28 Series 31XX, 32XX Furnaces | Appendix A: SDS Information
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7. HANDLING AND STORAGE
(a) Precautions for safe handling
Handle fiber carefully to minimize airborne dust. Limit use of power tools unless in conjunction with local exhaust
ventilation. Use hand tools whenever possible.
(b) Conditions for safe storage, including any incompatibilities
Store in a manner to minimize airborne dust.
8. EXPOSURE CONTROLS
PERSONAL PROTECTION
(a) OSHA permissible exposure limit (PEL), American Conference of Governmental Industrial Hygienists
(ACGIH) Threshold Limit Value (TLV), and any other exposure limit used or recommended by the chemical
manufacturer, importer, or employer preparing the safety data sheet, where available
Components
OSHA PEL NIOSH REL ACGIH TLV MANUFACTURER
REG
Refractory Ceramic Fiber
(RCF)
None established* 0.5 f/cc, 8-hr. TWA 0.2 f/cc TLV, 8-hr. TWA 0.5 f/cc, 8-hr. TWA**
Silica (amorphous)
Starch
20 mppcf or 80 mg/m³ / % SiO2
5 mg/m³ PEL (resp. dust) 15
mg/m³ PEL (total dust)
10 mg/m³
10 mg/m³
None established
None established
*Except for the state of California, where the PEL for RCF is 0.2 f/cc 8-hr TWA, there is no specific regulatory
standard for RCF in the U.S. OSHA’s “Particulate Not Otherwise Regulated (PNOR)” standard [29 CFR 1910.1000,
Subpart Z,
ir Contaminants] applies generally - Total Dust Total Dust 15 mg/m³; Respirable Fraction 5 mg/m³.
**In the absence of an OSHA PEL, HTIW Coalition has adopted a recommended exposure guideline (REG), as
measured under NIOSH Method 7400 B. For further information on the history and development of the REG see
“Rationale for the Recommended Exposure Guideline” at page 34 of the HTIW Coalition Product Stewardship
Program http
://ww
.htiwcoalition.org/documents/PSP
2012.pdf .
OTHER OCCUPATIONAL EXPOSURE LEVELS (OEL)
RCF-related occupational exposure limits vary internationally. Regulatory OEL examples include: California, 0.2 f/cc;
Canadian provincial OELs ranging from 0.2 to 1.0 f/cc. The objectives and criteria underlying each of these OEL
decisions also vary. The evaluation of occupational exposure limits and determining their relative applicability to the
workplace is best performed, on a case-by-case basis, by a qualified Industrial Hygienist.
(b) Appropriate engineering controls
Use engineering controls such as local exhaust ventilation, point of generation dust collection, down draft work
stations, emission controlling tool designs, and materials handling equipment designed to minimize airborne fiber
emissions.
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