NYC-WTC_000201872

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client Name: NYC BOE Volume (liters): 1840 Lab Group #: 6555 Filter Type / Filter Area: MCE 385 miM T.ab Sample #: ■ 12 Grid Opening Size: 0.01124

Client Sample #: 12 Area Examined: 0.04496 mitf

GRID BOX: Magnitlcation: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: ’ 2/4/02

Analysis Performed By: MARK PEYSAKHOV

GO. Structure Structure Type Length ID oi Structure Nor v EDS No (Noradb F B C M- >=05 p Chrys Amphibole \ ' Nonasb Arribig/ND Elements’) <5p

3 A

, Struct = >.0.5p >5:1 Aspect Ratio Grid acceptance: . 2- Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded Totals laboratory identification criteria observed <10% particuiate coverage >50% coverage ate least20 unfolded or overlapped grid squares <5% F B C. M >5p 4= EDS spectrum conforming to laboratory holes or opaque areas identification criteria observed Chiysotile AMPHIBOLES Amphibole F = Single Fiber 1 Amosite I B = Bundle (<3 fibers <1 fiber diameter apart ! Crocidolite 1 Ambiguous C = Cluster (>3 intersections) Anthophyllite Non-Asbestos Tremolite M = Matrix Non-Identified Actinolite NSD = No Structures Detected

CITY_21MC100_003269351

NYC-WTC_000201872