NYC-WTC_000191965

NYC 9/11 Public Portal Document

TEMAsbestosJ^irlCount Sheet Client Name: NYC BOE Volume (liters): 1936 Lab Group #: 8263 Filter Type / Filter Area: MCE 385 mm^ Lab Sample #: 16 Grid Opening Size: 0.01124 Client Sample #: 16 Area Examined: 0.04496

GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 6/24/02

Analysis Performed By: \\ f ROMAN PEYSAKHOV

GO. Structure Structure Type Length ID of Structure Nor^ EDS No (Nonadb F B C M >=05 p Chrys Amphibole Nonasb Ambig/ND Z21 No Coord <5p Elements)

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Struct = > 0.5(1 .>5:1 Aspect Ratio Grid acceptance: Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded Totals laboratory identification criteria observed <10% particulate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% F B C M >5u 'J- EDS spectrum conforming to laboratory holes or opaque areas identification criteria observed Chrysotile AMPHIBOLES Amphibole. F = Single Fiber Amosite S = Bundle {<3 fibers <1 fiber ciameter apart Crocidolite Ambiguous C = C luster (>3 Intersections) Anthophyllite Non-Asbestos M = Matrix Tremolite Actinolite Non-Identified NSD - No Structures Detected

CITY_21MC100_003092015

NYC-WTC_000191965