Material Safety Data Sheet (MSDS)

CONDITION Particulate Concentration	MINIMUM RESPIRATORY PROTECTION REQUIRED TO MEET THE CONDITION ACGIH-TLV FOR CRYSTALLINE SILICA (0.1 mg/m³)
Firefighting	Any self-contained breathing apparatus equipped with a full facepiece and operated in a pressure-demand or other positive-pressure mode approved by NIOSH
Escape only	Any air-purifying respirator with a P100 filter approved by NIOSH, or Any appropriate escape-type, self-contained breathing apparatus

See also ANSI Standard Z88.2 (latest revision) "American National Standard for Respiratory Protection," 29 CFR 1910.134 and 1926.103, and 42 CFR 84.

Exposure Guidelines for Crystalline Silica
OSHA		ACGIH		NIOSH
TWA	STEL	TWA	STEL	TWA	STEL	Unit
10 mg/m³ % SiO₂+2	None	0.1	None	0.05	None	mg/m³

If the workplace airborne crystalline silica concentration is unknown for a give task, conduct air monitoring to determine the appropriate level of respiratory protection. Consult with a certified industrial hygienist, your insurance risk manager, or the OSHA Consultative Services group for detailed information. Ensure appropriate respirators are worn during and following the task, including clean-up or whenever airborne dust is present, to insure ambient dust levels are below occupational health limits.

Gloves:	Recommended in situations where abrasion from sand may occur.

Eye:	Goggles recommended where airborne dust is produced.

Other:	Protective clothing as appropriate for the work environment. Dusty clothing should be laundered before it is reused. Do not take dusty clothing home.

Section 9 - Physical and Chemical Properties

Appearance:	Light Buff to White Sand
Odor:	None
Physical State:	Granular Solid
pH:	Not Applicable
Vapor Pressure:	Not Applicable
Vapor Density:	Not Applicable
Boiling Point or Range, ºF:	Above 3500ºF
Melting Point or Range, ºF:	Above 2000ºF
Solubility In Water:	Insoluble
Specific Gravity:	2.65 Crystalline

Section 10 - Stability and Reactivity

Stability:	Stable
Materials to Avoid:	Strong Oxidizing Agents
Hazardous Decomposition Products:	None
Hazardous Polymerization:	Will not occur

Manley Bros. Silica Sand MSDS 10/31/00 Page 4 of 7