NYC-WTC_000218099

NYC 9/11 Public Portal Document

TEM AsbestoslairlCountSh^ Client Name: NYC BOE V olume (liters): Lab Group ff: 6896 Filter Type / Filter Area: Mi/t Lab Sample #: 7 (irid Opening Si/e:

Client Sample #: 02 Area Examined: i.j 04490 IT

GRID BOX: Magnification: 20.000 GRID ID: Accelerating V^oltage: 100 KeV # Grid Openings: 4 AnalysisDate: 3.2/02

Analysis Performed By: ROMAN PEYSAKHOV

GO Structure Structure Type Length ID of Structurfe \ or i EDS

No Coord No F e c M <5p 1 Chrys Amphibole ! i Nonaso T Ambiq.A’D ‘ 1 ■ : j^'ondO- eiemenis; ------i------ 5'TZZE ZEZ

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Struct = > 0 5u >5:1 Aspect Ratio Grid acceptance: x/= Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded Totals laboratory identification cdteria observed <10% particulate coverage >50% coverage ate least 20 unfolded or overlapped gnd squares <5% F j B I C pi , >5u EDS soectrum conforming to laboratory holes or opaque areas ________ I Chrysotile i identification criteria observed AMPHIBOLES Amphibole • F = Single Fiber Amosite Crocidolite Ambiguous • B = Bundle ;<3 fibers <1 fiber diameter apart C = Cluster (>3 intersections) Anthophyllite Non-Asbestos 1 Tremolite M = Matrix Actinolite i Non-Identified i NSC = Nc Structures Detected

CITY_21MC100_000465885 NYC-WTC_000218099