NYC-WTC_000202847

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: ATC Volume (liters): 3600 Lab Group #: 9035 Filter Type / Filter Area: MCE 385 Lab Sample #: 30 Grid Qpenin2 Size: 0.01124

Client Sample #: 30 Area Examined: 0.24728 mm^

GRID BOX: /■? Ma2nification: 20,000 GRID ID: Acceleratin2 Volta2e: 100 KeV # Grid Qpenin2s: 22 Analysis Date: 10/29/02

Analysis Performed By: ROMAN PEYSAKHOV

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

/X

I 1 C-s C/

/tX^

XzXj

i ! ' I I •' Photo No. (from 1 in 5 asbestos containing samples) I i Grid acceptance; Struct = > O.bu > 5;1 Aspect Ratio <60% undissolved filter, overlapped or folded Totals = Positive diffraction pattern properties conforming to <10% particulate coverage >50% coverage ate laooraton/ identification criteria observed least 20 unfolded or overlapped gnd squares <6% ' F I B I C i M i >5p holes or opaque areas v= EDS spectrum conforming to laboratory identification criteria observed Chrysotile AMPHIBOLES Amphibole I F = Single Fiber Amosite 3 = Bundle (<3 fibers <1 fiber diameter apan Crocidolite Ambiguous i C = Cluster (>3 Intersections! Anthophyllite Non-.Asbestos Tremolite M = Matrix Actinolite i Non-Identified NSC = No Structures Detected

CITY_21MC100_003069341

NYC-WTC_000202876