NYC-WTC_000196864

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE V'olume (liters): 1920 Lab Group #: 9210 Filter Type / Filter Area: MCE 385 mnT Lab Sample #: 16 Grid Opening Size: 0 01124 Client Sample #: 18 Area Examined: 0 04496 mm=

GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: too KeV # Grid Openings: 4 Analysis Date: 12/26/200

Analysis Performed By: MARK PEYSAKHOV

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

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i i I i i

I i •' Hhoto No (tram 1 in b asbestos containing samples) Gnd acceptance Struct = > 0 5u >51 Aspect Ratio <50% undissolved filter, overlapped or folded Totals y = Positive ditfraction pattern propenies contorming to • <10% particulate coverage >50% coverage ate laooratory identification criteria observed 'east 20 unfoloed or overlapped grid squares >50 ; <5% holes or opaque areas F B C 7= EDS spectnjm conforming to laboratory Chrysotile identification cnteria observed AMPHIBOLES i F = Single -iber I Amosite Amphibole 3 = Sundle (<3 fibers < 1 fiber diameter aoart Crocidolite Ambiguous Anthophyllite C = Cluster (>3 intersecbons) Tremolite Non-Asbestos M = Matrix Actinolite Non-Identified NSD = No Structures Detected

CITY_21MC100_003057947

NYC-WTC_000196864