NYC-WTC_000218344

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE V'olume (liters): 1920 Lab Group #: 6986 Filter Type ! Filter .Crea: MCE 385 mm- Lab Sample #: 6 Grid Opening Size: 0.01124

Client Sample #: 06 Area Examined: 0,04496 mm^

GRID BOX: Magnification: 20.000 GRID ID: Accelerating Voltage: 190 KeV # Grid Openings: 4 .Analysis Date: 3 K02

•Analysis Performed By: MARK PEYSAKHOV

GO, Structure Structure Type Length ID of Structure Nor 4 EDS ' INonadt i No F B C M >=05 u Chrys Amphibole I Nmasb i Amoig/ND No Coord <5m i Eiemenis) '

3 <5" ZD

-

r

Struct = >U.5p >5:1 .Aspect Ratio Gnd acceptance: V: Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded Totals laboratory identification criteria observed <10% particulate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% [ I F i B i C M I 9= zDS spectrum conforming Io laboratory holes or opaque areas identification criteria observed Chrysotile AMPHIBOLES •Amphibole F = Single Fiber Amosite Crocidolite •Ambiguous i 3 = Bundle (<3 libers <1 liber diameter apart C = Cluster (>3 Intersections) Anthophyllite Non-Asbesios f T remotite M = Matrix Actinolite Non-ldentified I NSD = No Structures Detected

CITY_21MC100_000466335 NYC-WTC_000218344