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Document / 146 pages

Chain of Custody Form Instructions for WTC Building Sampling

Machine-extracted title · confidence 100%

Instructions and sections for collecting sample location data from a specific building interior.

NYC-WTC_000149537–000149682

Folder label: “ATSDR/DHAC_ASTM

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Z z o o i 1^ co

“0 o c o CT o o' CD "0 O> o O Ca3

American Society for Testing and Materials - ASTM D5755 o o o c 3 o 3

Limitation (As per ASTM document) • 5.1.1 This test method does not describe procedures or techniques required to evaluate the safety or habitability of buildings with ACM or compliance with federal or state or local regulations or statutes. • 5.1.2 At present, a single relationship between asbestos containing dust and potential human exposure does not exist.

Definition EPA, NYS & NYC does not have any standard for settled dust. The definition for asbestos is any material containing more than 1% as determined using PLM (Polarized Light Microscopy)

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NYC-WTC_000149603Source: NYC Law Department, mirrored locally

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DEP WTC General Correspondence Form · Box DEP Box 10

NYC-WTC_000149798

Generic form or header page from the Department of Environmental Protection regarding general World Trade Center notices and requests.

24 shared non-person entities · Same agency, volume and box · similarity 0.975

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