Emerson Process Management IM-106-340 instruction manual Concentration

Oxymitter 4000

Instruction Manual

IM-106-340, Rev. 4.0 May 2006

IARC has recently reviewed the animal, human, and other relevant experimental data on silica in order to critically evaluate and classify the cancer causing potential. Based on its review, IARC classified crystalline silica as a group 2A carcinogen (probable human carcinogen).

The OSHA permissible exposure limit (PEL for cristobalite is 0.05 mg/m3 (respirable dust). The ACGIH threshold limit value (TLV) for cristobalite is 0.05 mg/m3 (respirable dust) (ACGIH 1991-92). Use NIOSH or MSHA approved equipment when airborne exposure limits may be exceeded. The minimum respiratory protection recommended for given airborne fiber or cristobalite concentrations are:

CONCENTRATION

Concentration

0-1 fiber/cc or 0-0.05 mg/m3 cristobalite (the OSHA PEL)

Up to 5 fibers/cc or up to 10 times the OSHA PEL for cristobalite

Up to 25 fibers/cc or 50 times the

OSHA PEL for cristobalite (2.5 mg/m3)

Greater than 25 fibers/cc or 50 times the OSHA PEL for cristobalite (2.5 mg/m3)

Personal Protective Equipment

Optional disposable dust respirator (e.g. 3M 9970 or equivalent).

Half face, air purifying respirator equipped with high efficiency particulate air (HEPA)filter cartridges (e.g. 3M 6000 series with 2040 filter or equivalent).

Full face, air purifying respirator with high efficiency particulate air (HEPA) filter cartridges (e.g. 3M 7800S with 7255 filters or equivalent) or powered air purifying respirator (PARR) equipped with HEPA filter cartridges (e.g. 3M W3265S with W3267 filters or equivalent).

Full face, positive pressure supplied air respirator (e.g. 3M 7800S with W9435 hose

&W3196 low pressure regulator kit connected to clean air supply or equivalent).

If airborne fiber or cristobalite concentrations are not known, as minimum protection, use NIOSH/MSHA approved half face, air purifying respirator with HEPA filter cartridges.

Insulation surface should be lightly sprayed with water before removal to suppress airborne dust. As water evaporates during removal, additional water should be sprayed on surfaces as needed. Only enough water should be sprayed to suppress dust so that water does not run onto the floor of the work area. To aid the wetting process, a surfactant can be used.

After RCF removal is completed, dust suppressing cleaning methods, such as wet sweeping or vacuuming, should be used to clean the work area. If dry vacuuming is used, the vacuum must be equipped with HEPA filter. Air blowing or dry sweeping should not be used. Dust suppressing components can be used to clean up light dust.

Product packaging may contain product residue. Do not reuse except to reship or return Ceramic Fiber products to the factory.

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