NYC-WTC_000230084

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client Name: NYC BOE Volume (liters): 1936 Lab Group #: 7204 Filter Type / Filter Area: MCE 385 mnV Lab Sample #: 7 Grid Opening Size: 0.01124 Client Sample #: 7 Area Examined: 0.04496 mm^ GRID BOX: Magnification: 20,000 GRID ID: Accelerating VoItage: 100 KeV # Grid Openings: 4 Analysis Date: 3/25/02

Analysis Performed By; /Q ROMAN PEYSAKHOV

GO. Structure Structure Type Length ID of Structure NorV EDS No (Nonadb F B C M >=05 p :>=5p Chrys Amphibole Nonasb AmbigZND No Coord <5p Elements)

2 I

Struct = >0.5p .>5:1 Aspect Ratio Grid acceptance: 7= Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or lolded Totals laboratory identification criteria obsenred <10% particulate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% F B C M >5p EDS specirum conforming to laboratory holes or opaque areas identification criteria observed Chrysotile AMPHIBOLES Amphibole F - Single Fiber Amosite S = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections) ■ Anthophyllite Non-Asbestos Tremolite M = Matrix Non-Identified Actinolite NSO = No Structures Detected

CONFIDENTIAL, CITY_21MC100_003388720 SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008

NYC-WTC_000230084