NYC-WTC_000229112

NYC 9/11 Public Portal Document TEM Asbestos (air) Count Sheet Cttent Name: NYC BOE Volume (liters): 1800 Lab Group #: 7893 Filter Type / Filter Area: MCE 385 mm’ Lab Sample #: 13 Grid Opening Size: 0.01124 Client Sample #: 15 Area Examined: 0.04496 mm-

GRID BOX: /l7i. Maenification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 5/28/02

Analysis Performed By: ROMAN PEYSAKHOV

GO. Structure Structure Type Length 10 of Structure N or v' EDS (Nonadi) No F B C M >=05 M >=5p Chrys Amphibole Nonasb Amtig/ND No Coord <5p Elements)

Struct = > 0,5p >5:1 Aspect Ratio □rid acceptance: V = Positive diffraction pattern properties conforming to <50% Ufldisaotved fitter, overlapped or folded Totals laboratory identification criieiia observed <10% particulate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% F B C M ^/=.EDSspecfi’UHi conforming to laboratory holes or opaque areas identification criteria Observed Chrysotile AMPHIBOLES Amphibole F = Single Fiber Amosite B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Interseclionsi Anthophyltiie Non-Asbestos Tremolite M = Matrix Actinolite Non-Identified I NSD = No Structures Detected

CITY_21MC100_002902222

NYC-WTC_000229112