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Refractory Ceramic Fibers (RCFs) Test Results


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CAS No. 142844-00-6

Consent Order (CO)
58 FR 28517; May 14, 1993
Refractory Ceramic Fibers Coalition (RCFC)

Notices
57 FR 36997; August 17, 1992/Proposed Consent Order

Project Manager: Melinda Pearce (CMD), Cindy Fournier (CMD), Samuel Brown (CMD)

Branch Chief: Doreen Cantor (CMD)

Status: Testing underway. Attachment A for information on Voluntary Product Stewardship Program activities relating to these chemicals.

Identification of Chemicals

Refractory Ceramic Fibers are defined as amorphous man-made fibers produced from the melting and “blowing” or “spinning” of calcined koalin clay or a combination of alumina (Al2O3) and silica (SiO2). Oxides such as zirconium oxide (zirconia), ferric oxide, calcium oxide, and alkali oxides may be added. The approximate percentage of components (by weight) may vary as follows: Alumina, 20 to 80 percent, silica, 20 to 80 percent; zirconia, 0 to 20 percent; and other oxides, approximately 1 to 5 percent. Fiber diameters within products range from approximately 0.06 microns to greater that 3 microns; lengths also vary and are dependent on the processing used.

Announced Receipt of Test Data

Test data describing workplace exposure monitoring data from three member companies of the Refractory Ceramic Fiber Coalition (RCFC) (Carborundum Company, Premier Refractories and Chemicals, Incorporated, and Thermal Ceramics Incorporated) as well as from their customers’ facilities were submitted pursuant to a Consent Order and received by EPA on December 21, 1993 (59 FR 747; January, 6, 1994).

Test data describing workplace exposure monitoring data from three member companies of the Refractory Ceramic Fiber Coalition (RCFC) (Carborundum Company, Premier Refractories and Chemicals, Incorporated, and Thermal Ceramics Incorporated) as well as from their customers’ facilities were submitted pursuant to a Consent Order and received by EPA on June 27, 1994 (59 FR 35120; July 8, 1994).

Test data describing workplace exposure monitoring data from three member companies of the Refractory Ceramic Fiber Coalition (RCFC) (Carborundum Company, Premier Refractories and Chemicals, Incorporated, and Thermal Ceramics Incorporated) as well as from their customers’ facilities were submitted pursuant to a Consent Order and received by EPA on December 23, 1994 (60 FR 1775; January 5, 1995). The customers selected include those chosen at random and those who specifically requested monitoring. Air samples were collected from employees engaged in RCF fiber production and processing or use in functional categories such as forming, finishing, and installation.

Test data describing workplace exposure monitoring data from three member companies of the Refractory Ceramic Fiber Coalition (RCFC) (Carborundum Company, Premier Refractories and Chemicals, Incorporated, and Thermal Ceramics Incorporated) as well as from their customers’ facilities were submitted pursuant to a Consent Order and received by EPA on June 21, 1995 (60 FR 34532; July 3, 1995). The customers selected include those chosen at random and those who specifically requested monitoring. Air samples were collected from employees engaged in RCF fiber production and processing or use in functional categories such as forming, finishing, and installation.

Test data describing workplace exposure monitoring data from three member companies of the Refractory Ceramic Fiber Coalition (RCFC) (Carborundum Company, Premier Refractories and Chemicals, Incorporated, and Thermal Ceramics Incorporated) as well as from their customers’ facilities were submitted pursuant to a Consent Order and received by EPA on January 11, 1996 (61 FR 3936; February 2, 1996). The customers selected include those chosen at random and those who specifically requested monitoring. Air samples were collected from employees engaged in RCF fiber production and processing or use in functional categories such as forming, finishing, and installation.

Test data describing workplace exposure monitoring data from three member companies of the Refractory Ceramic Fiber Coalition (RCFC) (Carborundum Company, Premier Refractories and Chemicals, Incorporated, and Thermal Ceramics Incorporated) as well as from their customers’ facilities were submitted pursuant to a Consent Order and received by EPA on June 23, 1996 (61 FR 47752; September 10, 1996). The customers selected include those chosen at random and those who specifically requested monitoring. Air samples were collected from employees engaged in RCF fiber production and processing or use in functional categories such as forming, finishing, and installation.

Results of Testing Table


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