NYC-WTC_000202890

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: ATC Volume (liters): 3600 Lab Group #: 9035 Filter Type / Filter Area: MCE 385 mm^ Lab Sample #: 36 Grid Opening Size: 0.01124

Client Sample #: 36 Area Examined: 0.24728 mm-

GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 22 Analysis Date: 10/29/02

Analysis Performed By: ROMAN PEYSAKHOV

GO. Structure Structure Type Length ID of Structure Norv EDS No (Nonadb F B C M >=05 M : ■=5p Chrys Amphibole Nonasb Ambig/ND ) No! Coord <5p Elements)

1-^

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7 I (f ff 1,^' y/ II II 77^ Li

i-i —a--- —if.— n ya If ff

eSZ' Y. 4

! ! I Photo No. (from 1 ir 5 asbestos containing samoies) ’ ' Grid acceptance: struct = > 0.5g > 5:1 Aspect Ratio Totals \ = Positive diffraction pattern properties contomiing Io <10% particulate coverage >50% coverage ate laboratory identification criteria observed least 20 unfolded or overlapped grid squares <5% C i M >5p holes or opaque areas F i B 9= EDS spectrum conforming so laboratory Chrysotile identification cnterta observed . AMPHIBOLSS Amphibole ! F = Single Fiber Amosite S = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections) Anthoohyllite Non-Asbestos Tremolite M = Matnx Non-Identified Actinolite NSD = No Structures Detected

CITY_21MC1OO_OO3O69469

NYC-WTC_000202925