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SSPC-Guide 6
<br />October 1, 2004
<br />b. Load bearing capacity and integrity of the containment
<br />system and of the structure. NOTE: Containment
<br />systems may need to be reviewed by a registered
<br />professional engineer prior to erection and use to
<br />confirm the structural adequacy of the containment
<br />and the effect of various loads imposed.
<br />c. Size and elevation of structure (e.g., elevated water
<br />tank, small secondary bridge, etc.).
<br />d. Location of structure (e.g., rural, urban, over water,
<br />etc.).
<br />e. Proximity to other buildings, structures, operating
<br />equipment, and traffic. Tight confines may not permit
<br />the construction of certain containment devices.
<br />f. Local climate (e.g., heavy winds, rain, snow, etc.).
<br />g. Permitting. The construction of containment devices
<br />may be regulated by codes.
<br />h. Construction of structure (such as riveted or welded).
<br />On certain structures, the welding of containment
<br />system brackets adjacent to riveted seams should
<br />be avoided.
<br />i. Additional work to be performed inside containment
<br />(e.g., the control of paint overspray).
<br />4.3 SELECTING METHODS FOR ASSESSING THE
<br />QUANTITY OF EMISSIONS
<br />4.3.1 The specifier should select one or more of the fol-
<br />lowing methods for monitoring the amount of dust or debris
<br />that escapes the work area.These methods are described in
<br />Section 5.5.
<br />Method A: Visible Emissions
<br />Method B:
<br />Ambient Air Monitoring for PM-10
<br />Method C:
<br />Occupational Monitoring of Area Emissions
<br />of Lead
<br />Method D:
<br />AmbientAir Monitoring forToxic Metals (TSP
<br />Lead)
<br />Method E:
<br />Soil Analysis for Toxic Metals
<br />Method F:
<br />Water and Sediment Analysis for Toxic Metals
<br />Method G:
<br />Visuai Assessment of Site Cleanliness
<br />4.3.2 If one or more of the methods is specified, the
<br />specification should identifythe method selected, the frequency
<br />and duration of the tests that wiil be employed, the location of
<br />the monitors (in the case of instrument monitoring), and the
<br />acceptance criteria.
<br />4.4 IMPLEMENTiNG CONTAINMENT PROJECT
<br />4.4.1 Preparation of Written Specification: The specifier
<br />should incorporate the information derived in 4.1 through 4.3
<br />in a written document that clearly defines what is required of
<br />the contractor, what is to be furnished by the owner, and how
<br />the work will be evaluated. It is also recommended that the
<br />specifier identify applicable regulations, codes, ordinances,
<br />etc., and the associated enforcement agencies. In addition,
<br />the document should include names of key contacts and provi-
<br />sions for resolving disputes.
<br />4.4.21mplementation of Contalnmentand Monitoring:
<br />The owner should assure that the work is monitored as described
<br />above (see also Sections 9 and 10 of SSPC-PA Guide 5). A
<br />high level of involvement by the owner eitherdirectly orthrough
<br />knowledgeable designates should be maintained throughout
<br />the course of the project. Because of the newness of much
<br />of this technology, there is often a need to modify the specific
<br />terms of the specification, such as the paint removal methods
<br />employed, the design and construction of the containment, and
<br />the methods for monitoring the emissions.
<br />4.4.3 Project Documentation: It is vital that the facility
<br />owner be provided with accurate and complete records of all
<br />the documents and activities including specifications, inspec-
<br />tion and work reports, change orders, weather conditions,
<br />various mitigating factors, contractor suppliers, activities by
<br />regulatory agencies in monitoring orguiding the work, disposal
<br />records and test results and data derived from containment,
<br />ventilation, air, soil, and other monitoring. These records and
<br />data are invaluable in evaluating the qualiry of the work and in
<br />determining conformance with the specifications. In addition,
<br />they can be added to the database being developed by the
<br />protective coatings industry on the most cost-effective and
<br />efficient means of debris containment.
<br />4.4.4 Disposal of Debris: Surface preparation debris
<br />(e.g., spent abrasives and containment materials that cannot
<br />be reused), must be disposed of in accordance with Federal
<br />and state regulations on solid and hazardous waste. For more
<br />information, see SSPC-Guide 7.
<br />4.4.5 Cleaning of Reusable Equipment and Materials:
<br />Loose surtace lead dust should be removed from equipment,
<br />containment materials, and other reusable items prior to
<br />transportation off-site.
<br />5. Descriptions of Methods and Systems
<br />5.1 METHODS OF COATING REMOVAL: The following
<br />is a list of inethods that can be used successfully to remove
<br />coatings and to collect the debris. Mists, dusts, and debris cre-
<br />ated may or may not contain toxic metals. All waste discharges
<br />should be tested for toxic metals. The list is not considered to
<br />be ali-inclusive, as new and innovative methods are continu-
<br />ally being developed.
<br />5.1.1 Hand Tool Cleaning: Includes chipping hammers,
<br />scrapers, wire brushes, and sandpaper.
<br />5.1.2 Power Tool Cleaning: Includes power operated
<br />wire brushes, sanders, scrapers, grinders, descalers, needle
<br />guns, and rotary peening equipment.
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