NYC-WTC_000202847

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 #: J / Grid Opening Size: 0.01124

Client Sample #: 3/ 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; _______ f \y7 _____ /jn ROMAN PEYSAKHOV

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

\/2- ? Xt- 7 4Z 1 ^^-7- 3Z& // 7^ O 3

,7 R.2 it It P 40 )

■z/ S 77 I____ I

□ i I II'' ' Photo No, (from ' m 5 asbestos containing samples) Qnd acceptance: Struct = > C bp > 5:1 Aspect Ratio <50% undissoivec filter, overlapped or folded Totals v = Positive diffraction pattern properties conforming to <10% particulate coverage >50% coverage ate laboratory identification criteria observed least 20 unfolded or ovedapped grid squares <5% M I >5kJ holes or opaque areas '1= EDS spectrum conforming to laboratory I Chrysotile identificanon crltena observed i .AMPHIBOLES Amphibole j r = Single Fiber .Amosite E = Bundle (<-3 fibers <1 fiber diameter apart Crccidciite Ambiguous i C = Cluster (>3 intersecticns) Anthophyllite Non-Asbestos I Tremolite M = Matrix i Non-Identified I Actinciite NSS = No Structures Delected

CITY_21MC100_003069348

NYC-WTC_000202883