NIOSH Pocket Guide to Chemical Hazards

Cotton dust (raw) CAS

RTECS GN2275000
Synonyms & Trade Names
Raw cotton dust
DOT ID & Guide
Exposure
Limits
NIOSH REL: TWA <0.200 mg/m3 See Appendix C
OSHA PEL: [Z-1-A & 1910.1043] TWA 1 mg/m3 (waste processing during waste recycling [sorting, blending, cleaning & willowing] & garnetting) TWA 0.200 mg/m3 (textile yarn manufacturing) TWA 0.750 mg/m3 (textile slashing & weaving) TWA 0.500 mg/m3 (all other operations) See Appendix C
IDLH 100 mg/m3 Conversion
Physical Description
Colorless, odorless solid.
MW: ?
BP: Decomposes
MLT: Decomposes
Sol: Insoluble
VP: 0 mmHg (approx)
IP: NA

Sp.Gr: ?
Fl.P: NA
UEL: NA
LEL: NA

Combustible Solid
Incompatibilities & Reactivities
Strong oxidizers
Measurement Methods
OSHA [1910.1043]
Personal Protection & Sanitation
Skin: No recommendation
Eyes: No recommendation
Wash skin: No recommendation
Remove: No recommendation
Change: No recommendation

First Aid (See procedures)


Breathing: Fresh air

Respirator Recommendations NIOSH
Up to 1 mg/m3: (APF = 5) Any dust respirator
Up to 2 mg/m3: (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 5 mg/m3: (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 10 mg/m3: (APF = 50) Any air-purifying, full-facepiece respirator with a high-efficiency particulate filter/(APF = 50) Any supplied-air respirator that has a tight-fitting facepiece and is operated in a continuous-flow mode/(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 100 mg/m3: (APF = 1000) Any supplied-air respirator 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
Exposure Routes inhalation
Symptoms Byssinosis: chest tightness, cough, wheezing, dyspnea (breathing difficulty); decreased forced expiratory volume; bronchitis; malaise (vague feeling of discomfort); fever, chills, upper respiratory symptoms after initial exposure
Target Organs cardiovascular system, respiratory system
See also: INTRODUCTION