NYC-WTC_000225311

NYC 9/11 Public Portal Document

TEMAsbeitoslair) Count Sheet Client Name: NYC BOE Voltiine (liters): 1928 Lab Group #: 69-34 FiltejiTAjieVJiiiterjVe^ MCE 3S5 mm- Lab Sample #: 5 GridOpeiiinoSi^ 0.01124

Client Sample #: Area Examined: 0.04496 mm-

GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 3/5/02

Analysis Performed By: ROMAN PEYSAKHOV

GO, Structure Structure Type Length ID of Structure N or v EDS No (Nonadb F B C M >=05 p Chrys Amphibole ! Monasb Ambig/ND No Coord <5u Elements)

S'l~' i

Struct = > 0.5p > 5:1 Aspect Ratio Grid acceptance:

Positive diffraction pattern properties conforming to <50% undissolvec filler overlapped or folded Totals laboratory identification criteria observed <10% particulate coverage >50% coverage ate leasi 20 unfolded or overlapped grid squares <5% B C M >5p >/= EDS spectrum conforming to laboratory holes or opaque areas identification criteria observed ChfvsDtile i AMPHIBOLES .-Xinpiiiliolc : F = Single Fiber Amosite B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite AmbiuuDus i

C = Cluster (>3 Intersections) Anthophyllite Non-Asbesios 1 Tremolite M = Matrix Non-ldciiiilifd ) Actinolite NSD = No Structures Detected

CITY_21MC100_002921320

NYC-WTC_00022531 1