| Type 1 |
- Application of lead-containing coatings with a brush or roller.
- Removal of lead-containing coatings with a chemical gel or paste and fibrous laminated cloth wrap.
- Removal of lead-containing coatings or materials using a power tool that has an effective dust collection system equipped with a HEPA filter.
- Installation or removal of lead-containing sheet metal.
- Installation or removal of lead-containing packing, babbit or similar material
- Removal of lead-containing coatings or materials using non-powered hand-held tools, other than manual scraping or sanding.
- Soldering.
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Respirators should not be necessary if general procedures listed in Section 6.1 of the Guideline are followed and if the levels of lead in air are less than 0.05 mg/m3. However, if the worker wishes to use a respirator, a half-mask particulate respirator with N-, R- or P-series filter, and 95, 99 or 100% efficiency should be provided. |
- Washing facilities consisting of wash basin, water, soap and towels should be provided and workers should use these washing facilities before eating, drinking, smoking or leaving the project;
- Workers should not eat, drink, chew gum or smoke in the work area;
- Dust and waste should be cleaned up at regular intervals and placed in a container that is:
- dust tight
- identified as containing lead waste
- cleaned with a damp cloth or a vacuum equipped with a HEPA filter immediately before being removed from the work area
- removed from the workplace frequently and at regular intervals;
- Drop sheets should be used below all lead operations which produce or may produce dust, chips, or debris containing lead;
- Cleanup after each operation is encouraged to prevent lead contamination and exposure to lead;
- Work area should be inspected at least daily to ensure that the work area is clean;
- Compressed air or dry sweeping should not be used to clean up any lead-containing dust or waste from a work area or from clothing.
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| Type 2a |
- Welding or high temperature cutting of lead-containing coatings or materials outdoors. This operation is considered a Type 2a operation only if it is short-term, not repeated, and if the material has been stripped prior to welding or high temperature cutting.
- Removal of lead-containing coatings or materials by scraping or sanding using non-powered hand tools
- Manual demolition of lead-painted plaster walls or building components by striking a wall with a sledge hammer or similar tool
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Half-mask particulate respirator with N-, R-, or P-series filter and 95, 99 or 100 percent efficiency
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(In addition to Type 1 measures and procedures.)
- Signs should be posted in sufficient numbers to warn of the lead hazard. There should be a sign, at least, at each entrance to the work area. The signs should display the following information in large, clearly visible letters:
- There is a lead dust, fume or mist hazard.
- Access to the work area is restricted to authorized persons.
- Respirators must be worn in the work area.
- Suitable protective clothing and equipment should be worn by every worker who enters the work area (refer to Section 4.3 of the guideline).
|
| Type 2b |
- Spray application of lead-containing coatings.
|
Powered air purifying respirator equipped with a hood or helmet, and a high efficiency filter.
OR
Supplied air respirator equipped with a hood or helmet and operated in a continuous flow mode. |
| Type 3a |
- Welding or high temperature cutting of lead-containing coatings or materials indoors or in a confined space.
- Burning of a surface containing lead.
- Dry removal of lead-containing mortar using an electric or pneumatic cutting device.
- Removal of lead-containing coatings or materials using power tools without an effective dust collection system equipped with a HEPA filter.
- Removal or repair of a ventilation system used for controlling lead exposure.
- Demolition or cleanup of a facility where lead-containing products were manufactured.
- An operation that may expose a worker to lead dust, fume or mist that is not a Type 1, Type 2, or Type 3b operation.
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Full-facepiece air-purifying respirator equipped with N-, R-, or P-series filter and 100% efficiency.
OR
Tight-fitting PAPR with a high efficiency particulate filter.
OR
Half-mask or full-facepiece supplied air respirator operated in a continuous flow mode.
OR
Half-mask supplied air respirator operated in pressure-demand or other positive-pressure mode.
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(In addition to Type 1 and Type 2 measures and procedures.)
- For Type 3a operations conducted indoors or outdoors, enclosures should be provided in the form of barriers, partial enclosures, or full enclosures.
- For Type 3b operations conducted indoors, full enclosures should be provided.
- With the exception of dry abrasive blasting conducted outdoors, enclosures provided for all other Type 3b operations conducted outdoors should be in the form of barriers, partial enclosures, or full enclosures. For dry abrasive blasting outdoors, full enclosures should be provided.
- Where there is an enclosure, general mechanical ventilation should be provided.
- A decontamination facility (refer to 6.4.3 of the guideline) should be made available for workers carrying out the following operations:
- abrasive blasting of lead-containing coatings or materials
- the removal of lead-containing coatings or materials using power tools without an effective dust collection system equipped with a HEPA filter
- removal of lead-containing dust using an air mist extraction system
- demolition or cleanup of a facility where lead
- containing products were manufactured.
- When abrasive blasting is finished, dust and waste should be cleaned up and removed by vacuuming with a HEPA filter equipped vacuum, wet sweeping and/or wet shovelling.
- Where a dust generating operation is carried out, local exhaust ventilation should be provided to remove dust at the source. Wet methods should also be incorporated in the operation to reduce dust generation.
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| Type 3b |
Abrasive blasting of lead-containing coatings or materials.
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Type CE abrasive-blast supplied air respirator operated in a positive-pressure mode with a tight-fitting half-mask facepiece.
Type CE abrasive-blast supplied air respirator operated in a pressure-demand or positive pressure mode with a tight-fitting full-facepiece
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| Removal of lead-containing dust using an air mist extraction system |
Supplied air respirator equipped with a tight-fitting half-mask or full-facepiece and operated in pressure demand or positive pressure mode. |
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