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As a result, the International Agency for Research on Cancer (IARC) has
classified RCF, along with fibrous glasswool and mineral wool, as possible human
carcinognes (Group 2B) based on sufficient evidence of carcinogenicity in animals
but insufficient data in humans. IARC has also classified respirable crystalline
silica, which may be found in after- service RCF exposed to temperatures above
1800°F, as a known carcinogen to humans (Group 1). See Section IX for
additional information concerning after service RCF.
VI. PERSONAL PROTECTION
Eye Protection:
Skin Protection:
Respiratory Protection:
Concentration
.5-5 f/cc
5-25 f/cc
25-50 f/cc
Thermo Scientific
Safety glasses with side shields or goggles are recommended, partic-
ularly when working overhead. do not wear contact lenses.
Wear gloves, hats, or loose fitting full body clothing as required to
prevent skin irritation. Wash exposed areas with soap and warm
water after handling. Wash work clothes separately from other cloth-
ing. Rinse washing machine thoroughly after use.
Use mechanical ventilation with proper dust collection equipment to
keep the dust level below the exposure limits listed in the Ingredi-
ents/Health Hazard Information section.
Use NIOSH or MSHA approved equipment when airborne exposure
limits are exceeded. Acceptable respirators recommended for various
repairable fiber concentrations are:
Respirator Type
Half-face, tight fitting respirator with HEPA filter cartridges (Example:
3M 6340)
Tight fitting, full face air purifying respirator with HEPA filter cartridges
or powered air-purifying respirator (PAPR) equipped with HEPA filter
cartridges (Example: 3M 7800 with 7255 filters)
Full face, supplied air respirator operated in positive pressure mode
(Example: 3M 7800 with W9435 hose and W3195 regulator)
f/cc = Fibers per cubic centimeter
HEPA = High-efficiency particulate air filter.
Safety Notes
Material Safety Data Sheet
1-7
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