NYC-WTC_000203506

NYC 9/11 Public Portal Document

TEM Asbesfos (air) Count Sheet Client Name: NYC BOE Volume (liters): 1936 Lab Group #: 9204 Filter Type / Filter Area: MCE 385 mnr Lab Sample #: 1 Grid Opening Size: 0.01124

Client Sample #: Area Examined: 0 04496

GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 12/23/200

Analysis Performed By: ROMAN PEYSAKHOV

GO Structure Structure Type Length ID of structure N or n/ EDS No (Nonadb F B C M >=05 p Chrys Amphibole Nonasb Ambig/ND No Coord <5p Elements)

74 7 ^2

rL i r

Photo No (from 1 in 5 asbestos containing samples) acceptance Struct = > 0 5p > 5 1 Aspect Ratio unoissolved filter, overiapped or folded Totals v = Positive diffraction pattern oropenies conforming to <10% particulate coverage >50% coverage ate laooratory identification cntena ooserved least 20 unfolded or overlapped gnd souares >5p i F B C .VI <5% holes or opaque areas \/= EDS spectrum conforming to laboratory Chrysotile ■denufication cntena observed ; AMPHIBOLES 1 .Amphibole A = Single r'ber 1 Amosite 3 = Bundle (<3 fibers <1 fiber diameter apart I Crocidolite .Ambiguous Anthophyllite C = Cluster (>3 Intersections) I Tremolite \on-.Asbestos M = Matnx ! Actinolite Non-Identitied MSC = No Structures Detecteo

CITY_21MC100_003058346

NYC-WTC_000203506