Appendix F

Regulations (Standards - 29 CFR)

Work practices and engineering controls for automotive brake and
clutch inspection, disassembly, repair and assembly -- Mandatory
- 1910.1001 App F
Regulations (Standards - 29 CFR) - Table of Contents

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Part Number:
Part Title:
Subpart:
Subpart Title:
Standard Number:
Title:

1910
Occupational Safety and Health Standards
Z
Toxic and Hazardous Substances
1910.1001 App F
Work practices and engineering controls for automotive
brake and clutch inspection, disassembly, repair and
assembly -- Mandatory

This mandatory appendix specifies engineering controls and work practices that must be
implemented by the employer during automotive brake and clutch inspection, disassembly,
repair, and assembly operations.
Proper use of these engineering controls and work practices by trained employees will reduce
employees' asbestos exposure below the permissible exposure level during clutch and brake
inspection, disassembly, repair, and assembly operations. The employer shall institute
engineering controls and work practices using either the method set forth in paragraph [A] or
paragraph [B] of this appendix, or any other method which the employer can demonstrate to
be equivalent in terms of reducing employee exposure to asbestos as defined and which
meets the requirements described in paragraph [C] of this appendix, for those facilities in
which no more than 5 pairs of brakes or 5 clutches are inspected, disassembled, reassembled
and/or repaired per week, the method set forth in paragraph [D] of this appendix may be
used:
[A] Negative Pressure Enclosure/HEPA Vacuum System Method
(1) The brake and clutch inspection, disassembly, repair, and assembly operations shall be
enclosed to cover and contain the clutch or brake assembly and to prevent the release of
asbestos fibers into the worker's breathing zone.
(2) The enclosure shall be sealed tightly and thoroughly inspected for leaks before work
begins on brake and clutch inspection, disassembly, repair, and assembly.
(3) The enclosure shall be such that the worker can clearly see the operation and shall
provide impermeable sleeves through which the worker can handle the brake and clutch
inspection, disassembly, repair and assembly. The integrity of the sleeves and ports shall be
examined before work begins.

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(4) A HEPA-filtered vacuum shall be employed to maintain the enclosure under negative
pressure throughout the operation. Compressed-air may be used to remove asbestos fibers or
particles from the enclosure.
(5) The HEPA vacuum shall be used first to loosen the asbestos containing residue from the
brake and clutch parts and then to evacuate the loosened asbestos containing material from
the enclosure and capture the material in the vacuum filter.
(6) The vacuum's filter, when full, shall be first wetted with a fine mist of water, then
removed and placed immediately in an impermeable container, labeled according to
paragraph (j)(4) of this section and disposed of according to paragraph (k) of this section.
(7) Any spills or releases of asbestos containing waste material from inside of the enclosure
or vacuum hose or vacuum filter shall be immediately cleaned up and disposed of according
to paragraph (k) of this section.
[B] Low Pressure/Wet Cleaning Method
(1) A catch basin shall be placed under the brake assembly, positioned to avoid splashes and
spills.
(2) The reservoir shall contain water containing an organic solvent or wetting agent. The
flow of liquid shall be controlled such that the brake assembly is gently flooded to prevent
the asbestos-containing brake dust from becoming airborne.
(3) The aqueous solution shall be allowed to flow between the brake drum and brake support
before the drum is removed.
(4) After removing the brake drum, the wheel hub and back of the brake assembly shall be
thoroughly wetted to suppress dust.
(5) The brake support plate, brake shoes and brake components used to attach the brake shoes
shall be thoroughly washed before removing the old shoes.
(6) In systems using filters, the filters, when full, shall be first wetted with a fine mist of
water, then removed and placed immediately in an impermeable container, labeled according
to paragraph (j)(4) of this section and disposed of according to paragraph (k) of this section.
(7) Any spills of asbestos-containing aqueous solution or any asbestos-containing waste
material shall be cleaned up immediately and disposed of according to paragraph (k) of this
section.
(8) The use of dry brushing during low pressure/wet cleaning operations is prohibited.
[C] Equivalent Methods

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An equivalent method is one which has sufficient written detail so that it can be reproduced
and has been demonstrated that the exposures resulting from the equivalent method are equal
to or less than the exposures which would result from the use of the method described in
paragraph [A] of this appendix. For purposes of making this comparison, the employer shall
assume that exposures resulting from the use of the method described in paragraph [A] of
this appendix shall not exceed 0.016 f/cc, as measured by the OSHA reference method and as
averaged over at least 18 personal samples.
[D] Wet Method.
(1) A spray bottle, hose nozzle, or other implement capable of delivering a fine mist of water
or amended water or other delivery system capable of delivering water at low pressure, shall
be used to first thoroughly wet the brake and clutch parts. Brake and clutch components shall
then be wiped clean with a cloth.
(2) The cloth shall be placed in an impermeable container, labeled according to paragraph
(j)(4) of the standard and then disposed of according to paragraph (k) of this section, or the
cloth shall be laundered in a way to prevent the release of asbestos fibers in excess of 0.1
fiber per cubic centimeter of air.
(3) Any spills of solvent or any asbestos containing waste material shall be cleaned up
immediately according to paragraph (k) of this section.
(4) The use of dry brushing during the wet method operations is prohibited.
[59 FR 40964, Aug. 10, 1994; 60 FR 33972, June 29, 1995]

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