NYC-WTC_000125070
Contractor requirements and site plan notes for demolition work at 30 Cedar Street.
1 shared non-person entities · Same agency, volume and box · similarity 0.943
machine-extracted · confidence unavailable · Check page ↗Document / 105 pages
Air sampling protocol document, 130 Cedar Street, Jan 2005
Machine-extracted title · confidence 100%Protocol document outlining air sampling and monitoring procedures for 130 Cedar Street.
NYC-WTC_000125098–000125202Folder label: “130 CEDAR STREET”
Page image
OCR text
OCR status: ok · source: pdftotext
NYC 9/11 Public Portal Document
130 Cedar Street July 15, 2004 Selective Demolition and Façade Restoration Koenen Associates
2.3 MORTAR MATERIALS
0 A. See specification in Section 04200 Unit Masonry
2.4 CLEANING MATERIALS
A. Water for Cleaning: Potable.
B. Hot Water. Heat water to a temperature of 140 to 160 deg F (60 to 71 deg C).
C. Job-Mixed Detergent Solution: Solution prepared by mixing 2 cups (0.5 L) of tetrasodium polyphosphate (TSPP), 1/2 cup (125 mL) of laundry detergent, and 20 quarts (20 L) of hot water for every 5 gal. (20 L) of solution required.
D. Job-Mixed Mold, Mildew, and Algae Remover: Solution prepared by mixing 2 cups (0.5 L) of tetrasodium polyphosphate (TSPP), 5 quarts (5 L) of 5 percent sodium hypochlorite (bleach), and 15 quarts (15 L) of hot water for every 5 gal. (20 L) of solution required.
E. Nonacidic Gel Cleaner: Manufacturer's standard gel formulation, with pH between 6 and 9, that contains detergents and chelating agents and is specifically formulated for cleaning masonry surfaces.
1. [Available ]Products:
• a. Price Research, Ltd.; Price Marble Cleaner-Gel. b. ProSoCo; Sure Klean 942 Masonry Cleaner. c. <Insert manufacturer's name; product name or designation.>
F. Nonacidic Liquid Cleaner: Manufacturer's standard mildly alkaline liquid cleaner formulated for removing mold, mildew, and other organic soiling from ordinary building materials, including polished stone, brick, aluminum, plastics, and wood. 1. Products: a. ProSoCo; Enviro Klean Restoration Cleaner.
G. Mild Acidic Cleaner Manufacturer's standard mildly acidic cleaner containing no hydrochloric, hydrofluoric, or sulfuric acid; or chlorine bleaches.
1. Products:
a. ProSoCo; Sure Klean Light-Duty Restoration Cleaner.
H. Acidic Cleaner. Manufacturer's standard acidic masonry restoration cleaner composed of hydrofluoric acid blended with other acids, detergents, wetting agents, and inhibitors.
1. Products:
S CLAY MASONRY RESTORATION AND CLEANING 04901 -6
NYC-WTC 000125173
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NYC-WTC_000125173Source: NYC Law Department, mirrored locally
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