NYC-WTC_000223701

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters): 1920 I Lab Group #: 7425 Filter Type / Filter Area: MCE 385 mm- ! Lab Sample #: 7 Grid Opening Size: 0.01124

Client Sample #: 10 Area Examined: 0 04496 mm-

GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: loO Ke\ # Grid Openings: 4 Analysis Date: 415 02

Analysis Performed Bv: ROMAN PEYSARHOV

GO Structure Structure Type Length ID cf Structure N or v EDS ''Nonadt No F B C M >=05 M Chrys Amphibole Nonasb Ambig/ND । No Coord <5p I Elements)

ZS ____ ____ -4—

I

Struct = >0.5p >5:1 Aspect Ratio Grid axeptance:

7= Positive diffraction pattern properties conforming to <50% undissolved filler, overlapped or folded Totals laboratory identification cntena observed <10% particulate coverage >50% coverage ate least 20 unfolded or overlapped gnd squares <5% f i F ! B i C i M 7= ECS spectrum conforming to laboratory holes or opaque areas identification cntena observed Chn’sotile \ AMPHIBOLES .Amphibole i - Single Fiber Amosite 3 = Bundle (<3 fibers <1 fiber diameter apar Crocidolite Ambiguous i C = Cluster i>3 iniersectionsi Anthophyllite Non-Asbestos ; Tremolite M - Matrix Actinolite \on-Identified i NSO = No Structures Detected

CITY_21MC100_002919779

NYC-WTC_000223701