NYC-WTC_000207917

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters): 1920 Lab Group #: 9205 Filter Type / Filter Area: MCE 385 mm- Lab Sample #: 1 Grid Opening Size: 0.01124

Client Sample #: 03 Area Examined: 0.04496 mm-

GRIB BOX: Magnification: 20.000 GRID ID: Accelerating Voltage: 100 KeV Grid Openings: 4 Analysis Date: 12/23/200

Analysis Performed By: ROMAN PEYSAKHOV

GO. Structure Structure Type Length ID of Structure N or >/ EDS No (Nonadb F B C M >-05 J >=5(j Chrys Amphibole Nonasb Ambig/ND Elements) No <5|J

3i^ JL JL if

T I T

I i ! I I 1 1 i i^hoio No (from 1 in b asbestos containing samp es) Gnd acceptance: Siruc: = > O.Spj > 5.1 Aspect Ratio <50% undissolved filter, overlapped or folded Totals yA Positive diffraction pattern properaes conforming to <10% particulate coverage >50% coverage ate laooratory idendfication criteria observed least 20 unfolded or overlapped grid squares <5% holes or opaque areas F B C M y- EDS soectrum conforming to laooratory identification critena observed Chrysotile ! amphiboles"" Amphibole r = Single Fiber Amosite E = 3unole (<3 fibers <1 fiber oiameter aoart Crocidolite Ambiguous C = Cluster (>3 Intersections) I Anthophyllite Tremolite Non-Asbestos M = Matrix Actinolite Non-Idennfied NSO = No Structures Detected

CITY_21MC100_003017182

NYC-WTC_000207917