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| Fibrous glass dust | CAS | ||
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RTECS LK3651000 | ||
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Synonyms & Trade Names Fiber glas®, Fiberglass, Glass fibers, Glass wool [Note: Usually produced from borosilicate & low alkali silicate glasses.] |
DOT ID & Guide |
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Exposure Limits |
NIOSH REL: TWA 3 fibers/cm3 (fibers 3.5 m in diameter & 10 m in length) TWA 5 mg/m3 (total) | ||
| OSHA PEL: TWA 15 mg/m3 (total) TWA 5 mg/m3 (resp) | |||
| IDLH N.D. | Conversion | ||
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Physical Description Typically, glass filaments >3 m in diameter or glass "wool" with diameters down to 0.05 m & >1 m in length. |
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MW: NA |
BP: NA |
MLT: ? |
Sol: Insoluble |
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VP: 0 mmHg (approx) |
IP: NA |
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Sp.Gr: 2.5 |
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Fl.P: NA |
UEL: NA |
LEL: NA |
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| Noncombustible Fibers | |||
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Incompatibilities & Reactivities None reported |
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Measurement Methods NIOSH 7400 |
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Personal Protection & Sanitation Skin: Prevent skin contact Eyes: Prevent eye contact Wash skin: Daily Remove: No recommendation Change: Daily |
First Aid (See procedures) Eye: Irrigate immediately Breathing: Fresh air |
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Respirator Recommendations
NIOSH Up to 5X REL: (APF = 5) Any dust respirator Up to 10X REL: (APF = 10) Any dust respirator except single-use and quarter-mask respirators/(APF = 10) Any air-purifying respirator with a high-efficiency particulate filter/(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 dust filter Up to 50X REL: (APF = 50) Any air-purifying, full-facepiece respirator with a high-efficiency particulate filter/(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 a high-efficiency particulate filter/Any appropriate escape-type, self-contained breathing apparatus |
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| Exposure Routes inhalation, skin and/or eye contact | |
| Symptoms Irritation eyes, skin, nose, throat; dyspnea (breathing difficulty) | |
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Target Organs
Eyes, skin, respiratory system |
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| See also: INTRODUCTION |