THE MANUAL CONTAINS OVER 100 PAGES OF INFORMATION, DRAWINGS AND OSHA REQUIRED DOCUMENTS

STANDARD OPERATING WORK PRACTICES

(THE BELOW PRACTICES CAN BE EDITED FOR YOUR COMPANY)

Many small and variable details are involved in the erection of a negative pressure enclosure. These criteria are set out in the detail sheets attached in appendix 1. In addition, none of the criteria, both mandatory and recommended, are meant to specify or imply the need for use of patented or licensed methods or equipment. Recommended specifications included in this attachment should not discourage the use of creative alternatives, which can be shown to reliably achieve the objectives of negative-pressure enclosures and end state of the project..

Requirements included in this section, cover general provisions to be followed in all microbial jobs, provisions that must be followed for all growths above 10 square feet, and provisions governing the construction and testing of negative pressure enclosures. The first category includes the requirement for use of wet methods, HEPA vacuums, and immediate bagging of waste; Microbial Abatement must conform to the following provisions:

 *   Oversight by competent person

 *   Use of critical barriers over all openings to work area

 *   Isolation of HVAC systems

 *   Use of impermeable drop cloths and coverage of all objects within

     Regulated areas

 In addition, more specific requirements for NPEs (Negative Pressure Enclosure) include:

 *   Maintenance of -0.02 inches water gauge within enclosure

 *   Manometric measurements

 *   Air movement away from employees performing removal work

 *   Smoke testing or equivalent for detection of leaks and air

     direction

 *   Deactivation of electrical circuits, if not provided with

     ground-fault circuit interrupters.

Planning the Project

The section requires that an exposure assessment be conducted before the Microbial job is begun. Information needed for that assessment, includes data relating to prior similar jobs, as applied to the specific variables of the current job. The information needed to conduct the assessment will be useful in planning the project. Thus, although the standard does not explicitly require the preparation of a written microbial removal plan, the usual constituents of such a plan, i.e., a description of the enclosure, the equipment, and the procedures to be used throughout the project, must be determined before the enclosure can be erected. The following information should be included in the planning of the system:

·         A physical description of the work area;

·         A description of the approximate amount of material to be removed;

·         A schedule for turning off and sealing existing ventilation systems;

·         Personnel hygiene procedures;

·         A description of personal protective equipment and clothing to be worn by employees;

·         A description of the local exhaust ventilation systems to be used and how they are to be tested;

·         A description of work practices to be observed by employees;

·         An air monitoring plan (Furnished by the CIH, IH, IAQ, etc..;

·         A description of the method to be used to transport waste material; and

·         the location of the dumpsite.

1.      Materials and Equipment Necessary for Microbial Removal

Although individual microbial removal projects vary in terms of the equipment required to accomplish the removal of the materials, some equipment and materials are common to most microbial removal operations.

Plastic sheeting used to protect horizontal surfaces, seal HVAC openings or to seal vertical openings and ceilings should have a minimum thickness of 4 mils. Tape or other adhesive used to attach plastic sheeting should be of sufficient adhesive strength to support the weight of the material plus all stresses encountered during the entire duration of the project without becoming detached from the surface.

Other equipment and materials, which should be available at the beginning of each project, are:

 -- HEPA Filtered Vacuum is essential for cleaning the work area after

    the growth has been removed. It should have a long hose capable of

    reaching out-of-the-way places, such as areas above ceiling tiles,

    behind pipes, etc.

(THIS IS ONLY A SMALL SAMPLE OF THE COMPLETE  MANUAL)

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Copyright © 2005 Mold Remediation Standard Operating Procedures Manual
Last modified: 01/29/06