NYC-WTC_000196809

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters): 1928 Lab Group #: 8809 , Filter Type / Filter Area: MCE 385 mm^ Lab Sample #: 5 Grid Opening Size: 0 01124 Client Sample #: 05 Area Examined: 0 04496 mm-

GRID BOX: Magnification: 20,000 ' GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 AnalvsisDate: 9/5/02

Analysis Performed By: -MARK PEYSAKHOV

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

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Struct = > 0 5p .> 5.1 Aspect Ratio Gnd acceptance:

Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded Totals laboratory identification critena observed <10% particulate coverage >50% coverage ate least 20 unfolded or overlapped gnd squares <5% F B C M >5p EDS spectrum conforming to laboratory holes or opaque areas identification cnteria observed Chrysotile rAMPHlBOLES" Amphibole F ■= Single Fiber Amosite B = Bundle {<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos Tremolite M = Matrix Non-ldentified Actinolite NS’D = No Structures Detected

CITY_21MC100_003042947

NYC-WTC_000196809