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Cotton dust (raw)																				Related Pages
Synonyms & Trade Names
			Raw cotton dust
CAS No.
	RTECS No.
			GN2275000
	DOT ID & Guide
			1365 133(cotton)

Formula
	Conversion
	IDLH
			100 mg/m3See: IDLH INDEX

Exposure Limits
			NIOSH RELTWA <0.200 mg/m3See Appendix C
					OSHA PEL [Z-1-A & 1910.1043] See Appendix C
	Measurement Methods
			**OSHA** [1910.1043]
					
					See: NMAM or OSHA Methods
										
Physical Description
			Colorless, odorless solid													
										
Molecular Weight?	
	Boiling PointDecomposes
	Melting PointDecomposes
	SolubilityInsoluble
	Vapor Pressure0 mmHg (approx)
	Ionization PotentialNA											
Specific Gravity?	
	Flash PointNA
	Upper Explosive LimitNA
	Lower Explosive LimitNA
Combustible Solid
Incompatibilities & Reactivities
			Strong oxidizers
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 resp symptoms after initial exposure
Target Organs
			cardiovascular system, respiratory system
										
Personal Protection/Sanitation
			(See protection codes) **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
			(See Appendix E)**NIOSH****Up to 1 mg/m3**: (APF = 5) Any quarter-mask respirator. Click here for information on selection of N, R, or P filters.**Up to 2 mg/m3**: (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 5 mg/m3**: (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 10 mg/m3**:(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 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 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
See also
			INTRODUCTION
					
					  MEDICAL TESTS: 0058

			
							

			Page last reviewed:  October 30, 2019						Content
							source: 	National Institute for Occupational Safety and Health NIOSH Pocket Guide to Chemical Hazards
Introduction
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Appendices
A – NIOSH Potential Occupational Carcinogens
B – Thirteen OSHA-Regulated Carcinogens
C – Supplementary Exposure Limits
D – Substances with No Established RELs
E – OSHA Respirator Requirements for Selected Chemicals
F – Miscellaneous Notes
G – 1989 Air Contaminants Update Project: Exposure Limits NOT in Effect
Type C & CE – Definitions for Type C and Type CE Respirators
Personal Protection and Sanitation Codes
First Aid Procedures Follow NIOSH Facebook
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