NYC-WTC_000201763

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client Name: NYC BOE Volume flitersT: 1840 Lab Group #: 7031 Filter Type / Filter Area: MCE 385 mm" Lab Sample #: 13 Grid Opening Size: O.Ql 124 Client Sample #: 13i • Area Examined: 0.04496 mm^ GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 3/11/02

Analysis Performed By: ' ROMAN PEYSAKHOV

1 GO. structure Structure Type Length IDefStructufe Nor \ EDS. (Nonadb No F B C >=05 u _ >=5tJ Ghrys Amphibole Nonasb Ambig/ND :i No i Coord' : <5u - Bernents)

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Struct = > 0.5)1 .> 5:1 Aspect Ratio Grid acceptance: V- Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded Totals laboratory identification criteria observed <10% particulate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% F B C M >5p / 'I- EDS spectrum conforming to laboratory < holes or opaque areas identification criteria observed Chrysotile AMPHIBOLES Amphibole F = Single Fiber : Amosite B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C - Cluster (>3 Intersections) Artthophyllite Non-Asbestos 1 i Tremolite M= Matrix ' Actinolite Non-ldentified j NSD =’No Structures Detected ■

CITY_21MC100_003269064

NYC-WTC_000201763