SDS

8. Exposure Controls/Personal Protection
Occupational exposure limits
US. ACGIH Threshold Limit Values
ValueComponents Type
TWA 5 mg/m3Sodium metabisulfite (CAS
7681-57-4)
US. NIOSH: Pocket Guide to Chemical Hazards
ValueComponents Type
TWA 5 mg/m3Sodium metabisulfite (CAS
7681-57-4)
Biological limit values
No biological exposure limits noted for the ingredient(s).
Exposure guidelines
Chemicals listed in section 3 that are not listed here do not have established limit values for
ACGIH or OSHA PEL.
Appropriate engineering
controls
Good general ventilation (typically 10 air changes per hour) should be used. Ventilation rates
should be matched to conditions. If applicable, use process enclosures, local exhaust ventilation,
or other engineering controls to maintain airborne levels below recommended exposure limits. If
exposure limits have not been established, maintain airborne levels to an acceptable level.
Individual protection measures, such as personal protective equipment
Eye/face protection
Wear safety glasses with side shields.
Skin protection
Hand protection
Rubber gloves. Confirm with a reputable supplier first.
Other
Wear appropriate chemical resistant clothing. As required by employer code.
Respiratory protection
Wear positive pressure self-contained breathing apparatus (SCBA). Avoid inhalation of dust.
Where exposure guideline levels may be exceeded, use an approved NIOSH respirator.
Thermal hazards
Not applicable.
General hygiene
considerations
Always observe good personal hygiene measures, such as washing after handling the material
and before eating, drinking, and/or smoking. Routinely wash work clothing and protective
equipment to remove contaminants. Contaminated work clothing should not be allowed out of the
workplace.
9. Physical and Chemical Properties
Appearance
Free-flowing Powder
Physical state
Solid.
Form
Powder
Color
White
Odor
Characteristic
Odor threshold
Not available.
pH
Not available.
Melting point/freezing point
Not available.
Initial boiling point and boiling
range
Not available.
Pour point
Not available.
Specific gravity
Not available.
Partition coefficient
(n-octanol/water)
Not available.
Flash point
None
Evaporation rate
Not available.
Flammability (solid, gas)
Not applicable.
Upper/lower flammability or explosive limits
Flammability limit - lower
(%)
Not available.
Flammability limit - upper
(%)
Not applicable
Explosive limit - lower (%)
Not available.
Explosive limit - upper (%)
Not available.
Vapor pressure
Not available.
Vapor density
Not available.
#7845 Issue date 21-May-2015
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