NYC-WTC_000229119

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters): 1896 Lab Group #: 7901 Filter Type/Filter Area: MCE 385 mtn’ Lab Sample #; 3 Grid Opening Size: 0.01124 Client Sample #: 05 Area Examined: 0.04496 mm’ GRID BOX; Ma^nifieatjon; 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 5/29/02

Analysis Performed By: ROMAN PEVSAKHOV

GO. Structure Structure Type, ' Length IDcfStructere Nor v EDS No (Nonadb F B C M >=05 M I ;>s5p Chfys Amphibole Nona^ Ambig/NO //) Coord <5p Elements)

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Struct = > 0.5p >5:1 Aspect Ratio Grid acceptance: d* Positivediffraction pattern properties conforming to <50% cndissoked filter, overlapped or folded Totals <10% particulate coverage >50% coverage ate laboratffly identificaiion criteria observed least 20 unfolded or overtapped grid squares <5% F B C M >5m '/= EDS spectrum conforming to latwratory holes or opaque areas identification criteria observed Chrysotile AMPHIBOLES Amphibole F = Single Fiber Amosite Crocidolite Ambiguous B = Bundle (<3 fibeis <1 fiber diameter apart C - Cluster (>3 Intersections) Anthophyllite Non-Asbestos Tremolite M = Matrix Actinolite Non-Identified USD = Mo Structures Detected

CITY_21MC100_002902236

NYC-WTC_000229119