NYC-WTC_000224877

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client Name: NYC BOE Volume (liters): 1920 r Lab Group #: 7425 Filter Type / Filter Area: MCE 385 mm^ Lab Sample #: 2 Grid Opening Size: 0.01124 Client Sample #: 05 Area Examined: 0.04496 mm^

GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 4/15/02 Analysis Performed By: Jr

ROMAN PEYSAKHOV

GO. Structure Structure Type Length ID of Structure A or 7 EDS No (Nonadb F B C M >=05 p :>=5p Chrys Amphibole Nonasb Ambig/ND Elements) No Coord <5p

/ (£7 <7 fl

Struct = > 0.5u > 5:1 Aspect Ratio Grid acceptance;

V = 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 I >5p 7= EDS soectrum conforming to laboratory holes or opaque areas identification criteria observed Chrysotile ' AMPHIBOLES Amphibole F = Single Fiber Amosite B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous

C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos Tremolite M - Matrix Actinolite Non-Identified NSO = No Structures Detected

CITY_21MC100_0 02894770

NYC-WTC_000224877