NYC-WTC_000204757

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters): 1928 Lab Group #: •’382 Filter Type / Filter Area: MCE 385 mm’ Lab Sample #: 6 Grid Opening Size: 0.01124 Client Sample #: 06 Area Examined: 0.04496 mm’ GRID BOX- Magnirication: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: Analysis Date: 4/11/02

Analysis Performed By: ROMAN PEYSAKHOV

GO, Structure Structure Type Length ID of Structure N or \ No F B C M >=05 (J >^5iJ Chrys Amphibote Noria3 •'7mbig,N"V '•“"“■'d No Coord <5p I I Egments;

7.5 732/ Z1

Struct = > 0.5p >5:1 Aspect Ratio Gnd acceptance:

u = Positive diffraction pattern properties conforming to <50% undissolved filter, overlaoped or folded Totals icPoratory identification criteria obsen/ed <10% particulate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% f T j B I C M v = EOS spectrum conforming to laboratory boles or opaque areas identification criteria observed Chrvsotile AMPHIBOLES Amphibole F = Single Fiber Amosite 8 = aundle (<3 fibers <1 fiber diameter apan Crocidolite Ambiguous C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos i Tremolite M = Matrix Non-ldentitied Actinolite NSD = No Structures Detected

CITY_21MC100_003061859

NYC-WTC_000204757