NYC-WTC_000149537
Instructions and sections for collecting sample location data from a specific building interior.
22 shared non-person entities · 1 shared topics · similarity 0.970
machine-extracted · confidence unavailable · Check page ↗Document / 318 pages
Law Department notice on WTC document preservation, Oct 2001
Machine-extracted title · confidence 95%Notice from NYC Law Department instructing staff to preserve World Trade Center documents for potential legal actions.
NYC-WTC_000145027–000145344Folder label: “NO INFO”
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NYC 9/11 Public Portal Document
likelihood of cleaned portions of the ventilation system being re-contaminated if the system is reactivated at the end of the work shift.
9.2 Additional precautions that may be used to protect cleaned surfaces of the ventilation system from being re-contaminated by uncleaned ventilation system surfaces. These may include: 1) the installation of temporary duct blanks or zoning devices to separate cleaned sections, and 2) installation of temporary air filters.
10.0 PRODUCTS
10.1 Encapsulants; Ventilation system encapsulation products shall be for specific use in ventilation systems and applied per manufacturer's instructions. Encapsulants shall be water-based, with low VOC (volatile organic compound) emissions, and meet NFPA smoke development and flame spread requirements for HVAC system products.
10.1.1 Ventilation system/duct cleaning firm shall maintain on-site MSDS copies for any encapsulant product used in the ventilation system.
10.1.2 Ventilation system/duct cleaning firm will apply product in strict compliance with manufacturer's recommended safety precautions for Ventilation system/duct cleaning firm's personnel and building occupants.
10.1.3 Ventilation system/duct cleaning firm shall comply with any applicable federal, state, or local regulations regarding the use of such products.
10.2 Cleaning Chemicals: Any chemicals used in cleaning ventilation system components (i.e. chemical cleaners, degreasers, etc.) shall be applied per manufacturer's instructions.
10.2.1 Ventilation system/duct cleaning firm shall maintain on-site MSDS copies for any cleaning chemical used in the ventilation system.
10.2.2 Ventilation system/duct cleaning firm shall comply with any applicable federal, state, or local regulations regarding the use of such products.
11.0 EXECUTION
11.1 Preparation - General
11.1.1 Project Orientation/Preparation: Ensure that a site examination has been performed in accordance with Section 5.0 of this document.
11.1.1.1 Task Coordination: A pre-task performance meeting shall be conducted for the project.
11.1.1.2 Walk-through: Visually inspect the ventilation system prior to the start of work and note any mechanical modifications. Note location of all electrical panels for fuse reset. Note condition of fans, visible buildups, and accessible ductwork.
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NYC-WTC_000145213
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NYC-WTC_000145213Source: NYC Law Department, mirrored locally
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machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000155394
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machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000164784
Transmission of revised asbestos sampling results for residential samples collected November-December 2001.
15 shared non-person entities · similarity 0.964
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000125845
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25 shared non-person entities · similarity 0.964
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