controlled concentration: E = 3.0 / (1.19Q + 1) (mg/m
3
)
(Q: Free silicate content in powder dust)
Allowable concentration:
Japan Society for Occupational Health (2014)
Inhalant crystalline silica 0.03 mg/m
3
(TWA)
Inhalant powder dust 1 mg/m
3
(TWA)
Total powder dust 4 mg/m
3
(TWA)
ACGIH (2006)
Crystalline silica 0.025 mg/m
3
(TWA)
Inhalant powder dust 3 mg/m
3
(TWA)
Total powder dust 10 mg/m
3
(TWA)
OSHA PEL (2015)
Crystalline silica (Quartz) (Respirable Fraction) 10 mg/m
3
÷ (%SiO
2
+ 2)
(Total Dust) 30 mg/m
3
÷ (%SiO
2
+ 2)
Calcium Oxide 5 mg/m
3
(TWA)
Calcium Carbonate (Respirable Fraction) 5 mg/m
3
(TWA)
(Total) 15 mg/m
3
(TWA)
Calcium Hydrate (Respirable Fraction) 5 mg/m
3
(TWA)
(Total) 15 mg/m
3
(TWA)
Calcium Silicate (Respirable Fraction) 5 mg/m
3
(TWA)
(Total) 15 mg/m
3
(TWA)
Iron Oxide (Total) 10 mg/m
3
(TWA)
Titanium Oxide (Total) 15 mg/m
3
(TWA)
Fibrous Glass (Respirable Fraction) 5 mg/m
3
(TWA)
(Total) 15 mg/m
3
(TWA)
Facility/Engineering Measures: Cut the product outdoors or in a well-ventilated place using a saw with fiber
cement saw blades and dust-collecting function. When handling the product
indoors, provide a ventilation system, etc., to keep the concentration of airborne
dust to the controlled level or below.