NYC-WTC_000202572

NYC 9/11 Public Portal Document

TEM Asbesfos (air) Count Sheet Client Name: NYC BOE Volume (liters'): 1920 i Lab Group #: 9210 Filter Type / Filter Area: MCE 385 mm^ Lab Sample #: 8 Grid Opening Size: 0.01124

Client Sample #: 10 Area Examined: 0.044S6 mm- J il GRID BOX: Magnification: 20.000 GRID ID: Accelerating Voltage: 100 KeV il # Grid Openings: 4 Analysis Date: 12/26/200 I ij Analysis Performed By: _ MARK PEYSAKHOV

GO. Structu.'s Structure Type Length ID ot structure y or N EDS No (Ncnadb i F B C M >=05 p :>=51J Chrys Amphibole Nonasb Ambig/ND Elements) i No Coord <5p

i/

Hhoto No. itrcn 1 in q asbestos containing samoles) ~ ond acceptance: Struct = > 0.5p >5:1 .Aspect Ratio undissolved filter, overlapped or folded Tot^ Positive diffraction pattern properties conforming to <10% oarticulate coverage >50% coverage ate iahoratot)' idertiiication criteria observed least 20 unfolded or overlapped grid squares F B C I M <5% holes or opaque areas y = EDS spearum conforming to laboratory Chrysotile i identification criteria observefl AMPHIBOLES i Amphibole F = Single Fiber Amosite E = Bundle (<3 libers <1 fiber diameter apart Crocidolite Ambiguous Anthophyllite C = Cluster (>3 Intersectionsi Tremolite Non-Asbestos M = Matrix Actinolite Non-ldentified NSD = No Structures Detected

CITY_21MC100_003273628

NYC-WTC_000202572