Mineral wool fiber
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CAS
PY8070000
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RTECS
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Synonyms & Trade Names
Manmade mineral fibers, Rock wool, Slag wool, Synthetic vitreous fibers [Note: Produced by blowing steam or air through molten rock (rock wool) or various furnace slags that are by-products of metal smelting or refining processes (slag wool).]
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DOT ID & Guide
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Exposure
Limits
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NIOSH REL: TWA 3 fibers/cm3 (fibers with diameter < or = 3.5 µm & length > or = 10 µm.) TWA 5 mg/m3 (total)
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OSHA PEL: TWA 15 mg/m3 (total) TWA 5 mg/m3 (resp)
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IDLH
N.D.
See: IDLH INDEX
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Conversion
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Physical Description
Typically, a mineral "wool" with diameters >0.5 µm & length >1.5 µm.
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MW: varies
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BP: NA
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MLT: ?
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Sol: Insoluble
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VP: 0 mmHg (approx)
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IP: NA
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Sp.Gr: ?
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Fl.P: NA
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UEL: NA
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LEL: NA
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Noncombustible Fibers
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Incompatibilities & Reactivities
None reported
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Measurement Methods
NIOSH 0500, 7400
See: NMAM or OSHA Methods |
Personal Protection & Sanitation (See protection)
Skin: Prevent skin contact
Eyes: Prevent eye contact
Wash skin: Daily
Remove: No recommendation
Change: Daily
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First Aid (See procedures)
Eye: Irrigate immediately
Breathing: Fresh air
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Respirator Recommendations
NIOSH
Up to 5X REL:
(APF = 5) Any quarter-mask respirator. Click here for information on selection of N, R, or P filters.
Up to 10X REL:
(APF = 10) Any particulate respirator equipped with an N95, R95, or P95 filter (including N95, R95, and P95 filtering facepieces) except quarter-mask respirators. The following filters may also be used: N99, R99, P99, N100, R100, P100. Click here for information on selection of N, R, or P filters.
(APF = 10) Any supplied-air respirator
Up to 25X REL:
(APF = 25) Any supplied-air respirator operated in a continuous-flow mode
(APF = 25) Any powered air-purifying respirator with a high-efficiency particulate filter.
Up to 50X REL:
(APF = 50) Any air-purifying, full-facepiece respirator with an N100, R100, or P100 filter. Click here for information on selection of N, R, or P filters.
(APF = 50) Any powered, air-purifying respirator with a tight-fitting facepiece and a high-efficiency particulate filter
(APF = 50) Any self-contained breathing apparatus with a full facepiece
(APF = 50) Any supplied-air respirator with a full facepiece
Up to 1000X REL:
(APF = 2000) Any supplied-air respirator that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode
Emergency or planned entry into unknown concentrations or IDLH conditions:
(APF = 10,000) Any self-contained breathing apparatus that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode
(APF = 10,000) Any supplied-air respirator that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode in combination with an auxiliary self-contained positive-pressure breathing apparatus
Escape:
(APF = 50) Any air-purifying, full-facepiece respirator with an N100, R100, or P100 filter. Click here for information on selection of N, R, or P filters./Any appropriate escape-type, self-contained breathing apparatus
Important additional information about respirator selection
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Exposure Routes
inhalation, skin and/or eye contact
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Symptoms
Irritation eyes, skin, respiratory system; dyspnea (breathing difficulty)
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Target Organs
Eyes, skin, respiratory system
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