NYC-WTC_000196844

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters): 1920 Lab Group #: 9210 Filter Type / Filter Area: MCE 385 mm- Lab Sample #: 11 Grid Opening Size: 0.01124

Client Sample #: 13 Area Examined: 0 04496 mm-

GRID BOX: Magnification: 20,000 GRID ID: y Accelerating Voltage: 100 KeV U Grid Openings: 4 Analysis Date: 12/26/200

Analysis Performed By: MARK PEYSAKHOV

i GO Structure Structure Type Length ID of Structure N or '/ £DS No (Nonaob F B C M >=05 p >=5|j Chrys Amphibole Nonasb Ambig/ND No Coord <5p Elements)

<7 a.

! I....................... Photo No (from 1 in b asbestos containing samp es) Gnd acceptance Struct = > 0.5(j > 5 1 Aspect Ratio <50% undissolved filter, overlapped or folded Totals 'J- Positive diffraction oattern properties conforming to <10% particulate coverage >50% coverage ate laooratory identification cntena observed least 20 unfolded or ovedapped grid squares <5% holes or opaque areas F B C v= EDS soectoim conforming to laboratory Identification criieria ooserved Chrysotile I AMPHIBOLES , Amphibole F = Single Fiber Amosite 3 = Bundle (<3 fibers <1 liber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections) Anthophyllite Tremolite | Non-Asbestos M = Matrix Actinolite Non-Identified NSD = No Structures Detected

CITy_21MC100_003043181

NYC-WTC_000196844