NYC-WTC_000205130

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters): 1805 Lab Group #: 9090 Filter Type / Filter Area: MCE 385 mm- Lab Sample #: 13 Grid Opening Size: 0 01124

Client Sample #: 15 Area Examined: 0 04496 mm^ GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 11/11/02

Analysis Performed By: romanYeysakhov

GO Structure Structure Type Length IDofStniclure N or V tos No (Nonadb F B C M >=0571 : =5p Ch^s Amphibole Nonasb Ambig/ND ■ No Coord <5m Elements)

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Photo No (from 1 in 5 asbestos containing samples) Grid acceptance' Struct = > 0 5p > 5 1 Aspect Ratio <50% undissolved filter, overlapped or folded Totals Positive diffraction pattern properties conforming to <10% particulate coverage >50% coverage ate laboratory identfication critena observed least 20 unfolded or overlapped gnd squares <5% F B C M >5|j holes or opaque areas •J- EDS spectrum conforming to laboratory Chrysotile identification cntena observed AMPHIBOLES : Amphibole F = Single Fiber Amosite B = Bundle (<3 fibers <1 fiber diameter apan Crocidolite Ambiguous C = Cluster {>3 Intersecbons) Anthophyllite Non-Asbestos Tremolite M = Matnx Non-Identified Actinolite NSD = No Structures Detected

CITY_21MC100_003058048

NYC-WTC_000205130